Official Paper

RRB ALP CBT-II (Heat Engine) Official Paper (Held On: 02 May, 2025 Shift 1) (Previous Year Paper)

175 questions · 150 minutes · with answers · free

Attempt as Timed Mock Test

Part A (100 questions)

1

The resistivity of a conductor depends on which of the following factors?

  1. ((a))

    Area of ​​the conductor

  2. ((b))

    Mass of the conductor

  3. ((c))

    Nature of the conductor

  4. ((d))

    Diameter of conductor

Show Answer
Answer: ((a))

Area of ​​the conductor

2

Which of the following statements is correct regarding negative work done?

  1. ((a))

    The work done cannot be negative.

  2. ((b))

    When the force is perpendicular to the displacement, the work done is negative.

  3. ((c))

    When the force acts opposite to the direction of displacement, the work done is negative.

  4. ((d))

    When the force and displacement are in the same direction, the work done is negative.

Show Answer
Answer: ((a))

The work done cannot be negative.

3

In areas with hot climate, white colour of the exterior walls of the house is preferred because

  1. ((a))

    White color keeps the interior environment of the house cool by reflecting sunlight.

  2. ((b))

    White color makes the wall more durable.

  3. ((c))

    White color makes the house brighter by absorbing more sunlight.

  4. ((d))

    The white color looks good.

Show Answer
Answer: ((a))

White color keeps the interior environment of the house cool by reflecting sunlight.

4

The sum of Yash's and his father's ages is 90 years. When Yash's age equals his father's present age, he will be five times his son Suraj's present age. When Yash's age equals his father's present age, Suraj's age will be 12 years more than Yash's present age. Find Suraj's present age.

  1. ((a))

    15 years

  2. ((b))

    18 years

  3. ((c))

    12 years

  4. ((d))

    16 years

Show Answer
Answer: ((a))

15 years

5

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

G5, I10, L15, N20, Q25, S30, ?

  1. ((a))

    W35

  2. ((b))

    V35

  3. ((c))

    V40

  4. ((d))

    U35

Show Answer
Answer: ((a))

W35

6

Which of the following is a supplementary protocol that allows non-ASCII data to be sent via e-mail?

  1. ((a))

    HTTPS

  2. ((b))

    Multipurpose Internet Mail Extensions (MIME)

  3. ((c))

    DNS

  4. ((d))

    Mailing Lists

Show Answer
Answer: ((a))

HTTPS

7

Which of the following options best describes the primary function of digital signatures in electronic communications?

  1. ((a))

    It automatically stores all electronic documents for future reference.

  2. ((b))

    It encrypts the entire message content to ensure confidentiality.

  3. ((c))

    It verifies the identity of the sender and ensures the integrity of the message.

  4. ((d))

    This allows the recipient to edit the document before adding the signature.

Show Answer
Answer: ((a))

It automatically stores all electronic documents for future reference.

8

The areas of three adjacent faces of a solid cuboid are 216 cm², 114 cm² and 19 cm². Find the volume (in cm³) of the cuboid.

  1. ((a))

    684

  2. ((b))

    955

  3. ((c))

    532

  4. ((d))

    880

Show Answer
Answer: ((a))

684

9

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it seems to be at variance from commonly known facts, decide which of the given conclusions logically follows from the statements.

Statements:

Some bananas are litchis.

All litchis are kiwis.

Some kiwis are strawberries.

Conclusions:

  1. All bananas are kiwis is a possibility.
  2. All kiwis are litchis.
  1. ((a))

    Only conclusion 1 follows

  2. ((b))

    Only conclusion 2 follows

  3. ((c))

    Neither conclusion 1 nor 2 follows

  4. ((d))

    Both conclusions 1 and 2 follow

Show Answer
Answer: ((a))

Only conclusion 1 follows

10

Which of the following ecosystems has very low temperatures and frozen soil?

  1. ((a))

    Desert

  2. ((b))

    Tropical rainforest

  3. ((c))

    Pasture

  4. ((d))

    Tundra

Show Answer
Answer: ((a))

Desert

11

If A is an acute angle and p tan A = n sec A, then find the value of p2−n2pn\frac{p^2 - n^2}{pn}.

  1. ((a))

    cot A .cos A

  2. ((b))

    sin A .cos A

  3. ((c))

    tan⁡Asec⁡A\frac{\tan A}{\sec A}

  4. ((d))

     None of the above.

Show Answer
Answer: ((a))

cot A .cos A

12

A fruit vendor initially had a few apples. He sold 40% of them and still had 300 apples left. How many apples did he initially have?

  1. ((a))

    750

  2. ((b))

    450

  3. ((c))

    600

  4. ((d))

    500

Show Answer
Answer: ((a))

750

13

Megha bought a bag for ₹1,271 after getting an 18% discount on the marked price. Find the marked price of the bag.

  1. ((a))

    1,450

  2. ((b))

    1,650

  3. ((c))

    1,550

  4. ((d))

    1,350

Show Answer
Answer: ((a))

1,450

14

Which of the following methods is the safest method for disposal of toxic dust?

  1. ((a))

    Leaving it in the air for dilution.

  2. ((b))

    Sweeping it in open areas.

  3. ((c))

    Using special hazardous waste disposal containers.

  4. ((d))

    Putting it in regular trash cans.

Show Answer
Answer: ((a))

Leaving it in the air for dilution.

15

Vijay cycles 10 meters from home to tuition, then 5 meters to the shop. He returns home in the same way, covering the same distance. Find the total length of the path.

  1. ((a))

    20 m

  2. ((b))

    15 m

  3. ((c))

    Zero

  4. ((d))

    30 m

Show Answer
Answer: ((a))

20 m

16

A, B, C, D, E, and F live on six different floors of the same building. The ground floor is numbered 1, the floor immediately above it is numbered 2, and so on, until the topmost floor is numbered 6. D lives on an odd-numbered floor, but not 3. The sum of the floors on which D and E live is 7. A lives on the floor immediately below C. F lives on the topmost floor. How many people live between E and F?

  1. ((a))

    4

  2. ((b))

    1

  3. ((c))

    3

  4. ((d))

    2

Show Answer
Answer: ((a))

4

17

Which of the following noise levels is considered potentially harmful to human health when experienced over a long period of time?

  1. ((a))

    70 dB

  2. ((b))

    90 dB

  3. ((c))

    30 dB

  4. ((d))

    50 dB

Show Answer
Answer: ((a))

70 dB

18

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair does not belong to that group? (Note: The odd letter-cluster pair is not based on the number of consonants/vowels or their position.)

  1. ((a))

     GN-PV

  2. ((b))

     JQ-SY

  3. ((c))

    HO-QW

  4. ((d))

    AH-JR

Show Answer
Answer: ((a))

 GN-PV

19

Which of the following relations is not correct?

  1. ((a))

    Electric power = (current)2 × resistance

  2. ((b))

    Electric power = voltage × current

  3. ((c))

    Electric power = voltage/current

  4. ((d))

    Electric power = (voltage)2 / resistance

Show Answer
Answer: ((a))

Electric power = (current)2 × resistance

20

In the following triplet, each group of letters is related to the next group following a certain logic. Select the option from the given ones that follows the same logic.

TERM-ERTM-TMRE

  1. ((a))

    WHEN-HWEN-WENH

  2. ((b))

    ZERO-EZRO-ZREO

  3. ((c))

    VICE-ICVE-VECI

  4. ((d))

    USER-RESU-REUS

Show Answer
Answer: ((a))

WHEN-HWEN-WENH

21

Which of the following options does not correctly represent the electric power P in a circuit (current, potential difference and resistance are symbolically written as I, V and R respectively.)

  1. ((a))

    P=V2RP = \frac{V^2}{R}

  2. ((b))

    P=I2RP = I^2 R

  3. ((c))

    P=VIP = VI

  4. ((d))

    P=IR2P = {IR^2}

Show Answer
Answer: ((a))

P=V2RP = \frac{V^2}{R}

22

In a certain code language, 'BARE' is coded as '8264' and 'RIDS' is coded as '3587'. What is the code for 'R' in the given code language?

