Official Paper

SSC JE Mechanical 05 Jun 2024 Shift 2 Official Paper - 1 (Previous Year Paper)

200 questions · 120 minutes · with answers · free

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General Intelligence and Reasoning (50 questions)

1

What should come in place of the question mark (?) in the given series?

2, 5, 13, 28, 52, 87, ?

  1. ((a))

    130 

  2. ((b))

    98 

  3. ((c))

    135 

  4. ((d))

    107

Show Answer
Answer: ((a))

130 

2

In a certain code language, ‘HAIR’ is coded as ‘7935’ and ‘AGED’ is coded as ‘4892’. What is the code for ‘A’ in the given language?

  1. ((a))

    5

  2. ((b))

    9

  3. ((c))

    3

  4. ((d))

    4

Show Answer
Answer: ((a))

5

3

The position(s) of how many letters will remain unchanged if each of the letters in the word STAMPED is arranged in the English alphabetical order? 

  1. ((a))

    Two 

  2. ((b))

    Three 

  3. ((c))

    Four 

  4. ((d))

    One

Show Answer
Answer: ((a))

Two 

4

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements :

All frames are rocks.

All rocks are clips.

All clips are towels.

Conclusion (I) : All frames are towels.

Conclusion (II) : At least some clips are frames.

  1. ((a))

    Both conclusions (I) and (II) follow

  2. ((b))

    Only conclusion (II) follows 

  3. ((c))

    Neither conclusion (I) nor (II) follows

  4. ((d))

    Only conclusion (I) follows

Show Answer
Answer: ((a))

Both conclusions (I) and (II) follow

5

If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−‘, what will come in place of the question mark ‘?’ in the following equation?

10 B 2 D 15 A 3 C 7 = ?

  1. ((a))

    22 

  2. ((b))

    20 

  3. ((c))

    21 

  4. ((d))

    24 

Show Answer
Answer: ((a))

22 

6

In a certain code language, ‘FLEW’ is coded as ‘8462’ and ‘LORD’ is coded as ‘9736’. What is the code for ‘L’ in the given code language? 

  1. ((a))

    6

  2. ((b))

    4

  3. ((c))

    7

  4. ((d))

    9

Show Answer
Answer: ((a))

6

7

In a certain code language,

A + B means ‘A is the sister of B’

A # B means ‘A is the brother of B’

A × B means ‘A is the wife of B’

A @ B means ‘A is the father of B’

Based on the above, how is E related to M if ‘E # F × H @ G + M’?

  1. ((a))

    Brother 

  2. ((b))

    Mother’s father 

  3. ((c))

    Mother’s brother

  4. ((d))

    Father

Show Answer
Answer: ((a))

Brother 

8

This question consists of a pair of words which have a certain relationship to each other. Select the pair which has the same relationship.

(The words must be considered as meaningful English words and must not be related to each other based on the number of letters / number of consonants / vowels in the word.)

Altimeter : Altitudes

  1. ((a))

    Fathometer : Presure 

  2. ((b))

    Taseometer : Wind 

  3. ((c))

    Protractor : Light 

  4. ((d))

    Hygrometer : Humidity

Show Answer
Answer: ((a))

Fathometer : Presure 

9

What should come in place of the question mark (?) in the given series based on the English alphabetical order?

DMY, BKW, ZIU, XGS, ?

  1. ((a))

    UDP 

  2. ((b))

    WCR 

  3. ((c))

    UFR 

  4. ((d))

    VEQ

Show Answer
Answer: ((a))

UDP 

10

What should come in place of the question mark (?) in the given series.

6, 3, 12, 6, 24, ?, 48, 24, 96

  1. ((a))

    12

  2. ((b))

    48

  3. ((c))

    6

  4. ((d))

    24

Show Answer
Answer: ((a))

12

11

In a certain code language, ‘apple is healthy’ is written as ‘di jl ew’ and ‘apple is red’ is written as ‘di ko ew’. How is ‘red’ written in the given language? 

  1. ((a))

    jl 

  2. ((b))

    ew 

  3. ((c))

    di 

  4. ((d))

    ko 

Show Answer
Answer: ((a))

jl 

12

What should come in place of the question mark (?) in the given series based on the English alphabetical order ?

INJ, LQM, OTP, RWS, ?

  1. ((a))

    VUZ

  2. ((b))

    UVZ 

  3. ((c))

    VZU 

  4. ((d))

    UZV

Show Answer
Answer: ((a))

VUZ

13

Six friends Abby, Bunny, Chan, Dolly, Emma and Fanny have different weights. Dolly’s weight is an odd number. Dolly is heavier than Emma but not the heaviest. Chan is heavier than Fanny but lighter than Dolly. Chan is not heavier than Emma but is heavier than Fanny and Abby. Abby’s weight is not an odd number. The lightest weight is 45 kilograms and the heaviest weight is 80 kilograms.

Who is the heaviest person in the group?

  1. ((a))

    Abby 

  2. ((b))

    Bunny

  3. ((c))

    Emma 

  4. ((d))

    Chan

Show Answer
Answer: ((a))

Abby 

14

What should come in place of the question mark (?) in the given series based on the English alphabetical order ?

RQO, LKI, FEC, ZYW, TSQ, ?

  1. ((a))

    NMK 

  2. ((b))

    MNL 

  3. ((c))

    NML 

  4. ((d))

    MNK

Show Answer
Answer: ((a))

NMK 

15

The position(s) of how many letters will remain unchanged if each of the letters in the word FOREIGN is arranged in the English alphabetical order? 

  1. ((a))

    None 

  2. ((b))

    One 

  3. ((c))

    Two 

  4. ((d))

    Three

Show Answer
Answer: ((a))

None 

16

A, B, C, D, E and F are sitting around a circular table facing the centre (not necessarily in the same order). B is sitting to the immediate right of F and immediate left of C. C is sitting to the immediate left of E. A is sitting to the immediate right of E and to the immediate left of D. Who is sitting to the immediate left of F? 

  1. ((a))

    A

  2. ((b))

    C

  3. ((c))

    B

  4. ((d))

    D

Show Answer
Answer: ((a))

A

17

Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below.

(The words must be considered as meaningful English words and must not be related to each other based on the number of letters / number of consonants / vowels in the word.)

Mycology : Fungi

  1. ((a))

    Ornithology : Eggs 

  2. ((b))

    Seismology : Earthquakes

  3. ((c))

    Paedology : Planets 

  4. ((d))

    Entomology : Birds 

Show Answer
Answer: ((a))

Ornithology : Eggs 

18

Madan starts from point A and drives 4 km towards the South. He then takes a left turn and drives 5 km. he then takes a right turn and drives 2 km. He then takes another right turn and drives 3 km. He takes a final right turn and drives 6 km to reach point B. How far (shortest distance) and towards which direction should he drive to reach Point A again? (All turns are 90 degrees turns only unless specified) 

  1. ((a))

    3 km West 

  2. ((b))

    2 km West 

  3. ((c))

    2 km East 

  4. ((d))

    3 km East 

Show Answer
Answer: ((a))

3 km West 

19

Select the option that indicates the arrangement of the following words in meaningful and logical order.

  1. Word
  2. Paragraph
  3. Sentence
  4. Letter
  5. Phrase
  1. ((a))

    1, 3, 2, 4, 5 

  2. ((b))

    2, 1, 5, 4, 3 

  3. ((c))

    5, 1, 3, 2, 4 

  4. ((d))

    4, 1, 5, 3, 2

Show Answer
Answer: ((a))

1, 3, 2, 4, 5 

20

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(45, 23, 73)

(19, 27, 51)

  1. ((a))

    (22, 29, 52) 

  2. ((b))

    (12, 19, 30) 

  3. ((c))

    (16, 14, 35)

  4. ((d))

    (31, 17, 48) 

Show Answer
Answer: ((a))

(22, 29, 52) 

21

Select the figure from the options that can replace the question mark (?) and complete the given pattern. 

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

22

What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘÷’ are interchanged and ‘×’ and ‘−’ are interchanged?

10 + 2 − 10 ÷ 5 × 10 = ?

  1. ((a))

    35 

  2. ((b))

    45 

  3. ((c))

    32 

  4. ((d))

    40 

Show Answer
Answer: ((a))

35 

23

In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g., 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(6, 34)

(8, 46)

  1. ((a))

    (12, 76) 

  2. ((b))

    (10, 58) 

  3. ((c))

    (7, 38) 

  4. ((d))

    (4, 24) 

Show Answer
Answer: ((a))

(12, 76) 

24

LQNR is related to PURV in a certain way based on the English alphabetical order. In the same way, OTQU is related to SXUY. To which of the following is GLIM related, following the same logic?

  1. ((a))

    PKMQ 

  2. ((b))

    PQMK 

  3. ((c))

    KPMQ 

  4. ((d))

    QPMK 

Show Answer
Answer: ((a))

PKMQ 

25

LQKN is related to PUOR in a certain way based on the English alphabetical order. In the same way, INHK is related to MRLO. To which of the following is QVPS related, following the same logic? 

