Official Paper

RRB ALP Fitter 23 Jan 2019 Official Paper (Shift 3) (Previous Year Paper)

175 questions · 150 minutes · with answers · free

Attempt as Timed Mock Test

Part A (100 questions)

1

Name the scientist who discovered bacteria ?

  1. ((a))

    Robert Koch

  2. ((b))

    James Chadwick

  3. ((c))

    Eugen Goldstein

  4. ((d))

    A V Leeuwenhoek

Show Answer
Answer: ((a))

Robert Koch

2

If a body has a specific gravity of less than 1, then it will float in/on ___________.

  1. ((a))

    air

  2. ((b))

    water

  3. ((c))

    liquids

  4. ((d))

    mercury

Show Answer
Answer: ((a))

air

3

Which of the following options does not have an SI base unit?

  1. ((a))

    Amount of substance

  2. ((b))

    Frequency

  3. ((c))

    Luminous intensity

  4. ((d))

    Electric current

Show Answer
Answer: ((a))

Amount of substance

4

How many medals did India win in Rio Olympics, 2016?

  1. ((a))

    3

  2. ((b))

    4

  3. ((c))

    2

  4. ((d))

    5

Show Answer
Answer: ((a))

3

5

It is mainly due to the gravitational effect of the __________ on the rotating earth that the level of water in the sea rises and falls.

  1. ((a))

    Venus

  2. ((b))

    Mercury

  3. ((c))

    Moon

  4. ((d))

    Sun

Show Answer
Answer: ((a))

Venus

6

Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V battery. Find the current in the 6Ω resistor.

  1. ((a))

    3.5 A

  2. ((b))
    1. 5 A
  3. ((c))

    0.5 A

  4. ((d))

    2.5 A

Show Answer
Answer: ((a))

3.5 A

7

Substances that are broken down by biological processes are said to be _________.

  1. ((a))

    reusable

  2. ((b))

    non-biodegradabl

  3. ((c))

    non-reusable

  4. ((d))

    biodegradable

Show Answer
Answer: ((a))

reusable

8

A software program that has been developed to harm other computers is called a/an _________.

  1. ((a))

    server

  2. ((b))

    LAN

  3. ((c))

    malware

  4. ((d))

    operating system

Show Answer
Answer: ((a))

server

9

Kuchipudi has its roots in which Indian State?

  1. ((a))

    Arunachal Pradesh

  2. ((b))

    Kerala

  3. ((c))

    Andhra Pradesh

  4. ((d))

    Himachal Pradesh

Show Answer
Answer: ((a))

Arunachal Pradesh

10

Which Indian cricketer received the Padma Bhushan in 2018?

  1. ((a))

    MS Dhoni

  2. ((b))

    Virat Kohli

  3. ((c))

    Sachin Tendulkar

  4. ((d))

    Saurav Ganguly

Show Answer
Answer: ((a))

MS Dhoni

11

JPEG stands for __________.

  1. ((a))

    Joint Program Experts Group

  2. ((b))

    Joint Program Executing Group

  3. ((c))

    Joint Photographic Experts Group

  4. ((d))

    Joint Program Experimental Group.

Show Answer
Answer: ((a))

Joint Program Experts Group

12

Two resistors, one of 12 Ω and the other of 24 Ω are connected in parallel. This combination is connected in series with a 22 Ω resistor and a 12 V battery. The current in the 12 Ω resistor is __________.

  1. ((a))

    (8/15) A

  2. ((b))

    (2/15) A

  3. ((c))

    (6/15) A

  4. ((d))

    (4/15) A

Show Answer
Answer: ((a))

(8/15) A

13

RK Narayan is famous for his book ___________.

  1. ((a))

    The Room on the Roof

  2. ((b))

    Two Livers

  3. ((c))

    Malgudi Days

  4. ((d))

    A suitable Boy

Show Answer
Answer: ((a))

The Room on the Roof

14

_________ protection must be worn whenever noise levels exceed the noise exposure standard.

  1. ((a))

    Hearing

  2. ((b))

    Head

  3. ((c))

    Eye

  4. ((d))

    Foot

Show Answer
Answer: ((a))

Hearing

15

A wire of length 1 and radius r has a resistance R. The resistance of another wire made of the same material but having half its length and half its radius will be.

  1. ((a))

    4R

  2. ((b))

    R/2

  3. ((c))

    2R

  4. ((d))

    R

Show Answer
Answer: ((a))

4R

16

Safety boots or shoes must be worn in designated areas to protect your _______  from falling objects.

  1. ((a))

    eye

  2. ((b))

    ear

  3. ((c))

    head

  4. ((d))

    feet

Show Answer
Answer: ((a))

eye

17

A cylindrical wire of length L and radius r has a resistance of R. The resistance of another wire of the same material but thrice its length and one-third its radius will be __________.

  1. ((a))

    27R

  2. ((b))

    9R

  3. ((c))

    R

  4. ((d))

    3R

Show Answer
Answer: ((a))

27R

18

If a body is NOT homogeneous, then its density is a function of its ___________.

  1. ((a))

    pressure

  2. ((b))

    acceleration

  3. ((c))

    position

  4. ((d))

    velocity

Show Answer
Answer: ((a))

pressure

19

Two resistors of 10Ω and 20 Ω area connected in series and this combination is connected across a 30 V supply voltage. Find the voltage across the 10 Ω resistor.

  1. ((a))

    20 V

  2. ((b))

    10 V

  3. ((c))

    5 V

  4. ((d))

    15 V

Show Answer
Answer: ((a))

20 V

20

Which one of these is a harvest festival? 

  1. ((a))

    Teej

  2. ((b))

    Janmashtami

  3. ((c))

    Deepawali

  4. ((d))

    Onam

Show Answer
Answer: ((a))

Teej

21

86°F is equal to __________

  1. ((a))

    20°C

  2. ((b))

    30°C

  3. ((c))

    34°C

  4. ((d))

    10°C

Show Answer
Answer: ((a))

20°C

22

Where is the Headquarters of UNESCO located?

  1. ((a))

    New York City

  2. ((b))

    Geneva

  3. ((c))

    Paris

  4. ((d))

    Washington DC

Show Answer
Answer: ((a))

New York City

23

Name of the painter of famous painting, ‘Mahishasura’.