  1. ((a))

    3

  2. ((b))

    8

  3. ((c))

    6

  4. ((d))

    5

Show Answer
Answer: ((a))

3

23

Kinetic energy and potential energy together are called which form of energy?

  1. ((a))

    Mechanical

  2. ((b))

    Chemical

  3. ((c))

    Ionic

  4. ((d))

    Nuclear

Show Answer
Answer: ((a))

Mechanical

24

If a circuit contains resistors of 10 Ω, 20 Ω and 60 Ω are connected in parallel, then find the total resistance of the circuit.

  1. ((a))

    90 Ω.

  2. ((b))

    60 Ω

  3. ((c))

    6 Ω

  4. ((d))

    20 Ω

Show Answer
Answer: ((a))

90 Ω.

25

What term is used to describe organisms in an ecosystem that produce their own food?

  1. ((a))

    Consumer

  2. ((b))

    Decomposer

  3. ((c))

    Vegetarian

  4. ((d))

    Producer

Show Answer
Answer: ((a))

Consumer

26

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

185 174 163 152 ? 130

  1. ((a))

    144

  2. ((b))

    142

  3. ((c))

    143

  4. ((d))

    141

Show Answer
Answer: ((a))

144

27

What is the primary source of energy for most ecosystems?

  1. ((a))

    Soil

  2. ((b))

    Wind

  3. ((c))

    Sunlight

  4. ((d))

    Water

Show Answer
Answer: ((a))

Soil

28

Potential energy falls under which of the following categories of energy?

  1. ((a))

    Thermal energy

  2. ((b))

    Light energy

  3. ((c))

    Chemical energy

  4. ((d))

    Mechanical energy

Show Answer
Answer: ((a))

Thermal energy

29

Two resistors of resistance 20 Ω and 30 Ω are connected in series in a circuit. If the supplied voltage is 250 V, find the current transmitted through the circuit.

  1. ((a))

    8 A

  2. ((b))

    12 A

  3. ((c))

    5 A

  4. ((d))

    20 A

Show Answer
Answer: ((a))

8 A

30

Study the given bar graph and answer the question below.

The given bar graph shows the number of flats sold by a builder in five different cities in the year 2020.

The number of flats sold in Delhi is what percent more than the number of flats sold in Mumbai?

  1. ((a))

    75%

  2. ((b))

    125%

  3. ((c))

    120%

  4. ((d))

    150%

Show Answer
Answer: ((a))

75%

31

Which of the following instruments is used to measure temperature?

  1. ((a))

    Hygrometer

  2. ((b))

    Voltmeter

  3. ((c))

    Thermometer

  4. ((d))

    Odometer

Show Answer
Answer: ((a))

Hygrometer

32

Use of energy efficient machinery in industrial settings mainly helps in ____________.

  1. ((a))

    increase energy consumption and consequently the cost of the product

  2. ((b))

    reducing industrial energy requirements and improve the competitiveness of products

  3. ((c))

    reducing operational efficiency

  4. ((d))

    extending the life of old equipment

Show Answer
Answer: ((a))

increase energy consumption and consequently the cost of the product

33

A dozen pairs of jeans costing ₹3,520 are available at a discount of 35%. How many pairs of jeans can be purchased for ₹572?

  1. ((a))

    2

  2. ((b))

    5

  3. ((c))

    1

  4. ((d))

    3

Show Answer
Answer: ((a))

2

34

Refer to the following letter and symbol series and answer the question that follows. Counting is to be done from left to right only. 

<br>

(Left) L R Ω Y A $ K ^ T J # Q & # E % S U * £ B (Right)

How many such symbols are there, each of which is immediately preceded by a vowel and also immediately followed by a letter?

  1. ((a))

    Two

  2. ((b))

    One

  3. ((c))

    Four

  4. ((d))

    Three

Show Answer
Answer: ((a))

Two

35

In the SI system, which of the following options best describes the fundamental quantities?

  1. ((a))

    Distance, Speed, Acceleration

  2. ((b))

    Temperature, pressure, volume

  3. ((c))

    Force, power, energy

  4. ((d))

    Length, mass, time

Show Answer
Answer: ((a))

Distance, Speed, Acceleration

36

An ammeter has 20 divisions between 0 and 2 A. The least count of an ammeter is _______________.

  1. ((a))

    0.2 A

  2. ((b))

    0.1 A

  3. ((c))

    1 A

  4. ((d))

    2 A

Show Answer
Answer: ((a))

0.2 A

37

If 'A' denotes '÷', 'B' denotes 'x', 'C' denotes '+' and 'D' denotes '-', then what will come in place of question mark (?) in the following equation?

38 C 32 A 4 D 5 B 7=?

  1. ((a))

    10

  2. ((b))

    8

  3. ((c))

    11

  4. ((d))

    9

Show Answer
Answer: ((a))

10

38

If x3+y3=16x^3 + y^3 = 16 and x + y = 4, then find the value of xy.

  1. ((a))

    4

  2. ((b))

    2

  3. ((c))

    3

  4. ((d))

    0

Show Answer
Answer: ((a))

4

39

What is the average human body temperature?

  1. ((a))

    40°C

  2. ((b))

    32°C

  3. ((c))

    42°C

  4. ((d))

    37°C

Show Answer
Answer: ((a))

40°C

40

Which of the following statements is true?

  1. ((a))

    In the kitchen, aluminium utensils are used because aluminium is a good conductor of heat.

  2. ((b))

    Both insulators and conductors allow heat to pass through them easily.

  3. ((c))

    Plastic is a good conductor of heat.

  4. ((d))

    Wood is a good conductor of heat.

Show Answer
Answer: ((a))

In the kitchen, aluminium utensils are used because aluminium is a good conductor of heat.

41

Refer to the following letter and symbol series and answer the question that follows. Counting is to be done from left to right only.

(Left) ^ T J # * £ B L R Ω Y # E % S U $ K Q & (Right)

How many such letters are there, each of which is immediately preceded by a letter and also immediately followed by a symbol?

  1. ((a))

    One

  2. ((b))

    Two

  3. ((c))

    Three

  4. ((d))

    Four

Show Answer
Answer: ((a))

One

42

According to the SI system of units, how many fundamental units are used to measure physical quantities?

  1. ((a))

    5

  2. ((b))

    10

  3. ((c))

    7

  4. ((d))

    4

Show Answer
Answer: ((a))

5

43

Eight people are sitting in two parallel rows containing 4 people in each row, in such a way that there is an equal distance between adjacent persons. Row 1 contains A, B, C and D, all of whom are facing south. Row 2 contains P, Q, R and S, all of whom are facing north. Thus, each person faces another person in the other row. Only two people sit between P and Q. A faces the person sitting to the immediate left of P. R sits to the immediate left of S. D sits to the immediate right of C. Who among the following faces P?

  1. ((a))

    D

  2. ((b))

    C

  3. ((c))

    B

  4. ((d))

    A

Show Answer
Answer: ((a))

D

44

Which of the following sequences of components primarily serves to execute instructions, store permanent firmware, temporarily store data during program execution, and provide a platform for interconnecting hardware components on a computer motherboard?

  1. ((a))

     RAM-ROM - CPU - PCB

  2. ((b))

     PCB-ROM-CPU-RAM

  3. ((c))

    CPU-RAM-ROM-PCB

  4. ((d))

    CPU-ROM-RAM- PCB

Show Answer
Answer: ((a))

 RAM-ROM - CPU - PCB

45

The area of ​​a regular polygon with side 12 cm is 144 cm². If the perpendicular distance from the center to the side of the polygon is 6 cm, find the number of sides of the polygon.

  1. ((a))

    5

  2. ((b))

    7

  3. ((c))

    6

  4. ((d))

    4

Show Answer
Answer: ((a))

5

46

A man purchased two varieties of pens at the rates of ₹8 for 9 pens and ₹8 per pen. If he purchased an equal number of pens of each of the two varieties and then sold all his pens at ₹6 per pen, what was his profit percentage?