  1. ((a))

    WZTU 

  2. ((b))

    UZWT 

  3. ((c))

    WZUT 

  4. ((d))

    UZTW

Show Answer
Answer: ((a))

WZTU 

26

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding / deleting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(9, 576, 8)

(7, 252, 6)

  1. ((a))

    (10, 40, 2)

  2. ((b))

    (4, 82, 5) 

  3. ((c))

    (15, 210, 7)

  4. ((d))

    (8, 650, 10)

Show Answer
Answer: ((a))

(10, 40, 2)

27

What should come in place of ‘?’ in the given series?

394, 465, 536, 607, 678, ?

  1. ((a))

    756 

  2. ((b))

    736 

  3. ((c))

    768 

  4. ((d))

    749

Show Answer
Answer: ((a))

756 

28

142 is related to 92 following a certain logic. Following the same logic, 255 is related to 205. To which of the following is 457 related following the same logic?

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

  1. ((a))

    407 

  2. ((b))

    417 

  3. ((c))

    427

  4. ((d))

    437 

Show Answer
Answer: ((a))

407 

29

Select the option figure that can replace the question mark (?) in the figure given below to complete the pattern. 

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

30

IMPU is related to LPSX in a certain way based on the English alphabetical order. In the same way, BEKN is related to EHNQ. To which of the following is CLQS related, following the same logic?

  1. ((a))

    FOTV 

  2. ((b))

    IJSH

  3. ((c))

    PLNF 

  4. ((d))

    ACLK

Show Answer
Answer: ((a))

FOTV 

31

What will come in place of the question mark (?) in the following equation if ‘+’ and ‘÷’ are interchanged and ‘×’ and ‘−’ are interchanged?

21 ÷ 15 × 52 + 13 – 7 = ?

  1. ((a))

    8

  2. ((b))

    10

  3. ((c))

    12

  4. ((d))

    7

Show Answer
Answer: ((a))

8

32

A, B, C, D, E, and F are sitting at a circular table facing the centre (not necessarily in the same order). A is to the immediate left of B, E is third to the right of B, D is to the immediate right of C. F is third to the right of C. Who are the immediate neighbours of E?

a) A and B

b) B and D

c) D and F

d) F and B

  1. ((a))

    (b) 

  2. ((b))

    (c) 

  3. ((c))

    (d)

  4. ((d))

    (a) 

Show Answer
Answer: ((a))

(b) 

33

In a certain code language, ‘SANG’ is coded as ‘3618’, and ‘RANG’ is coded as ‘6438’. What is the code for ‘S’ in that language?

  1. ((a))

    6

  2. ((b))

    3

  3. ((c))

    1

  4. ((d))

    8

Show Answer
Answer: ((a))

6

34

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements.

Statements :

Some cars are grass.

All trucks are cars.

Conclusion 1 : Some trucks are not cars.

Conclusion 2 : Some trucks are grass.

  1. ((a))

    Both conclusion 1 and 2 follow 

  2. ((b))

    Only conclusion 1 follows

  3. ((c))

    Only conclusion 2 follows 

  4. ((d))

    Neither conclusion 1 nor 2 follows 

Show Answer
Answer: ((a))

Both conclusion 1 and 2 follow 

35

What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘×’ are interchanged and ‘−’ and ‘÷’ are interchanged?

12 + 4 − 24 × 11 ÷ 13 = ?

  1. ((a))

    0

  2. ((b))

    10

  3. ((c))

    -20

  4. ((d))

    -10

Show Answer
Answer: ((a))

0

36

In a certain code language,

‘A + B’ means ‘A is the brother of B’,

‘A − B’ means ‘A is the mother of B’,

‘A × B’ means ‘A is the wife of B’ and

‘A ÷ B’ means ‘A is the father of B’.

How is B related to L if ‘B × G ÷ T + K − L’?

  1. ((a))

    Father’s father 

  2. ((b))

    Sister’s daughter 

  3. ((c))

    Mother’s mother

  4. ((d))

    Brother’s daughter

Show Answer
Answer: ((a))

Father’s father 

37

STAR is related to TWCV in a certain way based on the English alphabetical order. In the same way, PARK is related to QDTO. To which of the following is MILK related, following the same logic? 

  1. ((a))

    NLMO

  2. ((b))

    MLMO

  3. ((c))

    NLNO 

  4. ((d))

    MLNO 

Show Answer
Answer: ((a))

NLMO

38

Select the option in which the given figure is embedded (rotation is NOT allowed). 

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

39

Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

40

OB 8 is related to UE 3 in a certain way. In the same way, TO 11 is related to ZR 6. To which of the following is IB 8 related, following the same logic? 

  1. ((a))

    OE 3

  2. ((b))

    PF -3 

  3. ((c))

    PE 3 

  4. ((d))

    OF 3

Show Answer
Answer: ((a))

OE 3

41

Select the correct option that indicates the arrangement of the following planets according to their size.

  1. Mars
  2. Jupiter
  3. Venus
  4. Earth
  5. Mercury
  1. ((a))

    5, 3, 4, 2, 1

  2. ((b))

    5, 1, 3, 4, 2 

  3. ((c))

    5, 4, 2, 1, 3

  4. ((d))

    5, 2, 1, 3, 4

Show Answer
Answer: ((a))

5, 3, 4, 2, 1

42

Jennifer starts from Point D and drives 3 km towards the north. She then takes a left turn and drives 10 km. She then takes another left turn and drives 6 km. She takes one more left turn and drives 5 km. She then takes a right turn and drives 3 km. She takes a final left turn and drives 5 km to reach point E. How far (shortest distance) and towards which direction should she drive in order to reach Point D again? (All turns are 90 degree turns only, unless specified) 

  1. ((a))

    6 km North

  2. ((b))

    3 km North

  3. ((c))

    5 km East 

  4. ((d))

    5 km North 

Show Answer
Answer: ((a))

6 km North

43

Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

44

Select the option in which the numbers share the same relationship as that shared by the given number triads.

120 - 100 - 60

240 - 220 - 180

(NOTE : Operations should be performed on the whole number, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed.)

  1. ((a))

    220 - 210 - 200

  2. ((b))

    150 - 160 - 140

  3. ((c))

    200 - 180 - 140 

  4. ((d))

    90 - 80 - 75 

Show Answer
Answer: ((a))

220 - 210 - 200

45

Select the option figure in which the given figure is embedded as its part (rotation is NOT allowed).

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

46

How many triangles are there in the given figure?

  1. ((a))

    11

  2. ((b))

    14

  3. ((c))

    12

  4. ((d))

    13

Show Answer
Answer: ((a))

11

47

15 is related to 230 following a certain logic. Following the same logic, 4 is related to 21. To which of the following is 12 related following the same logic?

(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting / multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

  1. ((a))

    147

  2. ((b))

    146

  3. ((c))

    149

  4. ((d))

    150

Show Answer
Answer: ((a))

147

48

What should come in place of the question mark (?) in the given series based on the English alphabetical order

KMO, HJL, EGI, BDF, ?

  1. ((a))

    ZBC 

  2. ((b))

    YBC 

  3. ((c))

    YAC 

  4. ((d))

    ZAC

Show Answer
Answer: ((a))

ZBC 

49

What should come in place of the question mark (?) in the given series based on the English alphabetical order ?

MAT MET MIT MOT ?

  1. ((a))

    MNT

  2. ((b))

    MXT

  3. ((c))

    MVT

  4. ((d))

    MUT

Show Answer
Answer: ((a))

MNT

50

What should come in place of the question mark (?) in the given series based on the English alphabetical order?

LXC, OZD, RBE, UDF, ?

  1. ((a))

    ZDI 

  2. ((b))

    XHJ 

  3. ((c))

    YGH 

  4. ((d))

    XFG

Show Answer
Answer: ((a))

ZDI 

General Awareness (50 questions)

51

What is the SI unit of force? 

  1. ((a))

    Volt 

  2. ((b))

    Joule 

  3. ((c))

    Newton 

  4. ((d))

    Watt 

Show Answer
Answer: ((a))

Volt 

52

The government of which of the following states launched the ‘Nand Baba Milk Mission’ scheme in June 2023 ? 

  1. ((a))

    Bihar 

  2. ((b))

    Madhya Pradesh

  3. ((c))

    Himachal Pradesh 

  4. ((d))

    Uttar Pradesh

Show Answer
Answer: ((a))

Bihar 

53

When was Swami Vivekananda born? 

  1. ((a))

    12 January 1859

  2. ((b))

    12 January 1863 

  3. ((c))

    12 January 1866 

  4. ((d))

    12 January 1853

Show Answer
Answer: ((a))

12 January 1859

54

The National Defense Fund is governed by an Executive Committee, which is chaired by the: 

  1. ((a))

    President 

  2. ((b))

    Prime Minister

  3. ((c))

    Vice President 

  4. ((d))

    Defence Minister

Show Answer
Answer: ((a))

President 

55

The total number of bishops in a chess game is _____.