  1. ((a))

    MF Hussain

  2. ((b))

    Amrita Sher-Gil

  3. ((c))

    Raja Ravi Verma

  4. ((d))

    Tyeb Mehta

Show Answer
Answer: ((a))

MF Hussain

24

What is the work that needs to be done to increase the speed of a 1 kg ball from 2 m/s to 4 m/s?

  1. ((a))

    8 J

  2. ((b))

    10 J

  3. ((c))

    6 J

  4. ((d))

    12 J

Show Answer
Answer: ((a))

8 J

25

The Ajanta Caves in Maharashtra feature paintings and sculptures that depict __________ tales.

  1. ((a))

    Arabic

  2. ((b))

    Islamic

  3. ((c))

    Buddhist

  4. ((d))

    Maratha

Show Answer
Answer: ((a))

Arabic

26

The volume of a given amount of water ________ between 0°C to 4°C.

  1. ((a))

    is zero

  2. ((b))

    decreases

  3. ((c))

    remains constant

  4. ((d))

    increases

Show Answer
Answer: ((a))

is zero

27

Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V  bettery. Find the power supplied by the battery.

  1. ((a))

    10 W

  2. ((b))

    18 W

  3. ((c))

    16 W

  4. ((d))

    14 W

Show Answer
Answer: ((a))

10 W

28

An object weighs X units on the earth. If we take the same object to the moon, its weight there will be ________.

  1. ((a))

    zero

  2. ((b))

    less than X

  3. ((c))

    equal to X

  4. ((d))

    more than X

Show Answer
Answer: ((a))

zero

29

A body starts from rest. Its displacement is proportional to _________ when its acceleration is constant.

  1. ((a))

    time squared

  2. ((b))

    velocity

  3. ((c))

    work

  4. ((d))

    time

Show Answer
Answer: ((a))

time squared

30

A source of voltage V maintains a current i in a circuit. The energy supplied to the circuit by the source in time t is __________.

  1. ((a))

    Vit

  2. ((b))

    1/Vit

  3. ((c))

    Vi/t

  4. ((d))

    V/it

Show Answer
Answer: ((a))

Vit

31

Who was the first governor of the Reserve Bank of India?

  1. ((a))

    Sir James Braid Taylor

  2. ((b))

    KR Puri

  3. ((c))

    HVR Iyengar

  4. ((d))

    Sir Osborne A Smith

Show Answer
Answer: ((a))

Sir James Braid Taylor

32

A car covers 400 m in 20 seconds. Find the average speed (in km/hr) of the car. 

  1. ((a))

    72

  2. ((b))

    124

  3. ((c))

    108

  4. ((d))

    36

Show Answer
Answer: ((a))

72

33

If sin θ = 15/17, then cot θ = ? 

  1. ((a))

    815\frac{8}{{15}}

  2. ((b))

    817\frac{8}{{17}}

  3. ((c))

    158\frac{{15}}{8}

  4. ((d))

    1715\frac{{17}}{{15}}

Show Answer
Answer: ((a))

815\frac{8}{{15}}

34

In an examination, the highest score and the lowest score are different by 55 and the higher one was 9/4 times the lower one. Find the lowest score.

  1. ((a))

    40  

  2. ((b))

    36

  3. ((c))

    44

  4. ((d))

    48

Show Answer
Answer: ((a))

40  

35

A number is as much greater than 50 as it is lesser than 84. What is the number?

  1. ((a))

    65

  2. ((b))

    66

  3. ((c))

    68

  4. ((d))

    67

Show Answer
Answer: ((a))

65

36

If x=125×30×6x = \sqrt {125} \times \sqrt {30} \times \sqrt 6  ,  then x is equal to:

  1. ((a))

    175

  2. ((b))

    125

  3. ((c))

    136

  4. ((d))

    150

Show Answer
Answer: ((a))

175

37

A got Rs. 80 as his share of profit where the total profit was Rs. 240 and the ratio of profit distribution between A and B was x : 2. What is the value of x? 

  1. ((a))

    1

  2. ((b))

    4

  3. ((c))

    2

  4. ((d))

    5

Show Answer
Answer: ((a))

1

38

What is the median of 8, 5, 7, 9, 11, 6, 10?

  1. ((a))

    9

  2. ((b))

    8

  3. ((c))

    10

  4. ((d))

    7

Show Answer
Answer: ((a))

9

39

If 5050 × 0.5x = 25250, then 2505 ÷ x2 = ?

  1. ((a))

    0.2505

  2. ((b))

    25.05

  3. ((c))

    2.505

  4. ((d))

    250.5

Show Answer
Answer: ((a))

0.2505

40

An article of marked price Rs. 12000 was sold. Had a discount of 15% been offered, a profit of 2% would have been made. What was the cost price?

  1. ((a))

    Rs. 10,200

  2. ((b))

    Rs. 10,000

  3. ((c))

    Rs. 11,000

  4. ((d))

    Rs. 10,800

Show Answer
Answer: ((a))

Rs. 10,200

41

A sum of Rs. 2,000 was spent in buying a pair of trousers. The sum spent was 2/5th of the total money Shashi had with her. How much was the total money she had?

  1. ((a))

    Rs. 4,000

  2. ((b))

    Rs. 4, 250 

  3. ((c))

    Rs. 4, 750

  4. ((d))

    Rs. 5,000 

Show Answer
Answer: ((a))

Rs. 4,000

42

A machine was bought for Rs. 1,500 and a repairing charge of Rs. 100 was paid afterwards. At what price should it be sold to gain a profit of 25%?

  1. ((a))

    Rs. 2,040

  2. ((b))

    Rs. 1,960

  3. ((c))

    Rs. 2,000

  4. ((d))

    Rs. 1, 920

Show Answer
Answer: ((a))

Rs. 2,040

43

In angular measurement, one radian is equivalent to ________ degree (approximately).

  1. ((a))

    65.27

  2. ((b))

    57.27

  3. ((c))

    90

  4. ((d))

    180

Show Answer
Answer: ((a))

65.27

44

A and B can do a work in 15 days. B and C can do the work in 20 days and A and C can do the work in 10 days. In how many days will they together completed the work?

  1. ((a))

    10.67 days

  2. ((b))

    10.91 days

  3. ((c))

    10.71 days

  4. ((d))

    9.23 days

Show Answer
Answer: ((a))

10.67 days

45

Pipes A and B can fill a tank in 12 minutes and 16 minutes respectively. Both A and B are opened for 4 minutes and then A is closed. How much extra time will B take to fill the tank completely?

