Official Paper

RRB ALP CBT-II (Heat Engine) Official Paper (Held On 06 May, 2025 Shift 2) (Previous Year Paper)

175 questions · 150 minutes · with answers · free

Attempt as Timed Mock Test

Part A (100 questions)

1

A can complete a work in 14 hours, while B can do the same work in 21 hours. A started working alone. After how many hours should B join A so that the total work is completed in 10 hours?

  1. ((a))

    3

  2. ((b))

    4.5

  3. ((c))

    3.5

  4. ((d))

    4

Show Answer
Answer: ((a))

3

2

Why is regular maintenance of HVAC systems considered a medium ECO?

  1. ((a))

    It decreases the system's energy consumption.

  2. ((b))

    It prevents overheating of the system.

  3. ((c))

    It increases the cost of energy.

  4. ((d))

    It speeds up system breakdowns.

Show Answer
Answer: ((a))

It decreases the system's energy consumption.

3

The speed of a train is 144 km/hr. The distance covered by the train in 12 seconds is:

  1. ((a))

    480 m

  2. ((b))

    103 m

  3. ((c))

    518 m

  4. ((d))

    78 m

Show Answer
Answer: ((a))

480 m

4

In a certain code language, 'GOES' is coded as '8624' and 'SNYC' is coded as '3817'.

What is the code for 'S' in the given code language?

  1. ((a))

    8

  2. ((b))

    4

  3. ((c))

    3

  4. ((d))

    2

Show Answer
Answer: ((a))

8

5

In a certain code language, 'BOAT' is coded as '8654' and 'AIDS' is coded as '3517'.

What is the code for 'A' in the given code language?

  1. ((a))

    6

  2. ((b))

    5

  3. ((c))

    3

  4. ((d))

    8

Show Answer
Answer: ((a))

6

6

The weights (in kg) of 20 students of a class have been recorded as 35, 42, 56, 44, 55, 44, 36, 44, 49, 48, 55, 35, 44, 47, 49, 48, 56, 44, 37 and 35. The modal weight (in kg) of the class is:

  1. ((a))

    47

  2. ((b))

    37

  3. ((c))

    44

  4. ((d))

    45

Show Answer
Answer: ((a))

47

7

Pipes A and B can fill a rectangular tank in 40 minutes and 120 minutes, respectively. Pipe C can empty the completely filled same tank in 240 minutes. If pipes A, B and C are opened at the same time, then how many minutes will it take to fill the tank?

  1. ((a))

    342834\frac{2}{8}

  2. ((b))

    342734\frac{2}{7}

  3. ((c))

    322732\frac{2}{7}

  4. ((d))

    343734\frac{3}{7}

Show Answer
Answer: ((a))

342834\frac{2}{8}

8

Which of the following actions involves scientific work?

  1. ((a))

    Spending time conversing with friends

  2. ((b))

    Climbing up the stairs

  3. ((c))

    Watching a film

  4. ((d))

    Holding a large load on one's head while standing motionless

Show Answer
Answer: ((a))

Spending time conversing with friends

9

How is a voltmeter connected in a circuit to measure potential difference?

  1. ((a))

    In parallel across the points where potential difference is to be measured

  2. ((b))

    In series with the circuit

  3. ((c))

    Neither in series nor in parallel

  4. ((d))

    Directly to the power source only

Show Answer
Answer: ((a))

In parallel across the points where potential difference is to be measured

10

Find the minimum value of 2x 2 - 5x - 3 and also find x.

  1. ((a))
    • 6.125 and x = 1.25
  2. ((b))

    -6.125 and x = 0.25

  3. ((c))

    6.125 and x = 1.25

  4. ((d))

    6.125 and x = 1.2

Show Answer
Answer: ((a))
  • 6.125 and x = 1.25
11

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 letter-cluster DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

  1. ((a))

    CGXF

  2. ((b))

    UYPW

  3. ((c))

    QULS

  4. ((d))

    JNEL

Show Answer
Answer: ((a))

CGXF

12

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

AD8, FI16, KN24, ?

  1. ((a))

    OS32

  2. ((b))

    OR35

  3. ((c))

    PS35

  4. ((d))

    PS32

Show Answer
Answer: ((a))

OS32

13

Select the pair which follows the same pattern as that followed by the two sets of pairs given below. Both pairs follow the same pattern.