  1. ((a))

    one 

  2. ((b))

    two 

  3. ((c))

    three 

  4. ((d))

    four

Show Answer
Answer: ((a))

one 

56

Which of the following is the correct option for using 'justify' alignment to a paragraph in a document? 

  1. ((a))

    Aligns text only to the left

  2. ((b))

    Aligns text only to the right

  3. ((c))

    Aligns text to both left and right edges

  4. ((d))

    Align text in the center

Show Answer
Answer: ((a))

Aligns text only to the left

57

Arachnids belong to which subphylum of the phylum Arthropoda? 

  1. ((a))

    Chelicerata 

  2. ((b))

    Myriapoda 

  3. ((c))

    Hexapoda 

  4. ((d))

    Crustacea 

Show Answer
Answer: ((a))

Chelicerata 

58

During which years did Khalji dynasty ruled over Delhi?

  1. ((a))

    1451 - 1526

  2. ((b))

    1290 - 1320

  3. ((c))

    1414 - 1451 

  4. ((d))

    1320 - 1414

Show Answer
Answer: ((a))

1451 - 1526

59

It is a fact that if you drink from a plastic bottle and throw it in the dustbin, it will still be there when your grandchildren are old. What is the reason behind this?

  1. ((a))

    Plastics are biodegradable. 

  2. ((b))

    Plastics are radioactive.

  3. ((c))

    Plastics are non - biodegradable. 

  4. ((d))

    Plastics are heavy metals.

Show Answer
Answer: ((a))

Plastics are biodegradable. 

60

What is the primary focus of the ASPIRE scheme of the Ministry of Micro, Small & Medium Enterprises, Government of India?

  1. ((a))

    Urban development 

  2. ((b))

    Technology innovation

  3. ((c))

    Environmental conservation

  4. ((d))

    Establishment of livelihoods business incubation centres 

Show Answer
Answer: ((a))

Urban development 

61

You grew a small plant in a planter. On maturity, you observed that the plant has green stem, very few branches and the stem is so soft that you could easily break it with your hands. Under which category will you put this plant? 

  1. ((a))

    Tree 

  2. ((b))

    Creeper 

  3. ((c))

    Shrub 

  4. ((d))

    Herb 

Show Answer
Answer: ((a))

Tree 

62

The valency of Ca is 2+ . The valency of O is 2− . What is the simplified chemical formula of Calcium oxide?

  1. ((a))

    Ca2O2 

  2. ((b))

    CaO 

  3. ((c))

    CaO2

  4. ((d))

    Ca2O

Show Answer
Answer: ((a))

Ca2O2 

63

Who introduced the Anusandhan National Research Foundation Bill, 2023, in the Lok Sabha? 

  1. ((a))

    Dr. Jitender Singh 

  2. ((b))

    Gopal Rai 

  3. ((c))

    Imran Hussain

  4. ((d))

    Piyush Goyal 

Show Answer
Answer: ((a))

Dr. Jitender Singh 

64

Who among the following musicians received the Padma Bhushan Award 2022 for his contributions in the field of art?

  1. ((a))

    Manilal Nag

  2. ((b))

    Madan Singh Chauhan

  3. ((c))

    Rashid Khan

  4. ((d))

    Chhannulal Mishra

Show Answer
Answer: ((a))

Manilal Nag

65

Name the scheme launched by the Prime Minister on 17 September 2023 that aims to improve the lives of artisans.

  1. ((a))

    PM Vishwakarma

  2. ((b))

    PM Shilpgram 

  3. ((c))

    PM Anantakalpaaya

  4. ((d))

    PM Kalashi 

Show Answer
Answer: ((a))

PM Vishwakarma

66

Which Chief Justice of India was sworn in as the acting President of India on 20th July 1969 ?

  1. ((a))

    Justice Harilal Jekisundas Kania 

  2. ((b))

    Justice M Patanjali Sastri

  3. ((c))

    Justice Sudhi Ranjan Das 

  4. ((d))

    Justice Mohammad Hidayatullah 

Show Answer
Answer: ((a))

Justice Harilal Jekisundas Kania 

67

Which of the following values is subtracted from the numerical value of temperature expressed in Kelvin to obtain the temperature in degrees Celsius ?

  1. ((a))

    253

  2. ((b))

    273 

  3. ((c))

    293 

  4. ((d))

    313

Show Answer
Answer: ((a))

253

68

Which of the following is a heart - related disease? 

  1. ((a))

    Goiter 

  2. ((b))

    Diabetes 

  3. ((c))

    Angina 

  4. ((d))

    Acromegaly

Show Answer
Answer: ((a))

Goiter 

69

How do estuaries serve as critical habitats for various species? 

  1. ((a))

    Estuaries have no ecological significance.

  2. ((b))

    Estuaries provide breeding grounds and nurseries for marine organisms. 

  3. ((c))

    Estuaries contribute to desertification. 

  4. ((d))

    Estuaries are only important for recreational activities.

Show Answer
Answer: ((a))

Estuaries have no ecological significance.

70

Which of the following places receives rainfall from the Bay of Bengal branch of southwest monsoon?

  1. ((a))

    Surat 

  2. ((b))

    Panaji

  3. ((c))

    Kolkata 

  4. ((d))

    Ratnagiri 

Show Answer
Answer: ((a))

Surat 

71

Olympic medalist Vijender Singh belongs to which State of India?

  1. ((a))

    Punjab 

  2. ((b))

    Delhi 

  3. ((c))

    Haryana 

  4. ((d))

    Maharashtra

Show Answer
Answer: ((a))

Punjab 

72

Private income minus tax payment minus non - tax payment will give us the estimate for ______. 

  1. ((a))

    private income 

  2. ((b))

    gross income

  3. ((c))

    personal disposable income 

  4. ((d))

    national income

Show Answer
Answer: ((a))

private income 

73

Identify the INCORRECT pair (railway zone and  headquarters) from the following. 

  1. ((a))

    South - East Central Railway Zone – Bilaspur 

  2. ((b))

    North Western Railway Zone – Jaipur

  3. ((c))

    South Western Railway Zone – Hubli

  4. ((d))

    Central Railway Zone – Kolkata

Show Answer
Answer: ((a))

South - East Central Railway Zone – Bilaspur 

74

Who was the leader of the temple entry movement in 1930 at Kalaram temple, Nashik?

  1. ((a))

    Swami Achhutanand 

  2. ((b))

    NG Ranga

  3. ((c))

    Mahatma Gandhi 

  4. ((d))

    Dr. BR Ambedkar

Show Answer
Answer: ((a))

Swami Achhutanand 

75

Which of the following Ministers introduced the Central Goods and Services Tax (Amendment) Bill 2023 and the Integrated Goods and Services Tax (Amendment) Bill 2023 in the Lok Sabha?

  1. ((a))

    Nirmala Sitharaman

  2. ((b))

    Harpal Singh

  3. ((c))

    Bikram Keshari Arukha

  4. ((d))

    Manohar Lal Khattar

Show Answer
Answer: ((a))

Nirmala Sitharaman

76

Narmada Bachao Andolan (Save Narmada Movement) is a/an ______.

  1. ((a))

    project of Jal Shakti Ministry 

  2. ((b))

    government initiative 

  3. ((c))

    forest conservation movement 

  4. ((d))

    Social movement 

Show Answer
Answer: ((a))

project of Jal Shakti Ministry 

77

Match the following states with their percentage urban population in India, as per Census 2011.

i)Keralaa)10.04%
ii)Madhya Pradeshb)47.72%
iii)Tamil Naduc)27.63%
iv)Himachal Pradeshd)48.45%
  1. ((a))

    i) - d, ii) - c, iii) - b, iv) - a 

  2. ((b))

    i) - a, ii) - d, iii) - c, iv) - b

  3. ((c))

    i) - a, ii) - b, iii) - c, iv) - d

  4. ((d))

    i) - b, ii) - c, iii) - d, iv) - a

Show Answer
Answer: ((a))

i) - d, ii) - c, iii) - b, iv) - a 

78

What is the primary function of the Golgi apparatus? 

  1. ((a))

    Lipid production 

  2. ((b))

    Sorting and packaging of cellular products

  3. ((c))

    Protein synthesis

  4. ((d))

    Cellular respiration 

Show Answer
Answer: ((a))

Lipid production 

79

Who was elected as the 16th Speaker of the Himachal Pradesh Legislative Assembly in January 2023?

  1. ((a))

    Suresh Bhardwaj 

  2. ((b))

    Jai Ram Thakur 

  3. ((c))

    Kuldeep Singh Pathania 

  4. ((d))

    Anurag Thakur

Show Answer
Answer: ((a))

Suresh Bhardwaj 

80

Which of the following sentences is/are correct?

i. According to the Census of India 2011, the total population of India is 141 crores.

ii. Between 1911 and 1921, there was a negative rate of growth of India’s population.

iii. Between 1901 and 1951, the average annual growth of India’s population did not exceed 1.33%.