  1. ((a))

    203\frac{{20}}{3} minutes

  2. ((b))

    7 minutes

  3. ((c))

    214\frac{{21}}{4} minutes

  4. ((d))

    6 minutes

Show Answer
Answer: ((a))

203\frac{{20}}{3} minutes

46

A can do 2/5 of a work in 10 days. B can do ½ of the some work in 10 days. They worked together for 5 days and then A left. In how many days will B finish the remaining work?

  1. ((a))

    8

  2. ((b))

    10

  3. ((c))

    11

  4. ((d))

    9

Show Answer
Answer: ((a))

8

47

Reflection of point (-2, -6) on the Y-axis is:

  1. ((a))

    (2, 6)

  2. ((b))

    (-6, -2)

  3. ((c))

    (-2, 6)

  4. ((d))

    (2, -6)

Show Answer
Answer: ((a))

(2, 6)

48

The pie chart shows the breakup in percentage of the various expenses of a Company. Study the diagram and answer the following question. 

What is the interest expense if total expenses is Rs. 25000.

  1. ((a))

    Rs. 2, 500

  2. ((b))

    Rs. 1, 800

  3. ((c))

    Rs. 9, 000

  4. ((d))

    Rs. 5, 000

Show Answer
Answer: ((a))

Rs. 2, 500

49

A motorcycle travelled 1000 m at 36 km/hr. Find the time (in seconds) taken by the motorcycle to cover this distance.

  1. ((a))

    300

  2. ((b))

    100

  3. ((c))

    400

  4. ((d))

    200

Show Answer
Answer: ((a))

300

50

A 4-digit number 1xy7 is divisible by 11. What is the value of x - y?

  1. ((a))

    -8

  2. ((b))

    -2

  3. ((c))

    -4

  4. ((d))

    -6

Show Answer
Answer: ((a))

-8

51

Tap M and N can together fill a cistern in 48/13 minutes. N alone can fill it in 6 minutes. How much time will M alone take to fill the cistern?

  1. ((a))

    9.6 minutes

  2. ((b))

    9 minutes

  3. ((c))

    9.4 minutes

  4. ((d))

    8.6 minutes

Show Answer
Answer: ((a))

9.6 minutes

52

What is the curved surface area of a hemisphere whose radius is 7 cm? (take π = 22/7)

  1. ((a))

    616 cm2

  2. ((b))

    154 cm2

  3. ((c))

    308 cm2

  4. ((d))

    924 cm2

Show Answer
Answer: ((a))

616 cm2

53

An airplane flies at the speed of 50 m/s. How much distance (in km) will it cover in a flight of 5 hours?

  1. ((a))

    895

  2. ((b))

    850

  3. ((c))

    880

  4. ((d))

    900

Show Answer
Answer: ((a))

895

54

What is the distance between the points (4, 3) and (3, -2)?

  1. ((a))

    26\sqrt {26}

  2. ((b))

    24\sqrt {24}

  3. ((c))

    6

  4. ((d))

    5

Show Answer
Answer: ((a))

26\sqrt {26}

55

sec 45° - tan 60° = ? 

  1. ((a))

    −3+2 - \sqrt 3 + \sqrt 2

  2. ((b))

    −3−2 - \sqrt 3 - \sqrt 2

  3. ((c))

    32\frac{{\sqrt 3 }}{2}

  4. ((d))

    3+2\sqrt 3 + \sqrt 2

Show Answer
Answer: ((a))

−3+2 - \sqrt 3 + \sqrt 2

56

What is the least number which when doubled is perfectly divisible by 7, 12 and 15? 

  1. ((a))

    420

  2. ((b))

    210

  3. ((c))

    214

  4. ((d))

    220

Show Answer
Answer: ((a))

420

57

A sum of Rs. 10,000 amounts to Rs. 11, 449 in 2 years, when the interest is compounded annually. The interest rate percent per annum is:

  1. ((a))

    6%

  2. ((b))

    1%

  3. ((c))

    7%

  4. ((d))

    8%

Show Answer
Answer: ((a))

6%

58

The ages of X and Y are in the ratio 4 : 7. Three years earlier, the ratio of their ages was 1 : 2. What is the difference between their current ages (Y - X)?

  1. ((a))

    3

  2. ((b))

    6

  3. ((c))

    9

  4. ((d))

    7.5

Show Answer
Answer: ((a))

3

59

What is 80% of 50% of 90?

  1. ((a))

    30

  2. ((b))

    34

  3. ((c))

    32

  4. ((d))

    36

Show Answer
Answer: ((a))

30

60

Choose the figure that is different from the rest.

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

61

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

1.14, 1.28, 1.42, ?, 1.70, 1.84

  1. ((a))

    1.56

  2. ((b))

    1.54

  3. ((c))

    1.68

  4. ((d))

    1.62

Show Answer
Answer: ((a))

1.56

62

Two planes E and F start flying from the same point. E flies 7 km west, then turns to its left and flies 15 km. Meanwhile F flies 11 km east and turns right and flies 15 km. Where is F with respect to E?

  1. ((a))

    F is 18 km west of E

  2. ((b))

    F is 4 km east of E

  3. ((c))

    F is 18 km east of E

  4. ((d))

    F is 4 km west of E

Show Answer
Answer: ((a))

F is 18 km west of E

63

Given below are some letters, that each of these letters has a corresponding number. Select the combination of numbers from the option so that the jumbled letters arranged accordingly will form a meaningful English word.

H T R U O A

1 2 3 4 5 6

  1. ((a))

    6, 4, 2, 1, 5, 3

  2. ((b))

    3, 4, 5, 2, 1, 6

  3. ((c))

    1, 6, 2, 4, 5, 3

  4. ((d))

    2, 1, 5, 3, 4, 6

Show Answer
Answer: ((a))

6, 4, 2, 1, 5, 3

64

I, J, K and L are sitting in a row. L and I are sitting next to each other and I and K are the ends. Who is sitting next to J?

  1. ((a))

    Only K 

  2. ((b))

    L and I

  3. ((c))

    K and L

  4. ((d))

    Only L

Show Answer
Answer: ((a))

Only K 

65

Select the option that is related to the third term in the same way as the second term is related to the first term.

Tall : Short ∷ Glad : ?

  1. ((a))

    Sad

  2. ((b))

    Happy

  3. ((c))

    Emotion

  4. ((d))

    Smile

Show Answer
Answer: ((a))

Sad

66

If, ‘+’ represents ‘×’, ‘-‘ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘-‘ then find the value of the following expression.