ARF: YTH

WVJ: UXL

  1. ((a))

    MEL: HZN

  2. ((b))

    SZN: QBP

  3. ((c))

    QEB: NBD

  4. ((d))

    KXF: HZH

Show Answer
Answer: ((a))

MEL: HZN

14

By how much is 60% of 50 greater than 45\frac{4}{5}of 35?

  1. ((a))

    2

  2. ((b))

    3

  3. ((c))

    4

  4. ((d))

    1

Show Answer
Answer: ((a))

2

15

Which of the following is NOT an SI unit?

  1. ((a))

    Hour

  2. ((b))

    Metre

  3. ((c))

    Mole

  4. ((d))

    Kilogram

Show Answer
Answer: ((a))

Hour

16

The speed of a bus is 6 metres/second. The distance (in kilometres) travelled by the bus in 8 hours and 20 minutes is:

  1. ((a))

    185

  2. ((b))

    180

  3. ((c))

    184

  4. ((d))

    175

Show Answer
Answer: ((a))

185

17

Three partners, A, B and C, shared the profit in a business in the proportion of 11: 13: 16. They invested their capitals for 7 months, 5 months and 12 months, respectively. What was the ratio of their capitals?

  1. ((a))

    165 :273 :140

  2. ((b))

    96: 135: 101

  3. ((c))

    3:5:8

  4. ((d))

    21:35:44

Show Answer
Answer: ((a))

165 :273 :140

18

T-Square is used to _______in engineering drawings.

  1. ((a))

    support the drawing paper/tracing paper for making drawings

  2. ((b))

    draw curved lines on drawing sheets

  3. ((c))

    draw horizontal lines, parallel lines and to guide/hold the setsquares

  4. ((d))

    transfer dimensions and dividing lines into a number of equal parts

Show Answer
Answer: ((a))

support the drawing paper/tracing paper for making drawings

19

Which of the following features is unique to Telegram compared to WhatsApp and Facebook Messenger?

  1. ((a))

    Voice and video calling capabilities

  2. ((b))

    End-to-end encryption for all messages

  3. ((c))

    Ability to create channels for broadcasting messages to large audiences

  4. ((d))

    Integration with Facebook for seamless sharing

Show Answer
Answer: ((a))

Voice and video calling capabilities

20

Calculate the resistance of the bulb filament if it draws 200 mA current from 220 V source.

  1. ((a))

    0Ω

  2. ((b))

    1100 Ω

  3. ((c))

    220 Ω

  4. ((d))

    44 Ω

Show Answer
Answer: ((a))

0Ω

21

Which of the following processes causes accumulation of heavy metals such as lead and mercury in soil?

  1. ((a))

    Ozone layer depletion

  2. ((b))

    Improper disposal of industrial wastes

  3. ((c))

    Water evaporation

  4. ((d))

    Natural soil formation

Show Answer
Answer: ((a))

Ozone layer depletion

22

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

WU5, SQ7, NL11, ?

  1. ((a))

    GE17

  2. ((b))

    HF13

  3. ((c))

    GE13

  4. ((d))

    HE15

Show Answer
Answer: ((a))

GE17

23

Which of the following statements is correct?

  1. ((a))

    All metals are poor conductors of heat.

  2. ((b))

    Plastic and wood allow heat to pass through them easily.

  3. ((c))

    Dry air is a good conductor of heat.

  4. ((d))

    Copper and aluminium are good conductors of heat

Show Answer
Answer: ((a))

All metals are poor conductors of heat.

24

If 24 joules of work is done in moving a charge of 2 coulombs across two points, then what will be the correct voltage across these two points?

  1. ((a))

    2 V

  2. ((b))

    12 V

  3. ((c))

    24 V

  4. ((d))

    48 V

Show Answer
Answer: ((a))

2 V

25

The two sides CB and BA of triangle ABC are produced to CE and BD, respectively, in such a way that angle DAC = 110° ; and angle ABE = 130° . Which of the following options is true?

  1. ((a))

    AC <AB < BC

  2. ((b))

    BC <AC <AB

  3. ((c))

    AB <AC <BC

  4. ((d))

    BC <AB < AC

Show Answer
Answer: ((a))

AC <AB < BC

26

The marked price of an item is ₹27,500. The shopkeeper gave two successive discounts: the first discount was 20%, and the second was 30% of the first discount rate. What is the selling price of the item (in rupees)?