  1. ((a))

    Only i and ii 

  2. ((b))

    Only i and iii 

  3. ((c))

    Only i 

  4. ((d))

    Only ii and iii

Show Answer
Answer: ((a))

Only i and ii 

81

Which of the following articles of the Constitution of India provides measures to ensure the enforcement of Fundamental Rights?

  1. ((a))

    Article 19 

  2. ((b))

    Article 32 

  3. ((c))

    Article 29 

  4. ((d))

    Article 14 

Show Answer
Answer: ((a))

Article 19 

82

Which of the following is a macronutrient? 

  1. ((a))

    Vitamins 

  2. ((b))

    Carbohydrates 

  3. ((c))

    Minerals 

  4. ((d))

    Antioxidants

Show Answer
Answer: ((a))

Vitamins 

83

Which organelle contains enzymes for digesting cellular waste and foreign materials? 

  1. ((a))

    Nucleus 

  2. ((b))

    Mitochondrion 

  3. ((c))

    Lysosome 

  4. ((d))

    Vacuole

Show Answer
Answer: ((a))

Nucleus 

84

Which are the two major branches of the southwest monsoon in India?

  1. ((a))

    The Himalayan Mountain branch and the Gulf of Mannar branch 

  2. ((b))

    The Arabian Sea branch and the Bay of Bengal branch

  3. ((c))

    The Arabian Sea branch and the Tibetan plateau branch

  4. ((d))

    The Tibetan plateau branch and the Bay of Bengal branch

Show Answer
Answer: ((a))

The Himalayan Mountain branch and the Gulf of Mannar branch 

85

To cherish and follow the noble ideals that inspired our national struggle for freedom is a ______ fundamental duty in the list of fundamental duties enshrined in our Indian Constitution.

  1. ((a))

    first 

  2. ((b))

    second

  3. ((c))

    third

  4. ((d))

    fourth

Show Answer
Answer: ((a))

first 

86

In plant cells, which organelle is responsible for photosynthesis? 

  1. ((a))

    Chloroplast 

  2. ((b))

    Mitochondrion

  3. ((c))

    Lysosome 

  4. ((d))

    Peroxisome

Show Answer
Answer: ((a))

Chloroplast 

87

Which compound is used to neutralise fatty acids and convert them into salts in a process called saponification?

  1. ((a))

    Sodium fluoride

  2. ((b))

    Sodium acetate

  3. ((c))

    Sodium chlorate

  4. ((d))

    Sodium hydroxide 

Show Answer
Answer: ((a))

Sodium fluoride

88

In 1800, which of the following experimental achievements was made by William Nicholson? 

  1. ((a))

    Discovery of water electrolysis

  2. ((b))

    Discovery of thermionic emission 

  3. ((c))

    Discovery of low - cost filters for polarizing light

  4. ((d))

    Discovery of electric bulb 

Show Answer
Answer: ((a))

Discovery of water electrolysis

89

Which of the following is/are a gymnosperm? 

  1. ((a))

    Fern

  2. ((b))

    Cycas 

  3. ((c))

    Mosses

  4. ((d))

    Rose 

Show Answer
Answer: ((a))

Fern

90

The particles that form the main part of the nucleus of an atom are together known as: 

  1. ((a))

    isotopes 

  2. ((b))

    ions 

  3. ((c))

    nucleons 

  4. ((d))

    electrons

Show Answer
Answer: ((a))

isotopes 

91

Who said “a cherry that will drop into our mouth one day” about the kingdom of Awadh? 

  1. ((a))

    Lord Mountbatten

  2. ((b))

    Lord Dalhousie

  3. ((c))

    Lord Curzon

  4. ((d))

    Lord Lytton

Show Answer
Answer: ((a))

Lord Mountbatten

92

If an earthquake happens at the sea floor and one tectonic plate dips under the another, this will most probably lead to a natural disaster known as: 

  1. ((a))

    Typhoon 

  2. ((b))

    Tsunami 

  3. ((c))

    Cyclone 

  4. ((d))

    Tornado

Show Answer
Answer: ((a))

Typhoon 

93

Which of the following is the shortcut key to create a new paragraph in MS Word?

  1. ((a))

    Ctrl + N

  2. ((b))

    Ctrl + P 

  3. ((c))

    Enter 

  4. ((d))

    Shift + Enter

Show Answer
Answer: ((a))

Ctrl + N

94

Which of the following committees was responsible for making recommendations that led to the 42nd Constitutional Amendment for the declaration of Fundamental Duties?

  1. ((a))

    Swaran Singh Committee

  2. ((b))

    Abid Hussain Committee 

  3. ((c))

    Khusro Committee 

  4. ((d))

    Raja Chelliah Committe

Show Answer
Answer: ((a))

Swaran Singh Committee

95

The office of the Registrar General and Census Commissioner works under which Ministry of Government of India? 

  1. ((a))

    Ministry of Finance

  2. ((b))

    Ministry of Personnel, Public Grievances and Pensions 

  3. ((c))

    Ministry of Home Affairs 

  4. ((d))

    Ministry of Social Justice and Empowerment 

Show Answer
Answer: ((a))

Ministry of Finance

96

______ is referred to as paper taxes. 

  1. ((a))

    Gift tax

  2. ((b))

    Corporation tax 

  3. ((c))

    Customs duty

  4. ((d))

    Excise tax 

Show Answer
Answer: ((a))

Gift tax

97

Sange Meel Se Mulaqat is a documentary on the life of _______, directed by Gautam Ghosh.

  1. ((a))

    Pandit Bismillah Khan 

  2. ((b))

    Pandit Ram Narayan

  3. ((c))

    Pandit Bhimsen Joshi 

  4. ((d))

    Pandit Biswajit Roy Chowdhury

Show Answer
Answer: ((a))

Pandit Bismillah Khan 

98

Which of the following bacterial infections often affects the lungs ? 

  1. ((a))

    Meningitis 

  2. ((b))

    Influenza 

  3. ((c))

    Tuberculosis 

  4. ((d))

    Herpes

Show Answer
Answer: ((a))

Meningitis 

99

Name the first Finance Minister of independent India, whose statue was inaugurated by the Union Textiles Minister in Coimbatore . 

  1. ((a))

    RK Shanmugam Chetty

  2. ((b))

    CD Deshmukh

  3. ((c))

    TT Krishnamachari

  4. ((d))

    Sachindra Chaudhuri

Show Answer
Answer: ((a))

RK Shanmugam Chetty

100

Who among the following is the author of the book published in December 2021, ‘The Monk Who Transformed Uttar Pradesh’? 

  1. ((a))

    Shashi Tharoor 

  2. ((b))

    Shantanu Gupta 

  3. ((c))

    Amish Tripathi 

  4. ((d))

    Yashika Dutta

Show Answer
Answer: ((a))

Shashi Tharoor 

Mechanical Engineering (100 questions)

101

When the compressor and motor operate on the same shaft and are enclosed in a common casing, they are known as ______. 

  1. ((a))

    centrifugal compressors

  2. ((b))

    hermetic sealed compressors

  3. ((c))

    axial compressors

  4. ((d))

    reciprocating compressors 

Show Answer
Answer: ((a))

centrifugal compressors

102

The surging phenomenon in a centrifugal compressor occurs when the refrigeration load decreases to below:

  1. ((a))

    65% of the rated capacity 

  2. ((b))

    35% of the rated capacity

  3. ((c))

    55% of the rated capacity

  4. ((d))

    45% of the rated capacity

Show Answer
Answer: ((a))

65% of the rated capacity 

103

The given figure shows the p - V diagram of:

  1. ((a))

    aircraft refrigeration system 

  2. ((b))

    vapour absorption refrigeration system

  3. ((c))

    Electrolux refrigeration system 

  4. ((d))

    vapour compression refrigeration system

Show Answer
Answer: ((a))

aircraft refrigeration system 

104

Which of the following is NOT the application for steam in industry? 

  1. ((a))

    De - atomisation 

  2. ((b))

    Humidification 

  3. ((c))

    Heating 

  4. ((d))

    Propulsion

Show Answer
Answer: ((a))

De - atomisation 

105

Which of the following refrigeration lubricants were the first synthetic oils to be used in the refrigeration industry?

  1. ((a))

    Alkylbenzenes oil 

  2. ((b))

    Polyol ester oil

  3. ((c))

    Poly alkylene glycol oil 

  4. ((d))

    Mineral oil

Show Answer
Answer: ((a))

Alkylbenzenes oil 

106

Variation of power input with speed at constant discharge in case of a centrifugal pump is _______. 

  1. ((a))

    cubic 

  2. ((b))

    linear 

  3. ((c))

    parabolic 

  4. ((d))

    logarithmic 

Show Answer
Answer: ((a))

cubic 

107

A cantilever beam of length 2 m is subjected to a point load of 3 kN at a distance of 2 m and is subjected to a UDL of 3 kN/m for a total distance of 1.5 m from the fixed end. Calculate the shear force and bending moment at the fixed end.