9 × 3 + 6 ÷ 2 = ?

  1. ((a))

    20

  2. ((b))

    10

  3. ((c))

    12

  4. ((d))

    16

Show Answer
Answer: ((a))

20

67

If G + H means G is daughter of H, G- H means G is sister H and G * H means G is husband of H, which of the following shows that I is the daughter of H?

  1. ((a))

    I – J + F * H

  2. ((b))

    I + J - F * H

  3. ((c))

    I – J * F + H

  4. ((d))

    I * J - F + H

Show Answer
Answer: ((a))

I – J + F * H

68

Which of the following Venn diagrams best represents the relationship between Indians, doctors and women?

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

69

Given below are two statement, followed by two conclusion, I and II. You have to consider the statement to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow(s) from the given statements.

Statement 1: No quadrilaterals are polygons.

Statement 2: All polygons are rhombuses.

Conclusion I: Some rhombuses are quadrilaterals.

Conclusion II: Some rhombuses are polygons.

  1. ((a))

    Neither I nor II follows

  2. ((b))

    Only conclusion II follows

  3. ((c))

    Only conclusion I follows

  4. ((d))

    Both I and II follow

Show Answer
Answer: ((a))

Neither I nor II follows

70

Which two signs should be interchanged to make the given equation correct?

9 ÷ 3 + 8 × 2 – 15 = 2

  1. ((a))

    × and -

  2. ((b))

    ÷ and -

  3. ((c))
    • and ×
  4. ((d))
    • and -
Show Answer
Answer: ((a))

× and -

71

What is the minimum number of lines required to make the given image?

  1. ((a))

    13

  2. ((b))

    12

  3. ((c))

    10

  4. ((d))

    9

Show Answer
Answer: ((a))

13

72

A series is give, with one term missing. Choose the correct alternative from the given ones that will complete the series.

OOOOOX, OOOOXX, OOOXXX, OOXXXX, ?

  1. ((a))

    XXXXXX

  2. ((b))

    OOXXXXX

  3. ((c))

    OOXXXX

  4. ((d))

    OXXXXX

Show Answer
Answer: ((a))

XXXXXX

73

If C $ D means C is daughter of D, C & D means C is mother of D and C % D means C is son of D, then what does W $ X & Y % Z mean?

  1. ((a))

    Z is wife of W

  2. ((b))

    Z is mother of W

  3. ((c))

    Z is father of W

  4. ((d))

    Z is daughter of W

Show Answer
Answer: ((a))

Z is wife of W

74

Given below is a question, followed by two arguments, I and II. You have to decide which of the given arguments, if any, is a strong argument, with respect to the question.

Question: Should advertisements be banned on television?

Argument I: Yes, advertisements are immoral.

Argument II: No, advertisements bring in revenue which helps reduce cost for viewers.

  1. ((a))

    Only argument II is strong.

  2. ((b))

    Only argument I is strong.

  3. ((c))

    Neither I nor II is strong.

  4. ((d))

    Both I and II are strong.

Show Answer
Answer: ((a))

Only argument II is strong.

75

Select the option that is related to the third number in the same way as the second number is related to the first number.

-9/11 : 11/9 ∷ 13/2 : ?

  1. ((a))

    3/7

  2. ((b))

    2/13

  3. ((c))

    -2/13

  4. ((d))

    -7/3

Show Answer
Answer: ((a))

3/7

76

Given below is a statement followed by two assumption numbered I and II. You have to decide which of the assumptions is/are implicit in the statement.

Statement: The human body produces Vitamin D when exposed to sunlight.

Assumption I: The human body will have Vitamin D even if it is not consumed via food.

Assumption II: A large portion of the global population suffers from Vitamin D deficiency.

  1. ((a))

    Both I and II are implicit

  2. ((b))

    Only assumption II is implicit

  3. ((c))

    Neither I nor II is implicit

  4. ((d))

    Only assumption I is implicit

Show Answer
Answer: ((a))

Both I and II are implicit

77

A salesperson starts from his office and drives 2 km east, then turns north and drives 7 km, then turns to his right and drives 6 km, then turns south and drives 7 km. Where is he now with respect to his starting position?

  1. ((a))

    8 km east

  2. ((b))

    4 km west

  3. ((c))

    4 km east

  4. ((d))

    8 km west

Show Answer
Answer: ((a))

8 km east

78

Unscramble the letters in the words given below and find the odd word out.

  1. ((a))

    FLOW

  2. ((b))

    ILNO

  3. ((c))

    ERTIG

  4. ((d))

    WCO

Show Answer
Answer: ((a))

FLOW

79

Find the odd group of letters from the given alternatives.

  1. ((a))

    EFG

  2. ((b))

    PQR

  3. ((c))

    VWX

  4. ((d))

    HJL

Show Answer
Answer: ((a))

EFG

80

Choose the figure that is different from the rest.

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

81

In a code language, 295 means ‘water is liquid’, 549 means ‘oil is liquid’ and 824 means ‘oil on water.’ Find the code for ‘on’.

  1. ((a))

    4

  2. ((b))

    2

  3. ((c))

    8

  4. ((d))

    5

Show Answer
Answer: ((a))

4

82

In the following figure, square represents Chinese, triangle represents dancers, circle represents male and rectangle represents architects. Which set of letters represents dancers who are male?

  1. ((a))

    DEIG

  2. ((b))

    DEF

  3. ((c))

    IGH

  4. ((d))

    GEF

Show Answer
Answer: ((a))

DEIG

83

The abbreviation AC in an engineering drawing stands for __________.

  1. ((a))

    Across Corners

  2. ((b))

    Aerial Cut

  3. ((c))

    Attached Circle

  4. ((d))

    Air Conditioning

Show Answer
Answer: ((a))

Across Corners

84

Greater the value of _______ of a material, the more rapidly it will conduct heat. 

  1. ((a))

    melting point

  2. ((b))

    latent heat

  3. ((c))

    regelation

  4. ((d))

    thermal conductivity

Show Answer
Answer: ((a))

melting point

85

The effort applied to move a load is 15 units and the mechanical advantage is observed to be 3. Find the load. 

  1. ((a))

    5 units

  2. ((b))

    3 units

  3. ((c))

    15 units

  4. ((d))

    45 units

Show Answer
Answer: ((a))

5 units

86

What is the unit's digit in 366 × 641 × 753 

  1. ((a))

    8

  2. ((b))

    3

  3. ((c))

    6

  4. ((d))

    7

Show Answer
Answer: ((a))

8

87

If the width of a standard engineering drawing sheet is 841 mm, then its length would be ________ mm. 