  1. ((a))

    1,26,080

  2. ((b))

    20,860

  3. ((c))

    20,086

  4. ((d))

    20,680

Show Answer
Answer: ((a))

1,26,080

27

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

#: KHM:: OLQ: %

  1. ((a))

    #LIN, % = NKO

  2. ((b))

    #LIN, % = NLP

  3. ((c))

    #LIN, %= NKP

  4. ((d))

    #LIM, % = NKP

Show Answer
Answer: ((a))

#LIN, % = NKO

28

Which of the following statements is INCORRECT?

  1. ((a))

    In solids, heat transfer is typically carried out through conduction.

  2. ((b))

    Burning of feet on hot sand is an example of heat transfer by conduction.

  3. ((c))

    Conduction is the process of heat transfer that does not require any medium to transfer heat

  4. ((d))

    Conduction is the process of heat transfer from hotter body to colder body.

Show Answer
Answer: ((a))

In solids, heat transfer is typically carried out through conduction.

29

A man rides a bicycle from Point A to Point B in 10 minutes and comes back to Point A along the same path in 10 minutes. If the distance between Points A and B is 1 km, calculate his average velocity?

  1. ((a))

    3.3 m/s

  2. ((b))

    1.6 m/s

  3. ((c))

    0 m/s

  4. ((d))

    0.1 m/s

Show Answer
Answer: ((a))

3.3 m/s

30

What is the dimensional equation of mass density (p)?

  1. ((a))

    [ML-3T2]

  2. ((b))

    [M0 L³ T0]

  3. ((c))

    [ML-3T0]

  4. ((d))

    [M L-2 T0]

Show Answer
Answer: ((a))

[ML-3T2]

31

What is the kinetic energy possessed by an object having mass 25 kg and moving with a uniform velocity of 2 m s-¹?

  1. ((a))

    80 J

  2. ((b))

    50 J

  3. ((c))

    120 J

  4. ((d))

    100 J

Show Answer
Answer: ((a))

80 J

32

What is the value of 100 g in Sl units?

  1. ((a))

    1 kg

  2. ((b))

    0.1 kg

  3. ((c))

    100 kg

  4. ((d))

    10 kg

Show Answer
Answer: ((a))

1 kg

33

A mass m is moving with a velocity v and its kinetic energy is K. What will be the new kinetic energy if the velocity is doubled?

  1. ((a))

    2K

  2. ((b))

    K

  3. ((c))

    4 K

  4. ((d))

    K/2

Show Answer
Answer: ((a))

2K

34

Which of the following is a main greenhouse gas that is responsible for global warming?

  1. ((a))

    Nitrogen

  2. ((b))

    Helium

  3. ((c))

    Carbon Dioxide

  4. ((d))

    Oxygen

Show Answer
Answer: ((a))

Nitrogen

35

Which of the following tools is commonly used to support the 'Standardize' step in the 5S methodology?

  1. ((a))

    Labels and signs

  2. ((b))

    Cleaning supplies

  3. ((c))

    Floor markings

  4. ((d))

    Job cycle charts

Show Answer
Answer: ((a))

Labels and signs

36

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 letter-cluster DOES NOT belong to that group?

(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

  1. ((a))

    GMKT

  2. ((b))

    EKJR

  3. ((c))

    VBZI

  4. ((d))

    IOMV

Show Answer
Answer: ((a))

GMKT

37

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

Y13, F11, L9, Q7, U5, X3, ?

  1. ((a))

    22

  2. ((b))

    A1

  3. ((c))

    Z1

  4. ((d))

    Y1

Show Answer
Answer: ((a))

22

38

Given below are two sets of numbers. Both the sets are formed using the same mathematical equations or follow a common pattern. Which of the given options follows the same set of mathematical equations or patterns as the sets given in the question?

1333-1730-2199-2746-3377

218-345-514-731-1002

  1. ((a))

    123 - 146 - 171 - 198 - 227

  2. ((b))

    38 - 51 - 66 - 83 - 102

  3. ((c))

    3-10-29-66-127

  4. ((d))

    3 - 6 - 11 - 18 - 27

Show Answer
Answer: ((a))

123 - 146 - 171 - 198 - 227

39

Two sets of numbers are given below. In each set of numbers, certain mathematical operation(s) on the first number results in the second number. Similarly, certain mathematical operation(s) on the second number results in the third number and so on. Which of the given options follows the same set of operations as in the given sets?