  1. ((a))

    − 5.75 kN, − 5.545 kN - m

  2. ((b))

    − 10 kN, 15.254 kN - m

  3. ((c))

    − 12.5 kN, − 8.547 kN - m

  4. ((d))

    − 7.5 kN, − 9.375 kN - m

Show Answer
Answer: ((a))

− 5.75 kN, − 5.545 kN - m

108

In case of a four - stroke diesel engine, the valve timing diagram is expressed in terms of _____. 

  1. ((a))

    the time taken for opening and closing of the valve with respect to TDC and BDC 

  2. ((b))

    the time taken for opening and closing of the valve with respect to only TDC

  3. ((c))

    the degree of the crank angle at the time of opening and closing of the valve 

  4. ((d))

    the linear movement of the piston with respect to TDC and BDC 

Show Answer
Answer: ((a))

the time taken for opening and closing of the valve with respect to TDC and BDC 

109

The location of centre of gravity for a sphere of radius (R) from the geometrical centre is at a distance of

  1. ((a))

    0

  2. ((b))

    0.25R

  3. ((c))

    0.5R 

  4. ((d))

    R 

Show Answer
Answer: ((a))

0

110

‘No slip condition’ at a fixed surface is applicable to the flow of which type of fluids? 

  1. ((a))

    Only ideal fluids 

  2. ((b))

    All non - Newtonian fluids 

  3. ((c))

    Only Newtonian fluids

  4. ((d))

    All real fluids

Show Answer
Answer: ((a))

Only ideal fluids 

111

The conventional depth of a cut considered in the parting operation using a lathe is ______. 

  1. ((a))

    1 mm to 2 mm

  2. ((b))

    20 mm to 25 mm

  3. ((c))

    12 mm to 16 mm 

  4. ((d))

    3 mm to 10 mm 

Show Answer
Answer: ((a))

1 mm to 2 mm

112

When a system is undergoing constant volume process, then heat transfer is equal to: 

  1. ((a))

    change in entropy

  2. ((b))

    change in enthalpy

  3. ((c))

    work transfer 

  4. ((d))

    change in internal energy

Show Answer
Answer: ((a))

change in entropy

113

When the fluid pressure is measured above the absolute zero pressure, the measured pressure is known as _______ . 

  1. ((a))

    gauge pressure

  2. ((b))

    vacuum pressure

  3. ((c))

    atmospheric pressure

  4. ((d))

    absolute pressure

Show Answer
Answer: ((a))

gauge pressure

114

The process that involves passage of a higher - pressure fluid through a narrow constriction is called: 

  1. ((a))

    free expansion process 

  2. ((b))

    polytropic process 

  3. ((c))

    hyperbolic process 

  4. ((d))

    throttling process 

Show Answer
Answer: ((a))

free expansion process 

115

What will not happen if the liquid has greater adhesion than cohesion? 

  1. ((a))

    Liquid will tend to rise at the point of contact.

  2. ((b))

    Liquid will wet a solid surface. 

  3. ((c))

    Liquid surface will be concave downwards in a small diameter tube. 

  4. ((d))

    The angle of contact will be less than 90° in a small diameter tube. 

Show Answer
Answer: ((a))

Liquid will tend to rise at the point of contact.

116

In the vapour compression refrigeration cycle with dry saturated vapour after compression, the entropy at the end of compression is the same as the _______. 

  1. ((a))

    entropy at the end of expansion 

  2. ((b))

    entropy at the end of condensation

  3. ((c))

    entropy at the start of expansion

  4. ((d))

    entropy at the end of evaporation 

Show Answer
Answer: ((a))

entropy at the end of expansion 

117

A cooling system is essentially required in internal combustion engines to _______. 

  1. ((a))

    remove heat at a faster rate when engine is hot 

  2. ((b))

    remove heat at a faster rate when the engine is cool

  3. ((c))

    remove about 70% of heat generated in the combustion chamber

  4. ((d))

    keep the engine very hot or very cool

Show Answer
Answer: ((a))

remove heat at a faster rate when engine is hot 

118

In actual air - conditioning applications, the heat rejection factor depends upon the: 

  1. ((a))

    evaporator and condenser temperatures 

  2. ((b))

    rate of flow

  3. ((c))

    evaporator temperature

  4. ((d))

    condenser temperature

Show Answer
Answer: ((a))

evaporator and condenser temperatures 

119

Which of the following gas combination is commonly used in oxyfuel - gas welding? 

  1. ((a))

    Oxygen and H2

  2. ((b))

    Oxygen and acetylene

  3. ((c))

    Oxygen and Nitrogen

  4. ((d))

    Oxygen and CO2

Show Answer
Answer: ((a))

Oxygen and H2

120

Which of the following does NOT indicate that the refrigeration plant has to be charged with the refrigerant?

  1. ((a))

    Reduction in the efficiency of the plant

  2. ((b))

    High suction pressure 

  3. ((c))

    Short cycling of compressor

  4. ((d))

    Difficult to maintain temperature of rooms and holds 

Show Answer
Answer: ((a))

Reduction in the efficiency of the plant

121

Carbon steel contains a carbon percentage of about 0.21%. The possible type of carbon steel is ________ . 

  1. ((a))

    medium carbon steel

  2. ((b))

    alloy steel

  3. ((c))

    mild steel

  4. ((d))

    stainless steel

Show Answer
Answer: ((a))

medium carbon steel

122

Which of the following is NOT an example of Newtonian fluid?

  1. ((a))

    Kerosene 

  2. ((b))

    Water 

  3. ((c))

    Printer's ink

  4. ((d))

    Air

Show Answer
Answer: ((a))

Kerosene 

123

Which of the following statements is INCORRECT about the air pre-heater in a steam boiler?

  1. ((a))

    In the tubular type of air pre-heater, hot flue gases flow through the outside of the tubes of the air pre-heater.

  2. ((b))

    In the regenerative type of air pre-heater, heat from flue gases is transferred to air through an intermediate heat storage medium.

  3. ((c))

    Use of the air pre-heater leads to less atmospheric pollution.

  4. ((d))

    In the tubular type of air pre-heater, hot flue gases flow in the direction opposite to that of air travel. 

Show Answer
Answer: ((a))

In the tubular type of air pre-heater, hot flue gases flow through the outside of the tubes of the air pre-heater.

124

Which of the following is NOT a lathe turning operation?

  1. ((a))

    Threading 

  2. ((b))

    Sawing 

  3. ((c))

    Facing

  4. ((d))

    Grooving

Show Answer
Answer: ((a))

Threading 

125

In a hot working process, metals are deformed _______. 

  1. ((a))

    below their recrystallisation temperature

  2. ((b))

    above their recrystallisation temperature 

  3. ((c))

    at their recrystallisation temperature 

  4. ((d))

    at any recrystallisation temperature 

Show Answer
Answer: ((a))

below their recrystallisation temperature

126

The distance of the centre of pressure from the free surface of the liquid is independent of the:

  1. ((a))

    area exposed to the liquid

  2. ((b))

    density of liquid

  3. ((c))

    depth of the centre of gravity from the free surface

  4. ((d))

    moment of inertia about the centre of gravity

Show Answer
Answer: ((a))

area exposed to the liquid

127

The function of a halide torch is:

  1. ((a))

    detecting leakage of the refrigerant

  2. ((b))

    superheating the vapour refrigerant 

  3. ((c))

    defrosting of the cooling coil

  4. ((d))

    facilitating better lubrication in the refrigerator 

Show Answer
Answer: ((a))

detecting leakage of the refrigerant

128

The manometric head of a centrifugal pump is independent of which of the following factors? 

  1. ((a))

    Frictional losses in bearings

  2. ((b))

    Loss of head in impeller and casing

  3. ((c))

    Frictional head loss in delivery pipe 

  4. ((d))

    Frictional head loss in suction pipe 

Show Answer
Answer: ((a))

Frictional losses in bearings

129

The fluid that becomes less viscous as it is sheared harder is called _________. 

  1. ((a))

    pseudo-plastic fluid 

  2. ((b))

    dilatant fluid

  3. ((c))

    thixotropic fluid 

  4. ((d))

    Newtonian fluid

Show Answer
Answer: ((a))

pseudo-plastic fluid 

130

The casting process that employs a permanent metal or ceramic mould, is ________.

  1. ((a))

    die casting

  2. ((b))

    centrifugal casting

  3. ((c))

    sand casting

  4. ((d))

    investment casting

Show Answer
Answer: ((a))

die casting

131

Which of the following is the correct designation of the refrigerant CCl3F?

  1. ((a))

    R 12

  2. ((b))

    R 21

  3. ((c))

    R 11

  4. ((d))

    R 22 

Show Answer
Answer: ((a))

R 12

132

Which of the following is the assumption of Air Standard Cycles?