  1. ((a))

    1189

  2. ((b))

    1250

  3. ((c))

    1000

  4. ((d))

    1216

Show Answer
Answer: ((a))

1189

88

A 200 g block of iron was heated from 30°C to 60°C. How much heat was transferred to the block (specific heat of iron is 450 Jkg-1K-1)?

  1. ((a))

    6000 J

  2. ((b))

    27 J

  3. ((c))

    2700 J

  4. ((d))

    270 J

Show Answer
Answer: ((a))

6000 J

89

If a machine overcomes a load 'L' and the distance travelled by the load is 'Ld', the work done by the load will be __________.

  1. ((a))

    L × Ld

  2. ((b))

    LLd\rm \frac{L}{Ld}

  3. ((c))

    LdL\rm \frac{Ld}{L}

  4. ((d))

    1L×Ld\rm \frac{1}{L \times Ld}

Show Answer
Answer: ((a))

L × Ld

90

A brass rod (thermal conductivity 109 J/s m K) has an area of cross section 0.04 m2 and length 20 cm. If the two end of the rod are maintained at a temperature difference of 200°C, the rate of heat flow through the rod is ________.

  1. ((a))

    3.42 kJ/s

  2. ((b))

    2.32 kJ/s

  3. ((c))

    4.36 kJ/s

  4. ((d))

    5.80 kJ/s

Show Answer
Answer: ((a))

3.42 kJ/s

91

The effort in a class 1 lever is in __________ direction(s).

  1. ((a))

    three

  2. ((b))

    multiple

  3. ((c))

    two

  4. ((d))

    one

Show Answer
Answer: ((a))

three

92

The velocity ratio of a simple machine is the ratio of distance traveled by the ________ to the distance traveled by the ________ in the machine.

  1. ((a))

    load; load

  2. ((b))

    effort; load

  3. ((c))

    load; effort

  4. ((d))

    effort; effort

Show Answer
Answer: ((a))

load; load

93

If straight lines are drawn from various points on the contour of an object to meet a plane, the figure obtained on the plane is called the _______ of the object. 

  1. ((a))

    development

  2. ((b))

    dimensioning

  3. ((c))

    projection

  4. ((d))

    animation

Show Answer
Answer: ((a))

development

94

A _______ is a theoretical exact plane, axis or point location that GD & T or dimensional tolerances are referenced to. 

  1. ((a))

    flange

  2. ((b))

    frame

  3. ((c))

    section

  4. ((d))

    datum

Show Answer
Answer: ((a))

flange

95

Molar specific heat capacity of a substance is _________.

  1. ((a))

    (1μ)(ΔQΔT)\left(\frac{1}{\mu}\right)\left( \frac{\Delta Q}{\Delta T} \right)

  2. ((b))

    μ(ΔQΔT)\mu \left( \frac{\Delta Q}{\Delta T} \right)

  3. ((c))

    (1μ)(ΔTΔQ)\left(\frac{1}{\mu}\right)\left( \frac{\Delta T}{\Delta Q} \right)

  4. ((d))

    μ(ΔTΔQ)\mu \left( \frac{\Delta T}{\Delta Q} \right)

Show Answer
Answer: ((a))

(1μ)(ΔQΔT)\left(\frac{1}{\mu}\right)\left( \frac{\Delta Q}{\Delta T} \right)

96

In engineering drawing, the letters LH signifies __________.

  1. ((a))

    Level Hide

  2. ((b))

    Left Hand

  3. ((c))

    Low Heat

  4. ((d))

    Limit of Height

Show Answer
Answer: ((a))

Level Hide

97

Identify the material having high coefficient of volume expansion. 

  1. ((a))

    Brass

  2. ((b))

    Alcohol

  3. ((c))

    Glass

  4. ((d))

    Water

Show Answer
Answer: ((a))

Brass

98

An object starts from rest at x = 0 m and moves with a constant acceleration of 1.6 m/s2 along the x-axis. During its journey from x = 12.8 m to x = 20.0 m, its average velocity will be __________.

  1. ((a))

    7.2 m/s

  2. ((b))

    3.6 m/s

  3. ((c))

    8.8 m/s

  4. ((d))

    2.4 m/s

Show Answer
Answer: ((a))

7.2 m/s

99

You are given a question and two statements. Identify which of the statements is/are necessary/sufficient to answer the question.

Question: What was the discount percent offered on the soap by the store?

Statements:

I) The store is giving 1 soap free on purchase of three.

II) Rs. 10 discount is offered on purchase of soap worth 36.

  1. ((a))

    II alone is sufficient while I alone is not sufficient

  2. ((b))

    I alone is sufficient while II alone is not sufficient

  3. ((c))

    Neither I nor II is sufficient

  4. ((d))

    Either I or II is sufficient

Show Answer
Answer: ((a))

II alone is sufficient while I alone is not sufficient

100

Identify the material having low coefficient of volume expansion 

  1. ((a))

    Iron

  2. ((b))

    Mercury

  3. ((c))

    Brass

  4. ((d))

    Aluminium

Show Answer
Answer: ((a))

Iron

Part B (75 questions)

101

In case of arc welding, one should protect his eyes using

  1. ((a))

    Dark glass screen 

  2. ((b))

    Mask

  3. ((c))

    Safety goggles

  4. ((d))

    Sun goggles

Show Answer
Answer: ((a))

Dark glass screen 

102

Bearing bushes are made up of ________

  1. ((a))

    Cast Iron 

  2. ((b))

    White Metal 

  3. ((c))

    Gun Metal

  4. ((d))

    Copper

Show Answer
Answer: ((a))

Cast Iron 

103

The part of the universal surface gauge which helps to draw a parallel line along a datum edge is the ________

  1. ((a))

    Rocker arm

  2. ((b))

    Guide pins

  3. ((c))

    Snug

  4. ((d))

    Fine adjusting screw

Show Answer
Answer: ((a))

Rocker arm

104

The threads on the lead screw of a lathe are called

  1. ((a))

    Acme threads

  2. ((b))

    Square threads

  3. ((c))

    Knuckle threads

  4. ((d))

    Buttress threads

Show Answer
Answer: ((a))

Acme threads

105

Which is closest to the purest form of the iron?