  1. ((a))

    33%

  2. ((b))

    32%

  3. ((c))

    45%

  4. ((d))

    35%

Show Answer
Answer: ((a))

33%

47

Match the columns:

Engineering ApplicationsTypes of Engineering Drawings
A) Plans, facade elevations, and foundation drawings of houses to be constructed.P) Mechanical Engineering Drawings
B) Circuit Diagrams and Electrical Installation Drawings.Q) Electronics Engineering Drawings
C) PCB Track Drawings.R) Electrical Engineering Drawings
D) Riveted Joints and Welded Joints.S) Civil Engineering Drawings
  1. ((a))

     A-P: B-R; C-Q; D-S

  2. ((b))

     A-S; B-P; C-Q; D-R

  3. ((c))

    A-S; B-R; C-Q; D-P

  4. ((d))

    A-S; B-R; C-P; D-Q

Show Answer
Answer: ((a))

 A-P: B-R; C-Q; D-S

48

6 men or 5 women can complete a task in 7 days. 6 men work for 5 days and then leave. Find the number of women needed to complete the remaining task in 5 days.

  1. ((a))

    4

  2. ((b))

    2

  3. ((c))

    1

  4. ((d))

    3

Show Answer
Answer: ((a))

4

49

Which of the following statements are correct regarding the use of a fire extinguisher?

Statement 1: It is safe to attempt to extinguish any type of fire, regardless of the presence of toxic fumes.

Statement 2: The P.A.S.S. technique, which stands for Pull, Aim, Squeeze, and Sweep, is recommended for effective use of a fire extinguisher.

  1. ((a))

    Neither statement 1 nor 2 is correct.

  2. ((b))

    Only statement 1 is correct.

  3. ((c))

    Both statements 1 and 2 are correct.

  4. ((d))

    Only statement 2 is correct.

Show Answer
Answer: ((a))

Neither statement 1 nor 2 is correct.

50

Which of the following three-dimensional geometric figures has eight vertices and six rectangular faces?

  1. ((a))

    Pyramid

  2. ((b))

    Cylinder

  3. ((c))

    Parallelogram

  4. ((d))

    Cuboid

Show Answer
Answer: ((a))

Pyramid

51

In a hospital, the ratio between the number of doctors and the number of nurses was 1 : 3. The addition of 12 new doctors and the departure of 24 nurses brings the ratio to 3 : 4. After k more nurses resign from the hospital, the ratio becomes 1 : 1. Find the value of k.

  1. ((a))

    12

  2. ((b))

    28

  3. ((c))

    24

  4. ((d))

    26

Show Answer
Answer: ((a))

12

52

Which of the following statements is/are correct regarding functional dimension (F) in engineering drawings?

Statement 1: Functional dimensions are essential for the function of the component or space.

Statement 2: Functional dimensions are usually shown without any boundaries.

Statement 3: Functional dimensions are shown for reference purposes only.

  1. ((a))

    Only statement 1 is true

  2. ((b))

    Only statement 3 is true

  3. ((c))

    Only statements 2 and 3 are true

  4. ((d))

    Only statements 1 and 2 are true

Show Answer
Answer: ((a))

Only statement 1 is true

53

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 from commonly known facts, decide which of the given conclusions logically follows from the given statements.

Statements:

  1. Some desks are tables.

II. All tables are cabinets.

III. All cabinets are beds.

Conclusions:

I. Some beds are tables.

II. All cabinets are desks.

  1. ((a))

    Only conclusion I follows.

  2. ((b))

    Only conclusion II follows.

  3. ((c))

    Both conclusions I and II follow.

  4. ((d))

    Neither conclusion I nor conclusion II follows.

Show Answer
Answer: ((a))

Only conclusion I follows.

54

Ganpat starts from point A and walks 18 m west. He turns left, walks 32 m, then turns left again, walks 26 m, then turns left again, walks 61 m, and stops at point B. Meena starts from point Z, which is 22 m east of point A. She walks 42 m north, turns right, walks 35 m, turns right and walks 13 m, and stops at point Y. Find the shortest distance between point B and point Y. (All turns are 90-degree turns only.)

  1. ((a))

    52 m

  2. ((b))

    43 m

  3. ((c))

    57 m

  4. ((d))

    49 m

Show Answer
Answer: ((a))

52 m

55

Three circular plates of radii 3 m, 2 m, and 1 m are cut from a rectangular cardboard sheet 46 m long and 8 m wide. If the area of ​​the remaining cardboard sheet is equal to the area of ​​a square, find the length of each side of the square. (Use π=227\pi = \frac{22}{7})

  1. ((a))

    20 m

  2. ((b))

    18 m

  3. ((c))

    14 m

  4. ((d))

    16 m

Show Answer
Answer: ((a))

20 m

56

In a certain code language, 'CARD' is coded as '8674' and 'MICE' is coded as '3517'. What is the code for 'C' in the given code language?

  1. ((a))

    8

  2. ((b))

    7

  3. ((c))

    1

  4. ((d))

    6

Show Answer
Answer: ((a))

8

57

When an object of mass 50 kg is moved from one point to another along a horizontal line, what is the work done by the force of gravity on the object? (g=10m/s2)(g = 10 m / s ^ 2)

  1. ((a))

    Zero

  2. ((b))

    50 J

  3. ((c))

    500 J

  4. ((d))

    -500 J

Show Answer
Answer: ((a))

Zero

58

If 50 : x :: x : 32 and x > 0, then find the value of x.

  1. ((a))

    45.8

  2. ((b))

    40

  3. ((c))

    38.7

  4. ((d))

    40.6

Show Answer
Answer: ((a))

45.8

59

Two plumbers, X and Y, are paid a total of ₹770 per day by their employer. If X is paid 140% of the amount paid to Y, how much is Y paid per day (in ₹, rounded to two decimal places)?

  1. ((a))

    320.83

  2. ((b))

    220.83

  3. ((c))

    270.83

  4. ((d))

    370.83

Show Answer
Answer: ((a))

320.83

60

What will be the value of 10 km/hr in SI units?

  1. ((a))

    10 m/s

  2. ((b))

    0.16 m/s

  3. ((c))

    2.7 m/s

  4. ((d))

    1000 m/s

Show Answer
Answer: ((a))

10 m/s

61

In a certain code language,  

<br>

'A + B' means 'A is the mother of B',

'A - B' means 'A is the brother of B',

'A × B' means 'A is the wife of B' and

'A & B' means 'A is the father of B'.

<br>

If 'E & F + G - H x T', then how is E related to T?

  1. ((a))

    Wife's mother's father

  2. ((b))

    Wife's brother

  3. ((c))

    Wife's father

  4. ((d))

    Wife's mother's brother

Show Answer
Answer: ((a))

Wife's mother's father

62

If x = (7 + √5), y = (7 - √5), then find the value of x² + y².

  1. ((a))

    96

  2. ((b))

    137

  3. ((c))

    124

  4. ((d))

    108

Show Answer
Answer: ((a))

96

63

Convert 1 kilowatt hour (kWh) to joule.

  1. ((a))

    1 kWh=3.6×106 J{1\ \text{kWh} = 3.6 \times 10^6\ \text{J}}

  2. ((b))

    1 kWh=3.6×107 J1\ \text{kWh} = 3.6 \times 10^7\ \text{J}

  3. ((c))

    1 kWh=3.6×105 J1\ \text{kWh} = 3.6 \times 10^5\ \text{J}

  4. ((d))

    1 kWh=3.6×103 J1\ \text{kWh} = 3.6 \times 10^3\ {J}

Show Answer
Answer: ((a))

1 kWh=3.6×106 J{1\ \text{kWh} = 3.6 \times 10^6\ \text{J}}

64

Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pairs 4 to the left of :: is the same as the pattern and relationship followed between the letter-cluster pairs 4 to the right of ::?