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

988-494-444-534; 894-447-397-487

  1. ((a))

    138 - 69 - 14 - 98

  2. ((b))

    226 - 113 - 144 - 268

  3. ((c))

    586 - 293 - 244 - 328

  4. ((d))

    682-341-291-381

Show Answer
Answer: ((a))

138 - 69 - 14 - 98

40

What is the first step to take in case of a power failure in a workshop?

  1. ((a))

    Continue working as usual

  2. ((b))

    Check if emergency lighting and backup power are functional

  3. ((c))

    Panic and leave the premises immediately

  4. ((d))

    Ignore the situation and wait for power to return

Show Answer
Answer: ((a))

Continue working as usual

41

Which of the following is an ethical concern related to Information Technology?

  1. ((a))

    Enhancement of communication channels

  2. ((b))

    Privacy violations and data breaches

  3. ((c))

    Reduction in administrative costs

  4. ((d))

    Increased accessibility to educational resources

Show Answer
Answer: ((a))

Enhancement of communication channels

42

Which term is used to describe the closeness of the measured value to the standard or true value?

  1. ((a))

    Mean

  2. ((b))

    Precision

  3. ((c))

    Approximate

  4. ((d))

    Accuracy

Show Answer
Answer: ((a))

Mean

43

Which of the following is NOT correct about Joule's law of heating?

  1. ((a))

    Heat produced in a resistor is directly proportional to the square of the current for a given resistance.

  2. ((b))

    Heat produced in a resistor is directly proportional to the time for which the current flows through the resistor.

  3. ((c))

    Heat produced in a resistor is directly proportional to the resistance for a given current.

  4. ((d))

    Heat produced in a resistor is inversely proportional to the square of the current for a given resistance.

Show Answer
Answer: ((a))

Heat produced in a resistor is directly proportional to the square of the current for a given resistance.

44

Which of the following terms is used to describe the pollutants that originate from identifiable sources, such as factories or vehicles?

  1. ((a))

    Non-point Source Pollution

  2. ((b))

    Random Pollution

  3. ((c))

    Point Source Pollution

  4. ((d))

    Radicle Pollution

Show Answer
Answer: ((a))

Non-point Source Pollution

45

How does installing energy-efficient windows in an old building affect energy consumption?

  1. ((a))

    It has no effect on fuel consumption.

  2. ((b))

    It causes indoor temperatures to rise.

  3. ((c))

    It reduces heating and cooling costs in the building.

  4. ((d))

    It increases the need for artificial lighting.

Show Answer
Answer: ((a))

It has no effect on fuel consumption.

46

Which of the following is generally the temperature range in a laboratory thermometer?

  1. ((a))

    -10°C to 110°C

  2. ((b))

    -10°C to 150°C

  3. ((c))

    -100°C to 130°C

  4. ((d))

    35°C to 42°C

Show Answer
Answer: ((a))

-10°C to 110°C

47

A refrigerator seller offers a discount of 10% on its listed price of ₹57,500 and still earns a profit of 15%. The cost price of the refrigerator is:

  1. ((a))

    ₹45,000

  2. ((b))

    ₹42,000

  3. ((c))

    ₹40,000

  4. ((d))

    ₹48,000

Show Answer
Answer: ((a))

₹45,000

48

A person saves 50% of his income. If his expenditure is 440, then his income (in ₹) is:

  1. ((a))

    600

  2. ((b))

    880

  3. ((c))

    920

  4. ((d))

    560

Show Answer
Answer: ((a))

600

49

Which of the following is the correct statement of Ohm's Law?

  1. ((a))

    If the potential difference across the two ends of a conductor is 1 V and the current through it is 1A, then the resistance of the conductor is 20.

  2. ((b))

    The potential difference across the ends of a conductor is inversely proportional to the current flowing through it.

  3. ((c))

    The potential difference across the ends of a conductor is directly proportional to the current flowing through it.

  4. ((d))

    Current through a resistor is directly proportional to its resistance.