  1. ((a))

    Cast Iron

  2. ((b))

    Wrought Iron

  3. ((c))

    Pig Iron

  4. ((d))

    Steel

Show Answer
Answer: ((a))

Cast Iron

106

Which among the following processes is employed for embedding the abrasive on the lap?

  1. ((a))

    Lapping

  2. ((b))

    Fixing

  3. ((c))

    Charging

  4. ((d))

    Rubbing

Show Answer
Answer: ((a))

Lapping

107

A wedge-like tool which is used for removing the taper shank tools from the nose of the machine spindle, is called as _________

  1. ((a))

    Drill chuck

  2. ((b))

    Drill key

  3. ((c))

    Drill socket

  4. ((d))

    Drill drift

Show Answer
Answer: ((a))

Drill chuck

108

A hole, which is not made through full depth of the component is known as _________?

  1. ((a))

    through hole

  2. ((b))

    blind hole

  3. ((c))

    steeped hole

  4. ((d))

    all of the above

Show Answer
Answer: ((a))

through hole

109

Drill chucks are held on the machine spindle by means of _________.

  1. ((a))

    arbor

  2. ((b))

    Drift

  3. ((c))

    draw-in bar

  4. ((d))

    chuck nut

Show Answer
Answer: ((a))

arbor

110

Which chisel type is used for cutting key-ways, Grooves and slots?

  1. ((a))

    Flat chisel

  2. ((b))

    Diamond point chisel

  3. ((c))

    Cross cut chisel

  4. ((d))

    Half round nose chisel

Show Answer
Answer: ((a))

Flat chisel

111

Choose the best device to hold and locate a round bar for drilling.

  1. ((a))

    'V’-block

  2. ((b))

    Adjustable locator

  3. ((c))

    Pin locator

  4. ((d))

    Wedge type location

Show Answer
Answer: ((a))

'V’-block

112

Name the forging operation where the length of a piece of metal is reduced and its cross sectional area is increased

  1. ((a))

    Upsetting

  2. ((b))

    Drifts

  3. ((c))

    Drawing out

  4. ((d))

    Bolster

Show Answer
Answer: ((a))

Upsetting

113

The electrode size refers to

  1. ((a))

    Diameter of its core wire

  2. ((b))

    Diameter (overall) of electrode

  3. ((c))

    Thickness of flux coating

  4. ((d))

    Length of electrode

Show Answer
Answer: ((a))

Diameter of its core wire

114

Parallel blocks are used for_______.

  1. ((a))

    levelling machine tools

  2. ((b))

    setting workpiece horizontal

  3. ((c))

    cutting parallel keys

  4. ((d))

    marking parallel lines along an edge

Show Answer
Answer: ((a))

levelling machine tools

115

The straight shank drill is held in the main spindle of drilling machine by

  1. ((a))

    chuck

  2. ((b))

    floating holder

  3. ((c))

    collet

  4. ((d))

    sleeve

Show Answer
Answer: ((a))

chuck

116

Which property of metal is called mechanical property?

  1. ((a))

    conductivity

  2. ((b))

    tenacity

  3. ((c))

    fusibility

  4. ((d))

    specific gravity

Show Answer
Answer: ((a))

conductivity

117

The surface connecting crest and root of a thread is termed as

  1. ((a))

    Depth of thread

  2. ((b))

    Thread angle

  3. ((c))

    Pitch

  4. ((d))

    Flank

Show Answer
Answer: ((a))

Depth of thread

118

Which one of the following is a temporary joint?

  1. ((a))

    Riveted joint

  2. ((b))

    Welded joint

  3. ((c))

    Soldered joint

  4. ((d))

    Press fit joint

Show Answer
Answer: ((a))

Riveted joint

119

IC engine cylinder bores are finished in best way by:

  1. ((a))

    Grinding

  2. ((b))

    Lapping

  3. ((c))

    Honing

  4. ((d))

    Spot facing

Show Answer
Answer: ((a))

Grinding

120

Clogging of workpiece material in grinding wheel means

  1. ((a))

    Dressing

  2. ((b))

    Trueing

  3. ((c))

    Loading

  4. ((d))

    Glazing

Show Answer
Answer: ((a))

Dressing

121

Which of the following types of pulley is used in-group drives?

  1. ((a))

    Solid pulley 

  2. ((b))

    Split pulley 

  3. ((c))

    Fast and loose pulley

  4. ((d))

    Jockey pulley 

Show Answer
Answer: ((a))

Solid pulley 

122

The creep in a belt drive is due to the 

  1. ((a))

    Power fluctuation 

  2. ((b))

    Thickness of the belt 

  3. ((c))

    Unequal tension in tight and slack sides of the belt

  4. ((d))

    Equal size of the pulleys 

Show Answer
Answer: ((a))

Power fluctuation 

123

The pattern of the work surface caused by the movement of the cutting tool is known as,

  1. ((a))

    Surface texture

  2. ((b))

    Roughness

  3. ((c))

    Roughness spacing

  4. ((d))

    Waviness

Show Answer
Answer: ((a))

Surface texture

124

In a boring operation, the amount of 1 mm cut will increase the diameter of__ mm.

  1. ((a))

    1

  2. ((b))

    1.5

  3. ((c))

    2

  4. ((d))

    0.5

Show Answer
Answer: ((a))

1

125

In general, which of the following is the medium used to harden the high speed steel?

  1. ((a))

    Soda water

  2. ((b))

    Water

  3. ((c))

    Oil

  4. ((d))

    Salt water solution

Show Answer
Answer: ((a))

Soda water

126

The measuring faces of the slip gauges are finished by ______.

  1. ((a))

    Honing

  2. ((b))

    Lapping

  3. ((c))

    Reaming

  4. ((d))

    Drilling

Show Answer
Answer: ((a))

Honing

127

The length of the sine bar is the distance between

  1. ((a))

    Center-to-center distance between rollers

  2. ((b))

    Out-of-distance distance between rollers.

  3. ((c))

    Diagonal cross-length of sine bar

  4. ((d))

    One end at the other end of the sign bar

Show Answer
Answer: ((a))

Center-to-center distance between rollers

128

The number of fundamental tolerance in the Indian Standard System are:

  1. ((a))

    16

  2. ((b))

    15

  3. ((c))

    18

  4. ((d))

    14

Show Answer
Answer: ((a))

16

129

Which part of a lathe machine is involved for taper turning?