: HDI :: MIN : %

  1. ((a))

    = JFI, % = KGL

  2. ((b))

     # = JFK, % = KGM

  3. ((c))

     # = JFK, % = KGL

  4. ((d))

    = JFK, % = KHL

Show Answer
Answer: ((a))

= JFI, % = KGL

65

What is the designation of the trimmed sheet with dimensions 297 mm x 420 mm, as per the ISO-A size series?

  1. ((a))

    A1

  2. ((b))

    A2

  3. ((c))

    A4

  4. ((d))

    A3

Show Answer
Answer: ((a))

A1

66

Which of the following expressions is not correct for electric power?

  1. ((a))

    P = VI

  2. ((b))

    P= V2/R

  3. ((c))

    P = I2/R

  4. ((d))

    P = I2R

Show Answer
Answer: ((a))

P = VI

67

What does the symbol given below in the circuit diagram represent?

  1. ((a))

    Voltmeter

  2. ((b))

    Voltage source

  3. ((c))

    Resistor

  4. ((d))

    Variable resistor

Show Answer
Answer: ((a))

Voltmeter

68

Preeti, Kiran, Grace, Ankit, Deepak, Nitin and Neelam each have an exam on a different day of the same week, starting from Monday and ending on Sunday. Preeti has an exam on Thursday. Only one person has an exam between Preeti and Nitin. Grace has an exam the day immediately before Nitin but not on Monday. Only two people have an exam between Grace and Deepak. Neelam has her exam before Ankit but after Kiran. Who among the following has an exam on Monday?

  1. ((a))

    Nitin

  2. ((b))

    Neelam 

  3. ((c))

    Kiran

  4. ((d))

    Deepak

Show Answer
Answer: ((a))

Nitin

69

If 59\frac{5}{9} of a number is 6 more than 12\frac{1}{2} of that number, then find that number.

  1. ((a))

    104

  2. ((b))

    108

  3. ((c))

    106

  4. ((d))

    102

Show Answer
Answer: ((a))

104

70

What should be done immediately after a fuel spillage in a workshop?

  1. ((a))

    Cover it with plastic to prevent evaporation.

  2. ((b))

    Use water to wash it off

  3. ((c))

    Leave it as is and inform the supervisor later

  4. ((d))

    Empty the area and control overflow using absorbent materials

Show Answer
Answer: ((a))

Cover it with plastic to prevent evaporation.

71

A cube of mass 5.74 g occupies a volume of 1.2 cm³. The density (in g/cm³) expressed with the correct number of significant figures is _____________.

  1. ((a))

    4.7833

  2. ((b))

    4.8

  3. ((c))

    4.78

  4. ((d))

    4.783

Show Answer
Answer: ((a))

4.7833

72

In science, work done is defined as:

  1. ((a))

    force / distance

  2. ((b))

    force / displacement

  3. ((c))

    force × displacement

  4. ((d))

    force × distance

Show Answer
Answer: ((a))

force / distance

73

Simplify 976 × 265 + 976 × 735.

  1. ((a))

    752800

  2. ((b))

    976000

  3. ((c))

    658200

  4. ((d))

    876000

Show Answer
Answer: ((a))

752800

74

Which of the following is not an advantage of using mobile governance using ICT?

  1. ((a))

    Reduced costs for the government

  2. ((b))

    Better access to government services for citizens

  3. ((c))

    Increased transparency and accountability in government

  4. ((d))

    Increasing the efficiency of government processes

Show Answer
Answer: ((a))

Reduced costs for the government

75

Study the given diagram carefully and answer the question given below. The numbers in different sections represent the number of children who like different desserts.

<br> <br>

How many children like both pastries and ice cream but not chocolate?

  1. ((a))

    9

  2. ((b))

    6

  3. ((c))

    7

  4. ((d))

    8

Show Answer
Answer: ((a))

9

76

The rate of doing work is known as ___________.

  1. ((a))

    Power

  2. ((b))

    Force

  3. ((c))

    Kinetic energy

  4. ((d))

    Potential energy

Show Answer
Answer: ((a))

Power

77

Which of the following actions help prevent injuries from slips and falls?

  1. ((a))

    Wearing loose shoes for comfort

  2. ((b))

    Walk carefully on wet floors

  3. ((c))

    Cleaning up spills immediately and using warning signs

  4. ((d))

    Ignoring clutter on the sidewalk

Show Answer
Answer: ((a))

Wearing loose shoes for comfort

78

In the following series, only one letter-cluster is wrong. Choose the wrong letter-cluster.

PCO MEM JGK GIJ DKG AME

  1. ((a))

    AME

  2. ((b))

    JGK

  3. ((c))

    DKG

  4. ((d))

    GIJ

Show Answer
Answer: ((a))

AME

79

Which of the following statements about geometric shapes is/are true?

  1. Geometric shapes are enclosed figures formed by joining two or more points, lines, or curves.
  2. Geometric shapes are always open-ended and made up of only straight lines.
  1. ((a))

    Only statement 1 is true

  2. ((b))

    Only statement 2 is true

  3. ((c))

    Both statements 1 and 2 are true

  4. ((d))

    Neither statement 1 nor 2 is true

Show Answer
Answer: ((a))

Only statement 1 is true

80

A tank has two inlets, I1 and I2. I1 alone can fill it in 8 hours, and I2 alone can fill it in 4 hours. If both inlets are open, how long will it take to fill the tank?

  1. ((a))

    2 hours

  2. ((b))

    2232\frac{2}{3} hours

  3. ((c))

    3233\frac{2}{3} hours

  4. ((d))

    4234\frac{2}{3} hours

Show Answer
Answer: ((a))

2 hours

81

A 280 m long train travelling at a speed of 72 km/hr crosses a platform in 30 seconds. Find the length (in m) of the platform.

  1. ((a))

    335

  2. ((b))

    280

  3. ((c))

    300

  4. ((d))

    320

Show Answer
Answer: ((a))

335

82

Amit's income in 2019 was ₹27,000. His income increases by 10% each year. What was his income (in ₹) in 2021?

  1. ((a))

    32,400

  2. ((b))

    29,700

  3. ((c))

    32,670

  4. ((d))

    27,000

Show Answer
Answer: ((a))

32,400

83

Which of the following is the best way to identify hazards at the workplace?

  1. ((a))

    Waiting for an event to occur

  2. ((b))

    Performing regular safety inspections

  3. ((c))

    Relying on employees to report accidents

  4. ((d))

    Ignoring small risks

Show Answer
Answer: ((a))

Waiting for an event to occur

84

Given below are two sets of numbers. In each set, performing certain mathematical operations on the first number gives the second number. Similarly, performing certain mathematical operations on the second number gives the third number, and so on. Which of the given options follows the same set of operations as the given sets?

<br>

(Note: Operations must be performed on whole numbers without breaking the numbers into their component digits. For example, take 13. Operations such as addition, subtraction, multiplication, etc. can be performed on 13. Breaking 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not permitted.)

<br>

3-9-12-24; 4-16-20-40

  1. ((a))

    9-2-11-24

  2. ((b))

    1-1-2-4

  3. ((c))

    6-12-18-34

  4. ((d))

    7-49-56-122

Show Answer
Answer: ((a))

9-2-11-24

85

Which of the following will verify the credentials and documents of applicants uploaded on the National Scholarship Portal?

  1. ((a))

    National Scholarship Portal

  2. ((b))

    The University/Institute in which the applicant is studying.

  3. ((c))

    Third Party

  4. ((d))

    Government

Show Answer
Answer: ((a))

National Scholarship Portal

86

The average of three numbers is 20. If two numbers are 16 and 24, find the third number.

  1. ((a))

    22

  2. ((b))

    21

  3. ((c))

    20

  4. ((d))

    19

Show Answer
Answer: ((a))

22

87

Which of the following statements is/are true?

Statement 1: Heat conductors allow heat to pass through them easily.