  1. ((a))

    Heat is assumed to be supplied from chemical reactions during the cycle 

  2. ((b))

    Some heat is assumed to be rejected to a constant low temperature sink

  3. ((c))

    The working medium has variable specific heat with varying temperature

  4. ((d))

    The working medium is assumed to be a real gas 

Show Answer
Answer: ((a))

Heat is assumed to be supplied from chemical reactions during the cycle 

133

Which of the following is NOT a part of a bucket type steam trap? 

  1. ((a))

    Injector

  2. ((b))

    Guide tube

  3. ((c))

    Spiral vane

  4. ((d))

    Float

Show Answer
Answer: ((a))

Injector

134

In a boiler test, the water supplied to a boiler per hour is 2250 kg. The mass of water in the boiler at the end of the one hour is found to be less than that at commencement by 250 kg. The coal burnt per hour is 250 kg. What will be the actual evaporation per kg of the fuel burnt of the boiler? 

  1. ((a))

    10 kg

  2. ((b))

    2500 kg

  3. ((c))

    8 kg

  4. ((d))

    250 kg

Show Answer
Answer: ((a))

10 kg

135

In the porter governor, the main constituent of controlling force is: 

  1. ((a))

    spring force

  2. ((b))

    mass of flyball

  3. ((c))

    friction force

  4. ((d))

    mass of sleeve

Show Answer
Answer: ((a))

spring force

136

Which of the following claims about the irreversibility of a system is true?

  1. ((a))

    Irreversible processes violate the first law of thermodynamics. 

  2. ((b))

    Irreversible processes increase the entropy of the system.

  3. ((c))

    Irreversible processes violate the zeroth law of thermodynamics. 

  4. ((d))

    Irreversible processes are always spontaneous

Show Answer
Answer: ((a))

Irreversible processes violate the first law of thermodynamics. 

137

The casting process that employs a wax pattern coated with a ceramic shell to make the mould, is ________.

  1. ((a))

    sand casting

  2. ((b))

    die casting

  3. ((c))

    centrifugal casting 

  4. ((d))

    investment casting

Show Answer
Answer: ((a))

sand casting

138

A complex geometry is placed in the X-Y plane. If the geometry is found to be symmetrical about the Y-axis, then which of the following is correct to calculate the centre of gravity? 

  1. ((a))

    Y co-ordinate is zero

  2. ((b))

    Z co-ordinate is a non-zero value

  3. ((c))

    X co-ordinate is zero 

  4. ((d))

    X co-ordinate is a non-zero value

Show Answer
Answer: ((a))

Y co-ordinate is zero

139

Total gradient line (or total energy line) is parallel to hydraulic gradient line with a vertical distance of _________. (The symbols have their usual meanings.) 

  1. ((a))

    (pW)+(v22 g)+z\left(\frac{\mathrm{p}}{\mathrm{W}}\right)+\left(\frac{\mathrm{v}^2}{2 \mathrm{~g}}\right)+\mathrm{z}

  2. ((b))

    (pW)+z\left(\frac{\mathrm{p}}{\mathrm{W}}\right)+\mathrm{z}

  3. ((c))

    v22g\frac{v^2}{2 g}

  4. ((d))

    pw\frac{\mathrm{p}}{\mathrm{w}}

Show Answer
Answer: ((a))

(pW)+(v22 g)+z\left(\frac{\mathrm{p}}{\mathrm{W}}\right)+\left(\frac{\mathrm{v}^2}{2 \mathrm{~g}}\right)+\mathrm{z}

140

Which of the following assertions related to drilling is true?

  1. ((a))

    Drilling is a process that uses a rotating tool to make a hole in a workpiece. 

  2. ((b))

    Drilling is a process that uses a non-rotating tool to make a hole in a workpiece.

  3. ((c))

    Drilling is a process that uses a saw to make a hole in a workpiece.

  4. ((d))

    Drilling is a process that uses a hammer to make a hole in a workpiece. 

Show Answer
Answer: ((a))

Drilling is a process that uses a rotating tool to make a hole in a workpiece. 

141

Which of the following is NOT a type of sawing? 

  1. ((a))

    Hack sawing

  2. ((b))

    Straight sawing

  3. ((c))

    Circular sawing

  4. ((d))

    Band sawing 

Show Answer
Answer: ((a))

Hack sawing

142

The distance of centre of pressure from free surface of liquid is independent of: 

  1. ((a))

    the density of liquid

  2. ((b))

    the moment of inertia

  3. ((c))

    the surface area

  4. ((d))

    the distance of C.G. from free surface of liquid

Show Answer
Answer: ((a))

the density of liquid

143

Which of the following evaporators are used for refrigeration units of 2 to 250 TR capacity?

  1. ((a))

    Flooded shell and tube evaporators

  2. ((b))

    Shell and coil evaporators

  3. ((c))

    Plate evaporators

  4. ((d))

    Dry expansion shell and tube evaporators

Show Answer
Answer: ((a))

Flooded shell and tube evaporators

144

Which of the following machines violates the Kelvin Planck’s statement? 

  1. ((a))

    Irreversible heat engine

  2. ((b))

    PMM1 

  3. ((c))

    PMM2 

  4. ((d))

    Reversible heat engine

Show Answer
Answer: ((a))

Irreversible heat engine

145

For measurement of dryness fraction of steam, use of a separating calorimeter is suitable _______. 

  1. ((a))

    when dryness fraction is greater than 0.95

  2. ((b))

    for any condition of steam

  3. ((c))

    when dryness fraction is greater than 1 

  4. ((d))

    when dryness fraction is less than 0.95

Show Answer
Answer: ((a))

when dryness fraction is greater than 0.95

146

The brake power of an engine can be measured by using a rope brake dynamometer. It is given by the expression: (Where, ‘D’ is diameter of the brake drum; ‘W’ is the weight and ‘S’ is the spring scale reading, ‘N’ Speed in rpm) 

  1. ((a))

    πDN (W + S) 

  2. ((b))

    πDN (W − S)

  3. ((c))

    DN (W + S)

  4. ((d))

    DN (W − S)

Show Answer
Answer: ((a))

πDN (W + S) 

147

The zeroth law of thermodynamics is based on the concept of _________. 

  1. ((a))

    temperature 

  2. ((b))

    heat capacity

  3. ((c))

    enthalpy 

  4. ((d))

    entropy 

Show Answer
Answer: ((a))

temperature 

148

What is the main benefit of double volute casing over single volute casing of a centrifugal pump?

  1. ((a))

    High efficiency

  2. ((b))

    High discharge

  3. ((c))

    Less power requirement

  4. ((d))

    Radial load balancing

Show Answer
Answer: ((a))

High efficiency

149

The maximum frictional force that comes in play when a body just begins to slide over the surface of another body is called:

  1. ((a))

    limiting friction

  2. ((b))

    dynamic friction

  3. ((c))

    static friction

  4. ((d))

    kinetic friction

Show Answer
Answer: ((a))

limiting friction

150

Which of the following statements is true about the fuel feed pump used for diesel engines?

  1. ((a))

    When the plunger of the feed pump is lifted upwards, the inlet valve remains open. Therefore, it is not suitable to inject fuel at that time.

  2. ((b))

    The plunger of the fuel feed pump is actuated by the governor. 

  3. ((c))

    It is a centrifugal type pump. 

  4. ((d))

    It is a spring-loaded, plunger type reciprocating pump. 

Show Answer
Answer: ((a))

When the plunger of the feed pump is lifted upwards, the inlet valve remains open. Therefore, it is not suitable to inject fuel at that time.

151

Which of the following is used to increase the temperature of steam above its saturation temperature?

  1. ((a))

    Superheater 

  2. ((b))

    Economiser

  3. ((c))

    Air pre-heater

  4. ((d))

    Steam dryer

Show Answer
Answer: ((a))

Superheater 

152

In which of the following areas is supercharging NOT so important? 

  1. ((a))

    Domestic bikes

  2. ((b))

    Racing cars

  3. ((c))

    Engines working at high altitudes

  4. ((d))

    Marine and automotive engines where weight and space are important

Show Answer
Answer: ((a))

Domestic bikes

153

Which of the following statements is true about quantity governing? 

  1. ((a))

    The mixture strength remains the same with variation in the speed of the engine.

  2. ((b))

    This method is mostly preferred for diesel engines.

  3. ((c))

    Due to quantity governing, the engine efficiency is altered.

  4. ((d))

    The compression ratio varies with charge supplied. 

Show Answer
Answer: ((a))

The mixture strength remains the same with variation in the speed of the engine.

154

If N is the speed of the compressor in RPM, then what will be the isentropic power for a double acting compressor? Where W = work required by the compressor. 

  1. ((a))

    WN 

  2. ((b))

    WN/60

  3. ((c))

    WN/2

  4. ((d))

    2WN/60 

Show Answer
Answer: ((a))

WN 

155

Which of the following is correct for Pelton wheel?

Where, α & β = guide blade angle at inlet and outlet, respectively

ϴ & ɸ = vane angle at inlet and outlet, respectively

  1. ((a))

    α =0° and ϴ = 0°

  2. ((b))

    β =0° and ɸ = 0°

  3. ((c))

    α =0° and β = 0° 

  4. ((d))

    α =0° and ɸ = 0° 

Show Answer
Answer: ((a))

α =0° and ϴ = 0°

156

In a milling machine, bulky workpieces of irregular shapes are clamped directly on the milling machine table by using ________. 