  1. ((a))

    Leadscrew

  2. ((b))

    Cross slide

  3. ((c))

    Gearbox

  4. ((d))

    Carriage 

Show Answer
Answer: ((a))

Leadscrew

130

In globe valves the pressure is usually ______.

  1. ((a))

    against the stem

  2. ((b))

    under the seat

  3. ((c))

    on the right side

  4. ((d))

    on the left side

Show Answer
Answer: ((a))

against the stem

131

In the hole basis system, the hole is kept constant & the size of the _____ is varied to get the desired fit.

  1. ((a))

    Tolerance 

  2. ((b))

    Shaft

  3. ((c))

    Hole

  4. ((d))

    Fit

Show Answer
Answer: ((a))

Tolerance 

132

A slight convexity is given to the cutting edges of flat chisel to ______.

  1. ((a))

    allow the lubricant to enter

  2. ((b))

    cut sharp corners

  3. ((c))

    prevent digging of the ends of cutting edge

  4. ((d))

    cut curved surfaces

Show Answer
Answer: ((a))

allow the lubricant to enter

133

Indexing type tool post are called _____way tool post.

  1. ((a))

    Four

  2. ((b))

    One

  3. ((c))

    Two

  4. ((d))

    Three

Show Answer
Answer: ((a))

Four

134

Which of the following heat treatment method is generally used for reliving internal stresses of a hardened tool?

  1. ((a))

    Annealing

  2. ((b))

    Stabilizing

  3. ((c))

    Normalizing

  4. ((d))

    Tempering

Show Answer
Answer: ((a))

Annealing

135

During marking, the reference surface is provided by _____.

  1. ((a))

    work piece

  2. ((b))

    bore gauge

  3. ((c))

    marking-off table

  4. ((d))

    sketch of the job

Show Answer
Answer: ((a))

work piece

136

In railway carriage coupling ____ thread is used.

  1. ((a))

    Square

  2. ((b))

    Acme

  3. ((c))

    Buttress

  4. ((d))

    Knuckle

Show Answer
Answer: ((a))

Square

137

What is the value for roughness grade no ‘ N4 ‘ in micrometres

  1. ((a))

    0.025

  2. ((b))

    0.05

  3. ((c))

    0.1

  4. ((d))

    0.2

Show Answer
Answer: ((a))

0.025

138

The rivets are designated by _______.

  1. ((a))

    head diameter only

  2. ((b))

    length and diameter of rivet

  3. ((c))

    length of rivet only

  4. ((d))

    head shape only

Show Answer
Answer: ((a))

head diameter only

139

A file having 20 teeth (approximately) per 1 inch is generally termed as a ______ file.

  1. ((a))

    rough

  2. ((b))

    second cut

  3. ((c))

    dead-smooth

  4. ((d))

    smooth

Show Answer
Answer: ((a))

rough

140

Which pulley increase wrapping angle of pulley?

  1. ((a))

    V-pulley

  2. ((b))

    Timer pulley

  3. ((c))

    Rope pulley

  4. ((d))

    Jockey pulley

Show Answer
Answer: ((a))

V-pulley

141

______ is NOT a part of a combination set.

  1. ((a))

    Center head

  2. ((b))

    Protractor head

  3. ((c))

    Slip gauge

  4. ((d))

    Square head

Show Answer
Answer: ((a))

Center head

142

Which gauge is used for measuring diameter of a cylinder bore?

  1. ((a))

    Taper plug gauge

  2. ((b))

    Barometer

  3. ((c))

    Telescopic gauge

  4. ((d))

    Screw pitch gauge

Show Answer
Answer: ((a))

Taper plug gauge

143

Shears are used to cut _____.

  1. ((a))

    rubber sheets

  2. ((b))

    G.I Wire

  3. ((c))

    thick sheet

  4. ((d))

    very thinned sheet

Show Answer
Answer: ((a))

rubber sheets

144

What is the function of a “Pilot” when provided in reamer?

  1. ((a))

    Removing chips

  2. ((b))

    Hold in machine spindle

  3. ((c))

    Finish concentric hole

  4. ((d))

    Hold in tap wrench

Show Answer
Answer: ((a))

Removing chips

145

Which lathe machine attachment is used for relief to multipoint cutting tools ______.

  1. ((a))

    Milling attachment

  2. ((b))

    Relieving attachment

  3. ((c))

    Taper turning attachment

  4. ((d))

    Grinding attachment

Show Answer
Answer: ((a))

Milling attachment

146

A drift is used for ______.

  1. ((a))

    drawing a drill location

  2. ((b))

    fixing chuck on the machine spindle

  3. ((c))

    removing the drill from the machine spindle

  4. ((d))

    removing a broken drill from the work

Show Answer
Answer: ((a))

drawing a drill location

147

For which purpose bed gap is maintained near head stock of lathe machine?

  1. ((a))

    To reduce bed weight

  2. ((b))

    To machine large diameter job

  3. ((c))

    To reduce cost of the machine

  4. ((d))

    To improve its aesthetics

Show Answer
Answer: ((a))

To reduce bed weight

148

A block level can be used for checking _____.

  1. ((a))

    only vertical alignment

  2. ((b))

    only horizontal alignment

  3. ((c))

    only angular alignment

  4. ((d))

    vertical & horizontal alignment

Show Answer
Answer: ((a))

only vertical alignment

149

Which fire extinguisher is used for controlling class ‘B’ fire?

  1. ((a))

    CO2

  2. ((b))

    Wood chips

  3. ((c))

    Carbon tetrachloride

  4. ((d))

    Water

Show Answer
Answer: ((a))

CO2

150

_______ is a process of case hardening in which the outer layer is made hard by increasing amount of carbon.

  1. ((a))

    Annealing

  2. ((b))

    Normalizing

  3. ((c))

    Carburizing 

  4. ((d))

    Tempering

Show Answer
Answer: ((a))

Annealing

151

What is the use of hermaphrodite caliper?

  1. ((a))

    Scribing parallel line to an edge.

  2. ((b))

    Scribing a cycloid to an edge.

  3. ((c))

    Checking diameter of a round bar.

  4. ((d))

    Scribing zig-zag lines.

Show Answer
Answer: ((a))

Scribing parallel line to an edge.

152

The number of threads per inch can be checked with a ____.

  1. ((a))

    slip gauge

  2. ((b))

    ring gauge

  3. ((c))

    metric rule

  4. ((d))

    screw pitch gauge

Show Answer
Answer: ((a))

slip gauge

153

In the process of dressing of grinding wheels to restore sharpness is done by _____.