Statement 2: All plastics are good conductors of heat.

  1. ((a))

    Only statement 1

  2. ((b))

    Only statement 2

  3. ((c))

    Neither statement 1 nor statement 2

  4. ((d))

    Both statement 1 and statement 2

Show Answer
Answer: ((a))

Only statement 1

88

In the following number-pairs, the second number is obtained by performing certain mathematical operations on the first number. What number should be replaced by X and Y so that the pattern followed by the two numbers to the left of :: is the same as the pattern followed by the two numbers to the right of ::?

(Note: Operations must be performed on whole numbers, without breaking the numbers into their component digits. For example, take 13. Operations such as addition/subtraction/multiplication can be performed on 13. Breaking 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not permitted.)

X: 85 :: 36: Y

  1. ((a))

    x = 44, Y = 73

  2. ((b))

     x = 42, Y = 73

  3. ((c))

     x = 43, Y = 77

  4. ((d))

     x = 42, Y = 71

Show Answer
Answer: ((a))

x = 44, Y = 73

89

Jaspreet deposited ₹58,550 at 20% annual interest rate compounded annually. What is the total amount (in ₹) Jaspreet will receive after 2 years ?

  1. ((a))

    84,700

  2. ((b))

    84,312

  3. ((c))

    84,735

  4. ((d))

    83,876

Show Answer
Answer: ((a))

84,700

90

Rinku travels 136 meters in his car in 17 seconds. Find his speed (in km/hr).

  1. ((a))

    11.6

  2. ((b))

    17

  3. ((c))

    28.8

  4. ((d))

    26

Show Answer
Answer: ((a))

11.6

91

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

893 891 889 887 ? 883

  1. ((a))

    986

  2. ((b))

    885

  3. ((c))

    985

  4. ((d))

    886

Show Answer
Answer: ((a))

986

92

Ten people are sitting in two parallel rows, five in each row, in such a way that there is an equal distance between adjacent persons.

Row I contains A, B, C, D, and E, all of whom are facing south. Row II contains R, S, T, U and V, all of whom are facing north. Thus, each person faces a person from the other row. A sits at the right end of his row and faces U. R sits in the middle of his row and faces C. E sits between C and D, facing T. S sits at the right end of his row.

Who sits exactly opposite B?

  1. ((a))

    T

  2. ((b))

    R

  3. ((c))

    U

  4. ((d))

    V

Show Answer
Answer: ((a))

T

93

What type of thermometer is used to measure the internal temperature of ice?

  1. ((a))

    Digital thermometer

  2. ((b))

    Clinical thermometer

  3. ((c))

    Infrared thermometer

  4. ((d))

    Laboratory Thermometer

Show Answer
Answer: ((a))

Digital thermometer

94

An ammeter with a range of 0 to 10 A reads a current of 7.5 A. If its actual value is 6.2 A, the relative error is ________.

  1. ((a))

    13%

  2. ((b))

    17.33%

  3. ((c))

    20.96%

  4. ((d))

    4.8%

Show Answer
Answer: ((a))

13%

95

The average of 5 results is 51 and the average of the first 4 of them is 50. The 5th result is.

  1. ((a))

    55

  2. ((b))

    50

  3. ((c))

    51

  4. ((d))

    54

Show Answer
Answer: ((a))

55

96

A copper spoon is dipped in hot water. What happens to the other end?

  1. ((a))

    It gets heated by conduction.

  2. ((b))

    It cools down by conduction.

  3. ((c))

    It gets heated by convection.

  4. ((d))

    It cools down by convection.

Show Answer
Answer: ((a))

It gets heated by conduction.

97

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which of the given letter-clusters does not belong to that group? (Note: The odd letter-cluster is not based on the number of consonants/vowels or their position in the letter-cluster.)

  1. ((a))

    GMOT

  2. ((b))

    FLNS

  3. ((c))

    NTVB

  4. ((d))

    LRTY

Show Answer
Answer: ((a))

GMOT

98

A rod of length 89\frac{8}{9} meters breaks into two pieces. If one piece is 13\frac{1}{3} meters long, find the length (in m) of the other piece.

  1. ((a))

    29\frac{2}{9}

  2. ((b))

    79\frac{7}{9}

  3. ((c))

    59\frac{5}{9}

  4. ((d))

    49\frac{4}{9}

Show Answer
Answer: ((a))

29\frac{2}{9}

99

Four 4-ohm resistors are connected in parallel. These four parallel resistors are then connected in series with a 9-ohm resistor. Find the equivalent resistance.

  1. ((a))

    10 ohm 

  2. ((b))

    2 ohm 

  3. ((c))

    3 ohm 

  4. ((d))

    1  ओम

Show Answer
Answer: ((a))

10 ohm 

100

An object weighs 60 N on Earth. What will be its weight on the surface of the Moon?

  1. ((a))

    600 N

  2. ((b))

    10 N

  3. ((c))

    6 N

  4. ((d))

    60 N

Show Answer
Answer: ((a))

600 N

Part B (75 questions)

101

A circuit consists of three resistors; 15 ohms, 10 ohms, and 20 ohms. The 15-ohm resistor is in series with the parallel combination of the 10-ohm and 20-ohm resistors. If a 24 V battery is applied across the circuit, what is the total current flowing through the circuit?

  1. ((a))

    1.1 A

  2. ((b))

    2.1 A

  3. ((c))

    3.1 A

  4. ((d))

    0.1 A

Show Answer
Answer: ((a))

1.1 A

102

What is the main function of a master cylinder in a braking system?

  1. ((a))

    To measure the brake fluid level

  2. ((b))

    To control the engine speed 

  3. ((c))

    To build up hydraulic pressure to operate the brakes

  4. ((d))

    To absorb vibrations from the road

Show Answer
Answer: ((a))

To measure the brake fluid level

103

Which of the following materials CANNOT be welded using the CO2 welding process?

  1. ((a))

    Aluminium

  2. ((b))

    Magnesium

  3. ((c))

    Stainless steel

  4. ((d))

    Carbon steel 

Show Answer
Answer: ((a))

Aluminium

104

Rivets are typically made from what type of material?

  1. ((a))

    Ductile materials

  2. ((b))

    Elastic materials

  3. ((c))

    Rigid materials

  4. ((d))

    Brittle materials

Show Answer
Answer: ((a))

Ductile materials

105

A circular hole of radius 3 cm is cut from a rectangular sheet of dimensions 12 cm × 10 cm. Find the remaining area.

(Take π = 3.14)

  1. ((a))

    75.74 cm²

  2. ((b))

    95.86 cm²

  3. ((c))

    100 cm²

  4. ((d))

    91.74 cm²

Show Answer
Answer: ((a))

75.74 cm²

106

Arrange the following steps in the correct order to draw an equilateral triangle with each side of 35 mm.

  1. Join CA and CB.
  2. Draw a line and mark AB 35 mm as the side of the triangle.
  3. With radius AB and center A and B, draw arcs cutting at C.
  4. ABC is the required triangle.
  1. ((a))

    1, 2, 4, 3

  2. ((b))

    3, 2, 1, 4

  3. ((c))

    2, 1, 3, 4

  4. ((d))

    2, 3, 1, 4

Show Answer
Answer: ((a))

1, 2, 4, 3

107

According to BIS SP 46-2003, which of the following applications is correctly represented by a chain-thin line in engineering drawings?

  1. ((a))

    Center lines

  2. ((b))

    Visible edges

  3. ((c))

    Dimension lines

  4. ((d))

    Hidden edges

Show Answer
Answer: ((a))

Center lines

108

A mechanism that can split the power of a propeller shaft to the rear axle and produce variation in the speed of rear wheels when the vehicle takes a turn is called a/an: 

  1. ((a))

    automatic clutch unit

  2. ((b))

    differential unit

  3. ((c))

    torque convertor

  4. ((d))

    integral unit

Show Answer
Answer: ((a))

automatic clutch unit

109

Oxidation in oxy-acetylene welding can lead to _____. 