Show Answer
Answer: ((a))

If the potential difference across the two ends of a conductor is 1 V and the current through it is 1A, then the resistance of the conductor is 20.

50

A shopkeeper sells sugar at 30 per kg, which he has bought at 24 per kg. Being dishonest, he also gives only y gm of sugar instead of 1000 gm that is mentioned on the weight. In this way, the shopkeeper manages to make an overall profit of 6623\frac{2}{3}%. What is the value of y?

  1. ((a))

    600

  2. ((b))

    720

  3. ((c))

    800

  4. ((d))

    750

Show Answer
Answer: ((a))

600

51

What is the SI unit for solid angle?

  1. ((a))

    Metre

  2. ((b))

    Candela

  3. ((c))

    Radian

  4. ((d))

    Steradian

Show Answer
Answer: ((a))

Metre

52

Eight people are sitting in two parallel rows containing 4 people each in such a way that there is equal distance between adjacent persons. In row 1-A, B, C and D are seated and all of them are facing south. In row 2-P, Q, R and S are seated and all of them are facing north. Thus each person faces another person from the other row. No one sits to the left of B. R faces the person who sits second to the right of D. C faces the person who is the immediate neighbour of Q and R, B does not face S. Who amongst the following faces P?

  1. ((a))

    D

  2. ((b))

    A

  3. ((c))

    B

  4. ((d))

    C

Show Answer
Answer: ((a))

D

53

Study the given graph and answer the question that follows.

<br>

What is the average profit percentage of the given years?

  1. ((a))

    44%

  2. ((b))

    43.4%

  3. ((c))

    44.1%

  4. ((d))

    45%

Show Answer
Answer: ((a))

44%

54

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

Statements:

I. All books are pencils.

II. All pencils are cardboards.

III. All cardboards are notebooks.

Conclusions:

I. Some notebooks are pencils.

II. Some cardboards are books.

III. Some notebooks are books.

  1. ((a))

    Only conclusions I and II follow.

  2. ((b))

    All conclusions I, II and III follow

  3. ((c))

    Only conclusions I and III follow.

  4. ((d))

    Only conclusions II and III follow.

Show Answer
Answer: ((a))

Only conclusions I and II follow.

55

What type of view is represented of the given machine component?

  1. ((a))

    Oblique view

  2. ((b))

    Orthographic view

  3. ((c))

    Perspective view

  4. ((d))

    Isometric view

Show Answer
Answer: ((a))

Oblique view

56

In order to resolve disputes arising from cyber crime, such as tampering with computer source documents, hacking the computer system, using password of another person and publishing sensitive personal data of others without their consent, a forum has been established by the Central Government (India) in accordance with the provisions contained under Section 48(1) of the Information Technology Act, 2000. What is the name of that forum?

  1. ((a))

    Cyber Appellate Tribunal

  2. ((b))

    National Cybercrime Reporting Station

  3. ((c))

    Cybercrime Reporting Tribunal

  4. ((d))

    Internet Crime Complaint Center

Show Answer
Answer: ((a))

Cyber Appellate Tribunal

57

When reporting a fire in an emergency, what is the most critical information to provide to emergency services?

  1. ((a))

    The weather conditions at the time of the fire

  2. ((b))

    How the fire started and if someone is injured or missing

  3. ((c))

    The likely cause of the fire and the building owner's name

  4. ((d))

    The colour of the smoke and the direction it is moving

Show Answer
Answer: ((a))

The weather conditions at the time of the fire

58

Why does a combination of two thin blankets keep you warmer in the winter than a single thick blanket?

  1. ((a))

    Two thin blankets allow more heat to escape, keeping you warmer.

  2. ((b))

    Two blankets create an additional insulating layer of air, reducing heat loss

  3. ((c))

    Two thin blankets generate more heat than one thick blanket.

  4. ((d))

    Two thin blankets absorb more heat from the surroundings than one thick blanket.

Show Answer
Answer: ((a))

Two thin blankets allow more heat to escape, keeping you warmer.

59

What is necessary for a circuit to have electric current flowing through it?

  1. ((a))

    A closed conducting path with a voltage source

  2. ((b))

    Only wire

  3. ((c))

    Only switch

  4. ((d))

    Only bulb

Show Answer
Answer: ((a))

A closed conducting path with a voltage source

60

Which of the following is NOT correct?