  1. ((a))

    sharp edged H.S.S cutter

  2. ((b))

    tool steel dresser

  3. ((c))

    pumice stone dresser

  4. ((d))

    diamond dresser

Show Answer
Answer: ((a))

sharp edged H.S.S cutter

154

The grade of slip gauges for general workshop application.

  1. ((a))

    Grade ‘ii’

  2. ((b))

    Grade ‘0’

  3. ((c))

    Grade ‘0 0’

  4. ((d))

    Grade ‘i’

Show Answer
Answer: ((a))

Grade ‘ii’

155

A prick punch having angle of taper 60° is used for _____.

  1. ((a))

    punching marks for holes to be drilled

  2. ((b))

    witness marks on scribed lines

  3. ((c))

    locating hole position

  4. ((d))

    locating divider points

Show Answer
Answer: ((a))

punching marks for holes to be drilled

156

During the use of shaft, the component used to hold & support the shaft is called_____.

  1. ((a))

    shaft

  2. ((b))

    pulley

  3. ((c))

    bearing

  4. ((d))

    gear

Show Answer
Answer: ((a))

shaft

157

______ is the capacity of the metal to be expanded in all directions without fracturing by hammering or rolling.

  1. ((a))

    Casting

  2. ((b))

    Malleability

  3. ((c))

    Hardness

  4. ((d))

    Brittleness

Show Answer
Answer: ((a))

Casting

158

For flowering or frosting _____ scraper is used

  1. ((a))

    Triangular

  2. ((b))

    Hook

  3. ((c))

    Flat

  4. ((d))

    Bull nose

Show Answer
Answer: ((a))

Triangular

159

A work piece is center drilled in the lathe for the purpose of _____.

  1. ((a))

    spotting a hole for drilling or for turning in between centres

  2. ((b))

    turning in between centers only

  3. ((c))

    facing to the centre of the work piece

  4. ((d))

    for increasing strength of the workpiece

Show Answer
Answer: ((a))

spotting a hole for drilling or for turning in between centres

160

Which among the following operations will be most suitable, and will produce a larger diameter hole concentric to a cored hole in a casting?

  1. ((a))

    Boring

  2. ((b))

    Facing

  3. ((c))

    External turning

  4. ((d))

    Knurling

Show Answer
Answer: ((a))

Boring

161

The ratio of the strength of a riveted joint to the strength of original solid plate is called as ________ of the joint.

  1. ((a))

    stiffness

  2. ((b))

    strength

  3. ((c))

    an efficiency

  4. ((d))

    an accuracy

Show Answer
Answer: ((a))

stiffness

162

Which of the following instrument is used for measuring higher temperatures in a furnace?

  1. ((a))

    Barometer

  2. ((b))

    Pyrometer

  3. ((c))

    Calorimeter

  4. ((d))

    Thermometer

Show Answer
Answer: ((a))

Barometer

163

The included angle between the lip drills is known as _______.

  1. ((a))

    Rake angle

  2. ((b))

    Chisel edge angle

  3. ((c))

    Point angle

  4. ((d))

    Helix angle

Show Answer
Answer: ((a))

Rake angle

164

Which of the following statement is correct about an independent four jaw chuck?

  1. ((a))

    The jaws can be moved in and out radially

  2. ((b))

    The jaws move simultaneously

  3. ((c))

    The jaws cannot be used to hold a bar having a square cross section

  4. ((d))

    It is not to be used for round jobs

Show Answer
Answer: ((a))

The jaws can be moved in and out radially

165

Which of the following is an advantage of plant maintenance?

  1. ((a))

    It decreases accuracy of instruments

  2. ((b))

    It increases life of instruments

  3. ((c))

    It decreases plant safety

  4. ((d))

    It decreases life of instruments

Show Answer
Answer: ((a))

It decreases accuracy of instruments

166

It works on the principle of rake & pinion.

  1. ((a))

    Vernier bevel protactor

  2. ((b))

    Dial test indicator

  3. ((c))

    Vernier height gauge

  4. ((d))

    Micrometer

Show Answer
Answer: ((a))

Vernier bevel protactor

167

In a brazing operation, which of the following is the commonly used flux?

  1. ((a))

    Sulphuric acid

  2. ((b))

    Hydrochloric acid

  3. ((c))

    Diesel oil

  4. ((d))

    Borax

Show Answer
Answer: ((a))

Sulphuric acid

168

Drill chucks are fitted on the drilling machine spindle by means of ____

  1. ((a))

    Arbor 

  2. ((b))

    Drift

  3. ((c))

    Knurled ring

  4. ((d))

    Pinion & key 

Show Answer
Answer: ((a))

Arbor 

169

In case of riveted joints, caulking and fullering are the processes performed to make the joints _______. 

  1. ((a))

    Strong

  2. ((b))

    Soft

  3. ((c))

    Leak proof

  4. ((d))

    Flexible

Show Answer
Answer: ((a))

Strong

170

Following which things must be watched when sharpening a drill.

  1. ((a))

    Shank

  2. ((b))

    Margin

  3. ((c))

    Flute

  4. ((d))

    Angle of lips

Show Answer
Answer: ((a))

Shank

171

The roughing out machine tap has ______.

  1. ((a))

    tapered flutes

  2. ((b))

    helical flutes

  3. ((c))

    no flutes

  4. ((d))

    straight flutes

Show Answer
Answer: ((a))

tapered flutes

172

Generally, which of the following material doesn’t require coolant while machining?

  1. ((a))

    Aluminium

  2. ((b))

    Copper

  3. ((c))

    Mild steel

  4. ((d))

    Cast iron

Show Answer
Answer: ((a))

Aluminium

173

For deep underwater cutting, which of the following gas is used?

  1. ((a))

    Acetylene

  2. ((b))

    LPG

  3. ((c))

    Methane

  4. ((d))

    Hydrogen

Show Answer
Answer: ((a))

Acetylene

174

In sheet metal operation two edges are joined by ______.

  1. ((a))

    grooving

  2. ((b))

    seaming

  3. ((c))

    heming

  4. ((d))

    bending

Show Answer
Answer: ((a))

grooving

175

The distance between the crest & the root of a thread measured normal to the axis is _____.

  1. ((a))

    Pitch diameter

  2. ((b))

    Depth of thread

  3. ((c))

    Thickness of thread

  4. ((d))

    Minor diameter

Show Answer
Answer: ((a))

Pitch diameter

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