  1. ((a))

    increased strength

  2. ((b))

    porosity and oxide defects

  3. ((c))

    better weld appearance

  4. ((d))

    improved ductility

Show Answer
Answer: ((a))

increased strength

110

The temperature of the air after compression stroke in a CI engine is: 

  1. ((a))

    ambient temperature only

  2. ((b))

    less than ambient temperature

  3. ((c))

    high enough to auto-ignite the fuel without any external ignition source

  4. ((d))

    high but not enough to ignite the fuel as spark plug is used to ignite the fuel

Show Answer
Answer: ((a))

ambient temperature only

111

What should be done if the air filter element of the dry-type air cleaner is clogged?

  1. ((a))

    Wash it with detergent

  2. ((b))

    Replace it

  3. ((c))

    Clean it with compressed air

  4. ((d))

    Inspect it visually

Show Answer
Answer: ((a))

Wash it with detergent

112

What will happen if the new oil filter is not soaked in oil before installing it when changing the engine oil?

  1. ((a))

    Engine noise increases

  2. ((b))

    Engine overheats

  3. ((c))

    Oil level drops

  4. ((d))

    Filter clogs

Show Answer
Answer: ((a))

Engine noise increases

113

What is the name of the tool used for force amplification? 

  1. ((a))

    Lever

  2. ((b))

    Wheel

  3. ((c))

    Allen key

  4. ((d))

    Screw driver

Show Answer
Answer: ((a))

Lever

114

When selecting a sheet size for an original drawing, what should be the primary consideration?

  1. ((a))

    The orientation of the drawing (horizontal or vertical).

  2. ((b))

    The size of the reproduction.

  3. ((c))

    The standard size of the drawing office.

  4. ((d))

    The clarity and resolution required.

Show Answer
Answer: ((a))

The orientation of the drawing (horizontal or vertical).

115

What is the correct name of the top portion of the valve that interacts with the camshaft during operation of the engine?

  1. ((a))

    Tip

  2. ((b))

    Butterfly

  3. ((c))

    Mushroom

  4. ((d))

    Puppet

Show Answer
Answer: ((a))

Tip

116

Which of the following is the correct expression for power developed at the crankshaft in terms of mechanical efficiency?

Consider BP - brake power, IP - Indicated power

  1. ((a))

    IP=Mechanical efficiency×PB\mathrm{IP = Mechanical~ efficiency \times PB}

  2. ((b))

    BP=(Mechanical efficiency+IP)100\mathrm{BP=\frac{(Mechanical ~efficiency + IP)}{100}}

  3. ((c))

    BP=Mechanical efficiency100\mathrm{BP=\frac{Mechanical ~efficiency}{100}}

  4. ((d))

    BP=IP×Mechanical efficiency\mathrm{BP = IP \times Mechanical~ efficiency }

Show Answer
Answer: ((a))

IP=Mechanical efficiency×PB\mathrm{IP = Mechanical~ efficiency \times PB}

117

Which of the following files is used for filing narrow grooves and angles above 10°?

  1. ((a))

    Square file

  2. ((b))

    Triangular file

  3. ((c))

    Half round file

  4. ((d))

    Knife-edge file

Show Answer
Answer: ((a))

Square file

118

Which of the following instruments works on the principle of the magnification of the small movement of the plunger or stylus that is converted into a rotary motion of the pointer on a circular scale?

  1. ((a))

    Pressure gauge

  2. ((b))

    Dial test indicator

  3. ((c))

    Vernier caliper

  4. ((d))

    Micrometer

Show Answer
Answer: ((a))

Pressure gauge

119

In what kind of applications are spot, seam, and projection welding frequently used?

  1. ((a))

    Joining thin sheets in the manufacturing of vehicles and machinery 

  2. ((b))

    Welding dissimilar metals

  3. ((c))

    Joining thick steel plates

  4. ((d))

    Creating intricate metal sculptures

Show Answer
Answer: ((a))

Joining thin sheets in the manufacturing of vehicles and machinery 

120

What is the main purpose of a carburetor in a gasoline engine?

  1. ((a))

    Atomising and vaporising

  2. ((b))

    Igniting the fuel-air mixture

  3. ((c))

    Storing fuel for the engine

  4. ((d))

    Cooling the engine

Show Answer
Answer: ((a))

Atomising and vaporising

121

What is the advantage of giving heat treatment to a material?

  1. ((a))

    To make surgical knives of sharp edges

  2. ((b))

    To change it from one element to another element

  3. ((c))

    To decrease the melting point of the material

  4. ((d))

    To increase the weight of the material 

Show Answer
Answer: ((a))

To make surgical knives of sharp edges

122

Which of the following parts of a file is the part fitted to the tang for holding the file? 

  1. ((a))

    Tip or Point

  2. ((b))

    Tang

  3. ((c))

    Handle

  4. ((d))

    Edge

Show Answer
Answer: ((a))

Tip or Point

123

Which of the following options is correct when the pressure plate position is such that the cushion spring of clutch is NOT compressed?

  1. ((a))

    The clutch is open.

  2. ((b))

    It is in the partial engagement phase.

  3. ((c))

    The clutch is closed.

  4. ((d))

    It is in the engagement phase.

Show Answer
Answer: ((a))

The clutch is open.

124

In a diesel engine, heat is supplied at which of the following thermodynamic processes?

  1. ((a))

    At constant pressure process

  2. ((b))

    At constant temperature process

  3. ((c))

    At constant volume process

  4. ((d))

    At adiabatic compression process

Show Answer
Answer: ((a))

At constant pressure process

125

Gaskets, seals and spacers are made using:

  1. ((a))

    pin punch

  2. ((b))

    prick punch

  3. ((c))

    centre punch

  4. ((d))

    hollow punch

Show Answer
Answer: ((a))

pin punch

126

What is the purpose of an emergency evacuation plan?

  1. ((a))

    To avoid safety drills

  2. ((b))

    To ensure safe and orderly evacuation during emergencies

  3. ((c))

    To allow workers to leave early

  4. ((d))

    To increase productivity

Show Answer
Answer: ((a))

To avoid safety drills

127

What is the main difference between a double piston with step bore and a double piston with straight bore wheel cylinder?

  1. ((a))

    The step bore operates without hydraulic pressure.

  2. ((b))

    The step bore uses a single piston.

  3. ((c))

    The step bore does not use brake shoes.

  4. ((d))

    The step bore has pistons with different diameters.

Show Answer
Answer: ((a))

The step bore operates without hydraulic pressure.

128

In a velocity-time graph, the negative slope represents _____. 

  1. ((a))

    distance

  2. ((b))

    displacement

  3. ((c))

    acceleration

  4. ((d))

    retardation

Show Answer
Answer: ((a))

distance

129

If the current flowing through a conductor is 5 A and the resistance of the conductor is 10 ohms, what will be the voltage across the conductor, according to Ohm's Law? 

  1. ((a))

    15 V

  2. ((b))

    10 V

  3. ((c))

    50 V

  4. ((d))

    5 V

Show Answer
Answer: ((a))

15 V

130

Which of the following is NOT the correct characteristic of an I-head combustion chamber used in a petrol engine?

  1. ((a))

    I-head has higher surface to volume ratio and therefore there is a high amount of heat loss. 

  2. ((b))

    I-head has less flame travel length and hence there is a greater freedom from knock.

  3. ((c))

    I-head is superior to an L-head engine at high compression ratios.

  4. ((d))

    I-head has a higher volumetric efficiency from larger valves or valve lifts.

Show Answer
Answer: ((a))

I-head has higher surface to volume ratio and therefore there is a high amount of heat loss. 

131

The unit for specific gravity is _____. 

  1. ((a))

    g/cm3

  2. ((b))

    kg/m3

  3. ((c))

    no unit (dimensionless)

  4. ((d))

    m/s2

Show Answer
Answer: ((a))

g/cm3

132

Which of the following types of lube oils are used in airline industries? 