  1. ((a))

    An object moving with a constant velocity represents uniform motion.

  2. ((b))

    The motion of satellite around Earth in a circular orbit is uniform circular motion.

  3. ((c))

    A person jogging in the park is not an example of uniform circular motion.

  4. ((d))

    The distance-time graph of an object moving with uniform speed is not a straight line:

Show Answer
Answer: ((a))

An object moving with a constant velocity represents uniform motion.

61

Among three partners A, B and C in a business. The capital of B is equal to half the difference between thrice the capital of C and twice the capital of A. If at the end of the year, they received a profit of 25,415, what is the share of C (in)?

  1. ((a))

    9,166

  2. ((b))

    8,666

  3. ((c))

    11,666

  4. ((d))

    10,166

Show Answer
Answer: ((a))

9,166

62

E, F, G, H, P, Q, and R, are sitting around a circular table facing the centre. F sits third to the left of H. Only two people sit between H and G when counted from the right of H. Q is an immediate neighbor of G. P is NOT an immediate neighbour of H. E is an Immediate neighbour of Q. Who sits second to the left of E?

  1. ((a))

    H

  2. ((b))

    R

  3. ((c))

    G

  4. ((d))

    P

Show Answer
Answer: ((a))

H

63

The cost of painting a spherical ball at the rate of ₹2.50 per cm² is 13,860. What is the diameter of the ball? (Use π = 22/7)

  1. ((a))

    40 cm

  2. ((b))

    48 cm

  3. ((c))

    21 cm

  4. ((d))

    42 cm

Show Answer
Answer: ((a))

40 cm

64

In an electrical circuit, 'n' number of 10 Ohm resistors are connected in parallel. When one of the resistors is eliminated, the overall resistance of the circuit is __________.

  1. ((a))

    1n2\frac{1}{n^2}

  2. ((b))

    Zero

  3. ((c))

    1n\frac{1}{n}

  4. ((d))

    1(n−1)\frac{1}{(n-1)}

Show Answer
Answer: ((a))

1n2\frac{1}{n^2}

65

What is the ratio of areas between two consecutive format sheet sizes created by halving the length or doubling the width?

  1. ((a))

    2:1

  2. ((b))

    1:4

  3. ((c))

    1:2

  4. ((d))

    4:1

Show Answer
Answer: ((a))

2:1

66

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

47 D 25 A 5C2B9=?

  1. ((a))

    62

  2. ((b))

    60

  3. ((c))

    58

  4. ((d))

    56

Show Answer
Answer: ((a))

62

67

What is the primary purpose of netiquette in online communication?

  1. ((a))

    To ensure polite and respectful interactions

  2. ((b))

    To enhance internet connection speed

  3. ((c))

    To improve typing speed

  4. ((d))

    To increase the number of followers on social media

Show Answer
Answer: ((a))

To ensure polite and respectful interactions

68

The thickness of a thread is measured by a student using a microscope of magnification 100. After making 30 observations, he finds the average width of the thread is 5.7 mm. What is the estimated thickness of the thread?

  1. ((a))

    171 mm

  2. ((b))

    0.057 mm

  3. ((c))

    0.57 mm

  4. ((d))

    0.09 mm

Show Answer
Answer: ((a))

171 mm

69

The interest of (10r)2 in r time at rate r10\frac{r}{10}% is __________.

  1. ((a))

    r410\frac{r^4}{10}

  2. ((b))

    10r410r^4

  3. ((c))

    r420\frac{r^4}{20}

  4. ((d))

    r45\frac{r^4}{5}

Show Answer
Answer: ((a))

r410\frac{r^4}{10}

70

A force of 6 N is exerted on an object, resulting in its displacement of 2 m in the direction of the force. If the force is constant during the displacement, what is the work done in this case?

  1. ((a))

    25 J

  2. ((b))

    12 J

  3. ((c))

    3 J

  4. ((d))

    10 J

Show Answer
Answer: ((a))

25 J

71

If 21.6: x:: x: 29.4, and x > 0 then find the value of x.

  1. ((a))

    23.9

  2. ((b))

    23.3

  3. ((c))

    25.4

  4. ((d))

    25.2

Show Answer
Answer: ((a))

23.9

72

Which of the following statements is NOT true?

  1. ((a))

    Clinical thermometer should not be used to measure the temperature of boiling water.