  1. ((a))

    angle plates

  2. ((b))

    swivel vise

  3. ((c))

    T-bolts and clamps 

  4. ((d))

    V-blocks

Show Answer
Answer: ((a))

angle plates

157

Which of the following statements is correct about the location of centre of pressure? 

  1. ((a))

    Centre of pressure lies above the centre of gravity of the vertically immersed surface.

  2. ((b))

    Centre of pressure may lie at any location irrespective of the centre of gravity of the vertically immersed surface. 

  3. ((c))

    Centre of pressure coincides with the centre of gravity of the vertically immersed surface. 

  4. ((d))

    Centre of pressure lies below the centre of gravity of the vertically immersed surface.

Show Answer
Answer: ((a))

Centre of pressure lies above the centre of gravity of the vertically immersed surface.

158

What will be the power lost in friction assuming uniform pressure theory, when a vertical shaft of 100 mm diameter rotating at 150 r.p.m. rests on a flat end foot step bearing? The coefficient of friction is equal to 0.05 and the shaft carries a vertical load of 15 KN.

  1. ((a))

    39.27 KW 

  2. ((b))

    392.7 KW 

  3. ((c))

    392.7 W 

  4. ((d))

    39.27 W

Show Answer
Answer: ((a))

39.27 KW 

159

For the laminar flow through circular pipes, shear stress distribution across a section is _________ .

  1. ((a))

    logarithmic 

  2. ((b))

    cubic 

  3. ((c))

    parabolic 

  4. ((d))

    linear 

Show Answer
Answer: ((a))

logarithmic 

160

Determine the stress induced in the steel bars of reinforced concrete structure, if the modular ratio for steel and concrete is 14.5 and the stress applied on the concrete is 2.5 MPa. 

  1. ((a))

    36.25 MPa

  2. ((b))

    24.50 MPa

  3. ((c))

    42.75 MPa

  4. ((d))

    30.25 MPa 

Show Answer
Answer: ((a))

36.25 MPa

161

When pressure is measured above the atmospheric pressure, it is termed as:

  1. ((a))

    vacuum pressure

  2. ((b))

    gauge pressure

  3. ((c))

    stagnation pressure

  4. ((d))

    absolute pressure

Show Answer
Answer: ((a))

vacuum pressure

162

Which of the following statements best describes the second law of thermodynamics in relation to cyclic heat and work processes? 

  1. ((a))

    In a cyclic process, the net heat transfer is always less than the net work done. 

  2. ((b))

    In a cyclic process, the net heat transfer is equal to the net work done. 

  3. ((c))

    In a cyclic process, the net work output can be equal to, greater than or less than the net heat input, depending on the efficiency of the process. 

  4. ((d))

    In a cyclic process, the net heat transfer is always greater than the net work done

Show Answer
Answer: ((a))

In a cyclic process, the net heat transfer is always less than the net work done. 

163

Name the welding defect in which we observe a long and continuous visual separation line between the base metal and the heat affected zone. 

  1. ((a))

    Incomplete fusion

  2. ((b))

    Lamellar tearing

  3. ((c))

    Hot cracking 

  4. ((d))

    Undercut 

Show Answer
Answer: ((a))

Incomplete fusion

164

Which of the following impellers are best suited to medium sized pumps with a small amount of soft solids?

  1. ((a))

    Semi-open impellers

  2. ((b))

    Semi-closed impellers

  3. ((c))

    Open impellers

  4. ((d))

    Closed impellers

Show Answer
Answer: ((a))

Semi-open impellers

165

If the power output of a hydraulic turbine is 100 kW and overall efficiency is 50%, then what will be the power supplied at the inlet of the turbine? 

  1. ((a))

    150 kW

  2. ((b))

    250 kW

  3. ((c))

    200 kW 

  4. ((d))

    50 kW 

Show Answer
Answer: ((a))

150 kW

166

Which of the following is NOT a frequent pattern-making process in manufacturing? 

  1. ((a))

    Match plate pattern

  2. ((b))

    Investment pattern

  3. ((c))

    Welding pattern

  4. ((d))

    Sweep pattern

Show Answer
Answer: ((a))

Match plate pattern

167

What will be the value of the axial thrust on a wheel when there is no blade friction?

  1. ((a))

    Equal to the tangential force on the blade

  2. ((b))

    Minimum 

  3. ((c))

    Zero

  4. ((d))

    Maximum

Show Answer
Answer: ((a))

Equal to the tangential force on the blade

168

In the process of brazing, the filler metal is drawn into the joint by means of ________.

  1. ((a))

    Surface tension

  2. ((b))

    High diffusion 

  3. ((c))

    Low viscosity

  4. ((d))

    Capillary action

Show Answer
Answer: ((a))

Surface tension

169

Which of the following statements is true about an SI engine in comparison to a CI engine?

  1. ((a))

    The compression ratio is comparatively high. 

  2. ((b))

    The air-fuel ratio is high.

  3. ((c))

    The cost of running is comparatively low. 

  4. ((d))

    The operating speed is very high.

Show Answer
Answer: ((a))

The compression ratio is comparatively high. 

170

The Kaplan turbine is an example of _________ . 

  1. ((a))

    mixed-flow turbine

  2. ((b))

    tangential flow turbine

  3. ((c))

    radial flow turbine

  4. ((d))

    axial flow turbine 

Show Answer
Answer: ((a))

mixed-flow turbine

171

Under which of the following conditions does the Francis turbine operate?

  1. ((a))

    Low head and high discharge

  2. ((b))

    Medium head and medium discharge

  3. ((c))

    High head and low discharge

  4. ((d))

    High head and high discharge

Show Answer
Answer: ((a))

Low head and high discharge

172

Which of the following options is correct about four-stroke engines when compared with two-stroke engines?

  1. ((a))

    The thermodynamic cycle is completed in two strokes of the piston or in one revolution of the crankshaft.

  2. ((b))

    Thermal efficiency is higher.

  3. ((c))

    Light weight and simplicity due to absence of the valve actuating mechanism, with the initial cost of the engine being low

  4. ((d))

    Lower volumetric efficiency due to lesser time taken for mixture intake

Show Answer
Answer: ((a))

The thermodynamic cycle is completed in two strokes of the piston or in one revolution of the crankshaft.

173

Enthalpy of a system in an open flow is given by h = u + pv, where pv is the _________. 

  1. ((a))

    momentum energy

  2. ((b))

    external work 

  3. ((c))

    moving boundary work

  4. ((d))

    flow work

Show Answer
Answer: ((a))

momentum energy

174

 In the battery ignition system for SI engines, with increase in the speed, the ________.

  1. ((a))

    sparking voltage remains the same 

  2. ((b))

    sparking voltage drops

  3. ((c))

    sparking voltage increases

  4. ((d))

    sparking voltage first increases and then becomes constant

Show Answer
Answer: ((a))

sparking voltage remains the same 

175

The heat rejection in Stirling cycle takes place at: 

  1. ((a))

    constant enthalpy

  2. ((b))

    constant temperature

  3. ((c))

    constant volume

  4. ((d))

    constant pressure 

Show Answer
Answer: ((a))

constant enthalpy

176

If a point is to be at the free surface of a liquid open to the atmosphere, where the pressure is the atmospheric pressure Patm, then the gauge pressure at a depth ‘h’ from the free surface becomes:

  1. ((a))

    Pgauge = ρgh

  2. ((b))

    Pgauge = Patm

  3. ((c))

    Pgauge = Patm - ρgh

  4. ((d))

    Pgauge = Patm + ρgh

Show Answer
Answer: ((a))

Pgauge = ρgh

177

 The mist lubrication system is generally used for _____.

  1. ((a))

    four stroke cycle engine

  2. ((b))

    gas engine

  3. ((c))

    two stroke cycle engine

  4. ((d))

    air refrigeration cycle engine 

Show Answer
Answer: ((a))

four stroke cycle engine

178

Which of the following factors is taken into consideration when determining the maximum suction height of a centrifugal pump?

  1. ((a))

    Priming 

  2. ((b))

    Manometric efficiency

  3. ((c))

    Cavitation 

  4. ((d))

    Mechanical efficiency 

Show Answer
Answer: ((a))

Priming 

179

A sample of an ideal gas is compressed isothermally from volume of 4 l to 2 l. If the initial pressure is 2 atm, what is the final pressure? 

  1. ((a))

    8 atm

  2. ((b))

    4 atm

  3. ((c))

    2 atm 

  4. ((d))

    1 atm

Show Answer
Answer: ((a))

8 atm

180

Which part of the arc welding element/equipment is consumable? 