  1. ((a))

    Natural petroleum lubricants

  2. ((b))

    Synthetic lubricants

  3. ((c))

    Grease and bee wax lubricants

  4. ((d))

    Biodiesel lubricants

Show Answer
Answer: ((a))

Natural petroleum lubricants

133

What should you do to ensure your personal safety at work?

  1. ((a))

    Take risks to finish tasks quickly.

  2. ((b))

    Ignore warning signs and instructions.

  3. ((c))

    Work in a hurry without checking equipment.

  4. ((d))

    Wear personal protective equipment. 

Show Answer
Answer: ((a))

Take risks to finish tasks quickly.

134

Which of the following metals is NOT used for manufacturing of piston bearing?

  1. ((a))

    Lead

  2. ((b))

    Copper

  3. ((c))

    Silicon

  4. ((d))

    Cast iron

Show Answer
Answer: ((a))

Lead

135

Which type of gear applies in a car when the engine is running and the clutch is engaged, and the clutch shaft gear drives the drive gear of the lay shaft and thus lay shaft also rotates and the main shaft remains stationary as no gears in main shaft are engaged with lay shaft gears?

  1. ((a))

    Neutral gear

  2. ((b))

    Reverse gear

  3. ((c))

    Top gear

  4. ((d))

    First gear

Show Answer
Answer: ((a))

Neutral gear

136

Which of the following vices consists of a handle and a small collet chuck at one end?

  1. ((a))

    Pipe vice

  2. ((b))

    Toolmaker’s vice

  3. ((c))

    Hand vice

  4. ((d))

    Pin vice

Show Answer
Answer: ((a))

Pipe vice

137

Why is it important for every person to follow safety procedures in the workplace?

  1. ((a))

    To minimise risks and avoid accidents

  2. ((b))

    To reduce operational costs significantly

  3. ((c))

    To limit the need for frequent supervision

  4. ((d))

    To increase overall production efficiency

Show Answer
Answer: ((a))

To minimise risks and avoid accidents

138

What is the sum of (38)(\frac{3}{8}) + (512)(\frac{5}{12})

  1. ((a))

    (1924)(\frac{19}{24})

  2. ((b))

    (820)(\frac{8}{20})

  3. ((c))

    (712)(\frac{7}{12})

  4. ((d))

    (1724)(\frac{17}{24})

Show Answer
Answer: ((a))

(1924)(\frac{19}{24})

139

Which of the following hand-operated drilling machines is used for drilling small diameter holes up to 6 mm?

  1. ((a))

    Breast drilling machine

  2. ((b))

    Bevel gear type drilling machine

  3. ((c))

    Electric hand drill

  4. ((d))

    Ratchet drilling machine

Show Answer
Answer: ((a))

Breast drilling machine

140

The percentage of energy loss per unit deformation from friction happening inside the rubber, which creates heat build-up in the rubber, and is measured as in terms of the temperature, is known as _____. 

  1. ((a))

    stress-strain test

  2. ((b))

    resilience

  3. ((c))

    creep

  4. ((d))

    hysteresis

Show Answer
Answer: ((a))

stress-strain test

141

Based on the given diagram, identify the type of jack depicted.

  1. ((a))

    Light weight screw jack (manual type lifting jack) 

  2. ((b))

    Axle stand

  3. ((c))

    Heavy duty bottle type hydraulic jack

  4. ((d))

    Trolley type hydraulic jack

Show Answer
Answer: ((a))

Light weight screw jack (manual type lifting jack) 

142

How are the steering arms set to achieve the Ackerman angle?

  1. ((a))

    Slanted away from vehicle centre

  2. ((b))

    Slanted towards vehicle centre

  3. ((c))

    At right angle to spindle body

  4. ((d))

    Parallel to spindle body

Show Answer
Answer: ((a))

Slanted away from vehicle centre

143

Which of the following statements is INCORRECT about the four-stroke diesel engine?

  1. ((a))

    In C.I. engines, air-fuel mixture is sucked during the stroke and the fuel is injected in the cylinder near the end of the compression stroke.

  2. ((b))

    The operation of C.I. engines (or diesel engines) is practically the same as those of S.I. engines.

  3. ((c))

    In C.I. engines, only air is sucked during the stroke and the fuel is injected in the cylinder near the end of the compression stroke.

  4. ((d))

    Cycles in both petrol and diesel engines consist of suction, compression, ignition, expansion and exhaust.

Show Answer
Answer: ((a))

In C.I. engines, air-fuel mixture is sucked during the stroke and the fuel is injected in the cylinder near the end of the compression stroke.

144

In a lead-acid battery, what is the chemical composition of the material used for the positive plate during discharge?

  1. ((a))

    Sulphuric acid (H₂SO₄)

  2. ((b))

    Lead sulfate (PbSO₄)

  3. ((c))

    Lead (Pb)

  4. ((d))

    Lead dioxide (PbO₂)

Show Answer
Answer: ((a))

Sulphuric acid (H₂SO₄)

145

In an F-shaped combustion chamber, which of the following parts is generally NOT located on the extended side of the combustion chamber in a petrol engine?

  1. ((a))

    Spark plug

  2. ((b))

    Inlet valve

  3. ((c))

    Camshaft

  4. ((d))

    Outlet valve

Show Answer
Answer: ((a))

Spark plug

146

What is the primary reason for electrical injuries when a person comes in contact with electrical equipment?

  1. ((a))

    Devices are used for too long.

  2. ((b))

    Electrical equipment is not properly grounded.

  3. ((c))

    Current flows through the body causing harm.

  4. ((d))

    Electrical devices are too powerful.

Show Answer
Answer: ((a))

Devices are used for too long.

147

Which of the following methods helps the easier assembly and disassembly by providing a more efficient way to fit the connecting rod around the crankshaft journal, particularly in tight engine compartment, in an internal combustion engine?

  1. ((a))

    Big end split orthogonally on a connecting rod

  2. ((b))

    Small end trimming linearly on a connecting rod

  3. ((c))

    Big end split obliquely on a connecting rod

  4. ((d))

    Small end union linearly on a connecting rod

Show Answer
Answer: ((a))

Big end split orthogonally on a connecting rod

148

In which part of the IC engine are the cylinder liners fitted?

  1. ((a))

    Cylinder ​block

  2. ((b))

    ​Piston

  3. ((c))

    Cylinder head

  4. ((d))

    Crankcase

Show Answer
Answer: ((a))

Cylinder ​block

149

Which of the following is an important safety measure during a power failure?

  1. ((a))

    Using candles for lighting

  2. ((b))

    Continuing to use equipment without verifying power status

  3. ((c))

    Ensuring all machines and electrical equipment are turned off

  4. ((d))

    Ignoring alarm systems

Show Answer
Answer: ((a))

Using candles for lighting

150

Which of the following type of lubricants are used as solid particles?

  1. ((a))

    Graphite

  2. ((b))

    Solid wax

  3. ((c))

    Silica

  4. ((d))

    Grease

Show Answer
Answer: ((a))

Graphite

151

A type of internal spring force expands a piston ring based on the design and properties of the material used. It is determined by ______. 

  1. ((a))

    forced piston ring gap

  2. ((b))

    compressed spring ring gap

  3. ((c))

    free piston ring gap 

  4. ((d))

    compressed ring gap

Show Answer
Answer: ((a))

forced piston ring gap

152

Which of the following types of pliers is used to shape loops in wires and to form curves in light metal strips?

  1. ((a))

    Round nose pliers

  2. ((b))

    Slip-joint pliers

  3. ((c))

    End cutting pliers

  4. ((d))

    Flat nose pliers

Show Answer
Answer: ((a))

Round nose pliers

153

What is a key advantage of using MOSFETs in electronic circuits compared to other types of transistors?

  1. ((a))

    High input impedance and low power consumption

  2. ((b))

    Ability to handle higher voltages and currents than BJTs

  3. ((c))

    High frequency response

  4. ((d))

    Ability to amplify both AC and DC signals

Show Answer
Answer: ((a))

High input impedance and low power consumption

154

After brazing, hammering the joint serves to _________.

  1. ((a))

    check for leakages and remove flux

  2. ((b))

    increase the strength

  3. ((c))

    improve the appearance

  4. ((d))

    reduce the melting point

Show Answer
Answer: ((a))

check for leakages and remove flux

155

Which of the following designs have the advantage of effectively preventing contact slippage and axial misplacement of the connecting rod cover and connecting rod body?

  1. ((a))

    Curvilinear cut design

  2. ((b))

    Oval cut design

  3. ((c))

    Straight cut design

  4. ((d))

    Obliquely cut design

Show Answer
Answer: ((a))

Curvilinear cut design

156

When does a vacuum booster create a vacuum?

  1. ((a))

    When the engine is off, and brake is applied

  2. ((b))

    When the engine is running, and the brake is not applied

  3. ((c))

    When the fuel level is low

  4. ((d))

    When the brake is applied

Show Answer
Answer: ((a))

When the engine is off, and brake is applied

157

Which of the following elements is used in lubrication oil as an anti-wear additive?

  1. ((a))

    Barium (Ba)

  2. ((b))

    Calcium (Ca)

  3. ((c))

    Boron (B)

  4. ((d))

    Copper (Cu)

Show Answer
Answer: ((a))

Barium (Ba)

158

Which of the following steps is INCORRECT for micrometer adjustment?

  1. ((a))

    Insert the large end of wrench in the hole on the external cylinder.

  2. ((b))

    Find set screw and loosen it.

  3. ((c))

    Use the wrench to rotate the cylinder until zero is aligned.

  4. ((d))

    Open the micrometer using friction stop.

Show Answer
Answer: ((a))

Insert the large end of wrench in the hole on the external cylinder.

159

Which of the following organisations is responsible for enforcing workplace safety regulations in India?

  1. ((a))

    Directorate General of Factory Advice Service and Labour Institutes (DGFASLI)

  2. ((b))

    Environmental Protection Agency (EPA)

  3. ((c))

    Food and Drug Administration (FDA)

  4. ((d))

    World Health Organization (WHO)

Show Answer
Answer: ((a))

Directorate General of Factory Advice Service and Labour Institutes (DGFASLI)

160

What is the result of not providing adequate ignition timing advance when using weak mixtures?

  1. ((a))

    Increased power output

  2. ((b))

    Better fuel vaporisation

  3. ((c))

    Engine overheating and misfiring

  4. ((d))

    Lower fuel consumption

Show Answer
Answer: ((a))

Increased power output

161

What is the limiting value of compression ratio on which usually a petrol engine works?

  1. ((a))

    Compression ratio = 22

  2. ((b))

    Compression ratio = 14

  3. ((c))

    Compression ratio = 6

  4. ((d))

    Compression ratio = 8

Show Answer
Answer: ((a))

Compression ratio = 22

162

Which of the following statements is correct about engine valves?

  1. ((a))

    The camshaft and its associated parts control the flame of sparks during ignition of the enigne.

  2. ((b))

    Poppet or mushroom valves are commonly found in two stroke engines for their remarkable features.

  3. ((c))

    The valve’s head is perfectly positioned at a 30-45 degree angle that ideally fits with the valve seat, creating a firm seal.

  4. ((d))

    Valves with their conical shapes control the flow of the entry of gasses into an engine.

Show Answer
Answer: ((a))

The camshaft and its associated parts control the flame of sparks during ignition of the enigne.

163

A tube-like structure lies between a piston and cylinder wall that regulates the flow of air and fuel inside the cylinder. This valve has a small hole in the side that promptly lines up with the hole of a cylinder. This valve is known as:

  1. ((a))

    sleeve valve

  2. ((b))

    butterfly valve

  3. ((c))

    valve in form of port

  4. ((d))

    poppet valve

Show Answer
Answer: ((a))

sleeve valve

164

The tandem master cylinder is also known as _______________. 

  1. ((a))

    a dual-line brake

  2. ((b))

    an electric brake

  3. ((c))

    a manual brake

  4. ((d))

    a single-line brake

Show Answer
Answer: ((a))

a dual-line brake

165

What is the use of a jack?

  1. ((a))

    To start the vehicle’s engine

  2. ((b))

    To lift and support a vehicle during repairs

  3. ((c))

    To increase the vehicle’s speed

  4. ((d))

    To provide additional braking power

Show Answer
Answer: ((a))

To start the vehicle’s engine

166

Which of the following systems is used to transmit engine torque to the driving wheels to drive a vehicle on the road?

  1. ((a))

    Four bar chain mechanism

  2. ((b))

    Steering system

  3. ((c))

    Transmission system

  4. ((d))

    Differential gear mechanism

Show Answer
Answer: ((a))

Four bar chain mechanism

167

Non-functional dimensions are _______________. 

  1. ((a))

    directly derived from the values given on a drawing

  2. ((b))

    essential for the function of the space or component

  3. ((c))

    derived from the values of the related features of a drawing

  4. ((d))

    not essential for the function of the space or component

Show Answer
Answer: ((a))

directly derived from the values given on a drawing

168

What should be done if oil or grease is found on the clutch lining?

  1. ((a))

    Replace new lining

  2. ((b))

    Tighten the pressure spring

  3. ((c))

    Clean with petrol

  4. ((d))

    Apply more grease

Show Answer
Answer: ((a))

Replace new lining

169

When using a multimeter to measure current, which of the following is correct?

  1. ((a))

    The multimeter is connected directly to the power source.

  2. ((b))

    The multimeter is connected only across resistive components.

  3. ((c))

    The multimeter is connected in parallel with the load.

  4. ((d))

    The multimeter is connected in series with the load.

Show Answer
Answer: ((a))

The multimeter is connected directly to the power source.

170

Which of the following instruments is used for the measurement of piston ring end gap in the cylinder?

  1. ((a))

    Feeler gauge

  2. ((b))

    Dial gauge

  3. ((c))

    Micrometer

  4. ((d))

    Vernier caliper

Show Answer
Answer: ((a))

Feeler gauge

171

When measuring the resistance of a resistor using an ohmmeter, what does a reading of zero resistance indicate?

  1. ((a))

    The resistor is open-circuited.

  2. ((b))

    The resistor is short-circuited.

  3. ((c))

    The resistor is functioning normally.

  4. ((d))

    The ohmmeter is malfunctioning.

Show Answer
Answer: ((a))

The resistor is open-circuited.

172

A drawing instrument box is used to carry all ______________ instruments.

  1. ((a))

    casting

  2. ((b))

    screening

  3. ((c))

    drilling

  4. ((d))

    drawing

Show Answer
Answer: ((a))

casting

173

A vital component of a car's clutch system positioned on the clutch housing, which slides along a hollow shaft and moves through the clutch fork aided by hydraulic or cable pressure, is known as: 

  1. ((a))

    cushion spring

  2. ((b))

    lever

  3. ((c))

    fork arm

  4. ((d))

    clutch release bearing

Show Answer
Answer: ((a))

cushion spring

174

For what purpose are pins and clips used in engineering drawings?

  1. ((a))

    To support the drawing paper/tracing paper for making drawings

  2. ((b))

    To fasten the drawing sheet on to the drawing board firmly so that it does not shake

  3. ((c))

    To transfer dimensions and dividing lines into a number of equal parts

  4. ((d))

    To draw horizontal lines, parallel lines and to guide/hold the set squares

Show Answer
Answer: ((a))

To support the drawing paper/tracing paper for making drawings

175

If sin θ=35\mathrm{sin~\theta = \frac{3}{5}}, find cos θ\mathrm{cos~\theta}.

  1. ((a))

    54\frac{5}{4}

  2. ((b))

    35\frac{3}{5}

  3. ((c))

    45\frac{4}{5}

  4. ((d))

    34\frac{3}{4}

Show Answer
Answer: ((a))

54\frac{5}{4}

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