  1. ((a))

    Electrode

  2. ((b))

    Electrode holder

  3. ((c))

    AC/DC transformer

  4. ((d))

    Electrical cables

Show Answer
Answer: ((a))

Electrode

181

If there is flow of real fluid at fixed boundary, then no-slip condition: 

  1. ((a))

    may or may not occur

  2. ((b))

    depends on the type of flow 

  3. ((c))

    occurs

  4. ((d))

    does not occur 

Show Answer
Answer: ((a))

may or may not occur

182

The overall efficiency of the turbine is given by: 

  1. ((a))

    overall efficiency = mechanical efficiency / hydraulic efficiency  

  2. ((b))

    overall efficiency = mechanical efficiency2 / hydraulic efficiency2

  3. ((c))

    overall efficiency = hydraulic efficiency / mechanical efficiency

  4. ((d))

    overall efficiency = hydraulic efficiency × mechanical efficiency

Show Answer
Answer: ((a))

overall efficiency = mechanical efficiency / hydraulic efficiency  

183

Isochronism in a governor is desirable when _____.

  1. ((a))

    the engine operates at high speeds

  2. ((b))

    one speed is desired under one load

  3. ((c))

    the engine is just getting started 

  4. ((d))

    the engine operates at low speeds 

Show Answer
Answer: ((a))

the engine operates at high speeds

184

The mass transfer process in an open system is commonly modelled using the ______ equation. 

  1. ((a))

    zeroth law of thermodynamics

  2. ((b))

    mass balance 

  3. ((c))

    second law of thermodynamics

  4. ((d))

    third law of thermodynamics 

Show Answer
Answer: ((a))

zeroth law of thermodynamics

185

Which of the following prevents the high-pressure vapour refrigerant from flowing back to the evaporator in rotating blade type rotary compressor? 

  1. ((a))

    Check valve

  2. ((b))

    Safety valve

  3. ((c))

    Throttling valve

  4. ((d))

    Pressure valve

Show Answer
Answer: ((a))

Check valve

186

A cyclic heat engine takes 40 kJ of heat from a 100°C temperature reservoir. If it gives 40 kJ of work, then which of the following statements is correct? 

  1. ((a))

    The engine violates the Clausius statement.

  2. ((b))

    The engine violates 1st law of thermodynamics as well as Kelvin Planck’s statement. 

  3. ((c))

    The engine violates the 1st law of thermodynamics

  4. ((d))

    The engine violates the Kelvin Planck’s statement 

Show Answer
Answer: ((a))

The engine violates the Clausius statement.

187

Which of the following statements is true about hit and miss governing?

  1. ((a))

    This method of governing requires higher weight of flywheel. 

  2. ((b))

    In this method of governing, none of the cycles should be idle throughout the running of engine.

  3. ((c))

    It increases the efficiency of engine.

  4. ((d))

    It is a suitable governing method for heavy IC engines.

Show Answer
Answer: ((a))

This method of governing requires higher weight of flywheel. 

188

Calculate the polar moment of inertia and the maximum torque transmitted by a solid shaft of diameter 100 mm and length 1.0 m. Let the angle of twist be 2° and the modulus of rigidity, G = 80 GPa. 

  1. ((a))

    9.817 × 106 mm4, 27.409 kN - m

  2. ((b))

    7.982 × 106 mm4, 31.542 kN - m

  3. ((c))

    10.654 × 106 mm4, 23.525 kN - m

  4. ((d))

    8.675 × 106 mm4, 45.500 kN - m

Show Answer
Answer: ((a))

9.817 × 106 mm4, 27.409 kN - m

189

The heat transfer during constant pressure heating of a gas in a cylinder containing a sliding piston is equal to _______.

  1. ((a))

    the change in internal energy

  2. ((b))

     zero

  3. ((c))

    the change in enthalpy

  4. ((d))

    the work done by the piston 

Show Answer
Answer: ((a))

the change in internal energy

190

A closed system undergoes a cycle consisting of two processes. Process 1 - 2 is an isothermal expansion whereas Process 2 - 1 is an isentropic compression. According to the first law of thermodynamics, which of the following statements is true for this cycle?

  1. ((a))

    Heat transfer during Process 1 - 2 is zero.

  2. ((b))

    Heat transfer during Process 2 - 1 is zero.

  3. ((c))

    Work done during Process 1 - 2 is zero.

  4. ((d))

    Work done during Process 2 - 1 is zero.

Show Answer
Answer: ((a))

Heat transfer during Process 1 - 2 is zero.

191

Which of the following statements is INCORRECT about no slip boundary condition?

  1. ((a))

    During no slip condition the fluid velocity at all fluid–solid boundaries is equal to that of the solid boundary. 

  2. ((b))

    The no slip condition can be defined for viscous flows. 

  3. ((c))

    In case of the no slip boundary condition at a fixed solid boundary, the fluid will have some velocity relative to the boundary.

  4. ((d))

    In case of the no slip boundary condition at a fixed solid boundary, the fluid will have zero velocity. 

Show Answer
Answer: ((a))

During no slip condition the fluid velocity at all fluid–solid boundaries is equal to that of the solid boundary. 

192

In which of the following compressors, the top cover is bolted to the compressor housing instead of the welded steel shell? 

  1. ((a))

    Open compressor

  2. ((b))

    Axial compressor

  3. ((c))

    Hermetic sealed compressor

  4. ((d))

    Semi-hermetic sealed compressor 

Show Answer
Answer: ((a))

Open compressor

193

For the H-S diagram of a vapour compression refrigeration cycle, the specific enthalpy of the refrigerant coming out from the compressor ________. 

  1. ((a))

    may increase or decrease

  2. ((b))

    remains constant

  3. ((c))

    increases 

  4. ((d))

    decreases

Show Answer
Answer: ((a))

may increase or decrease

194

A drill bit of diameter 25 mm has cutting speed of 15.7 m/min. What is the speed of rotation of drill? 

  1. ((a))

    200 RPM

  2. ((b))

    500 RPM 

  3. ((c))

    400 RPM

  4. ((d))

    314 RPM 

Show Answer
Answer: ((a))

200 RPM

195

Which of the following statements are correct regarding the characteristics of Entropy?

  1. It increases when heat is supplied irrespective of the fact whether temperature changes or not.

  2. It decreases when heat is removed whether temperature changes or not.

  3. It remains unchanged in all adiabatic frictionless processes.

  4. It increases if temperature of heat is lowered without work being done as in a throttling process.

  1. ((a))

    Only 1, 3 and 4

  2. ((b))

    Only 1, 2 and 3

  3. ((c))

    1, 2, 3 and 4

  4. ((d))

    Only 2, 3 and 4

Show Answer
Answer: ((a))

Only 1, 3 and 4

196

In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be:

  1. ((a))

    more sensitive

  2. ((b))

    insensitive 

  3. ((c))

    less sensitive 

  4. ((d))

    Isochronous 

Show Answer
Answer: ((a))

more sensitive

197

The volumetric efficiency of a single-stage reciprocating air compressor is the ratio of the:

  1. ((a))

    swept volume to the effective swept volume

  2. ((b))

    displacement of the compressor to the free air delivered

  3. ((c))

    free air delivered to the displacement of the compressor

  4. ((d))

    swept volume to the clearance volume

Show Answer
Answer: ((a))

swept volume to the effective swept volume

198

The Kelvin-Planck statement of the Second Law states that ________. 

  1. ((a))

    it is impossible to convert all the heat absorbed from a single reservoir into work

  2. ((b))

    heat cannot flow spontaneously from a colder body to a hotter body 

  3. ((c))

    work can be converted completely into heat 

  4. ((d))

    it is possible to convert all the heat absorbed from a single reservoir into work

Show Answer
Answer: ((a))

it is impossible to convert all the heat absorbed from a single reservoir into work

199

If h1 and h2 are enthalpies at the inlet and the outlet, respectively and C1 and C2 are inlet and outlet velocities, respectively, then which of the following statements is

INCORRECT about the equation (c22−c122=h1−h2)\left(\frac{c_2{ }^2-c_1{ }^2}{2}=h_1-h_2\right) for steam nozzles?

  1. ((a))

    The flow is adiabatic in steam nozzles.

  2. ((b))

    The equation considers frictional losses in the steam nozzle. 

  3. ((c))

    The equation is the steady flow energy equation for steam nozzles

  4. ((d))

    There is no mechanical work done by the steam nozzle.

Show Answer
Answer: ((a))

The flow is adiabatic in steam nozzles.

200

Which of the following is the effect of frictional resistance to the flow of the steam jet over the blade in steam turbines?

  1. ((a))

    There is no effect of frictional resistance to the flow of the steam jet over the blade.

  2. ((b))

    The velocity of flow at the outlet to the moving blade is less than that of flow at the inlet to the moving blade. 

  3. ((c))

    The velocity of flow at the outlet to the moving blade is greater than that of flow at the inlet to the moving blade.

  4. ((d))

    The velocity of flow at the outlet to the moving blade is equal to that of flow at the inlet to the moving blade

Show Answer
Answer: ((a))

There is no effect of frictional resistance to the flow of the steam jet over the blade.

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