  2. ((b))

    Clinical and laboratory thermometers are the same.

  3. ((c))

    The range of clinical thermometer is 35 to 42°C.

  4. ((d))

    Laboratory thermometer cannot be used to measure body temperature.

Show Answer
Answer: ((a))

Clinical thermometer should not be used to measure the temperature of boiling water.

73

Which of the following options is NOT a necessary characteristic of a kite?

  1. ((a))

    At least one diagonal is bisected by the other diagonal.

  2. ((b))

    The diagonals are perpendicular to each other.

  3. ((c))

    The pairs of opposite angles are bisected by the corresponding diagonals.

  4. ((d))

    At least one pair of opposite angles is congruent.

Show Answer
Answer: ((a))

At least one diagonal is bisected by the other diagonal.

74

A porter lifts a 10 kg luggage from the ground and places it on his head, 2.5 m above the ground. Calculate the work done by him on the luggage. (Take g = 10m s- 2)

  1. ((a))

    200 J

  2. ((b))

    100 J

  3. ((c))

    250 J

  4. ((d))

    250 N

Show Answer
Answer: ((a))

200 J

75

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

179 171 163? 147 139

  1. ((a))

    155

  2. ((b))

    157

  3. ((c))

    151

  4. ((d))

    153

Show Answer
Answer: ((a))

155

76

If x + y + z = 0 then find the value of x22yz+y22xz+z22xy\frac{x^2}{2yz} + \frac{y^2}{2xz} + \frac{z^2}{2xy}

  1. ((a))

    25\frac{2}{5}

  2. ((b))

    32\frac{3}{2}

  3. ((c))

    35\frac{3}{5}

  4. ((d))

    23\frac{2}{3}

Show Answer
Answer: ((a))

25\frac{2}{5}

77

In a certain code language, 'WIDE' is coded as '8694' and 'INKS' is coded as '3917', 7 What is the code for 'I' in the given code language?

  1. ((a))

    8

  2. ((b))

    3

  3. ((c))

    7

  4. ((d))

    9

Show Answer
Answer: ((a))

8

78

A shopkeeper allows a discount of 18% on the marked price of an article and sells it for 2,870. Find the marked price of the article.

  1. ((a))

    ₹3,200

  2. ((b))

    ₹3,350

  3. ((c))

    ₹3,460

  4. ((d))

    ₹3,500

Show Answer
Answer: ((a))

₹3,200

79

Which is the least number that must be subtracted from 5563 to make it exactly divisible by 18?

  1. ((a))

    5

  2. ((b))

    7

  3. ((c))

    3

  4. ((d))

    1

Show Answer
Answer: ((a))

5

80

Study the given table carefully and answer the question that follows.

Number of students who
Appeared for the examPassed the exam
Class IX10489
Class X6347

What was the total number of students who failed the exam from classes IX and X?

  1. ((a))

    21

  2. ((b))

    31

  3. ((c))

    28

  4. ((d))

    33

Show Answer
Answer: ((a))

21

81

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 one out is not based on the number of consonants/vowels or their position in the letter-cluster pair)

  1. ((a))

    QL-NT

  2. ((b))

    BW-YE

  3. ((c))

    KF-HM

  4. ((d))

    DY-AG

Show Answer
Answer: ((a))

QL-NT

82

Identify the orthographic symbol of a pipe fitting shown in the figure.

  1. ((a))

    Tee

  2. ((b))

    Cross

  3. ((c))

    Union

  4. ((d))

    Bend

Show Answer
Answer: ((a))

Tee

83

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

Statement:

Over the past year, respiratory illnesses have increased significantly in city W. According to a public health study, this increase is linked to the increase in the number of cars, which raises air pollution levels on the roads.

Conclusions:

I. Increased vehicular traffic contributes to higher levels of air pollution.

II. Improving public transportation will reduce respiratory illnesses in city W.

  1. ((a))

    Both conclusions I and II follow.

  2. ((b))

    Neither conclusion I nor II follows.

  3. ((c))

    Only conclusion II follows.

  4. ((d))

    Only conclusion 1 follows.

Show Answer
Answer: ((a))

Both conclusions I and II follow.

84

An object’s potential energy is equal to ________.

  1. ((a))

    Change in velocity

  2. ((b))

    Change in acceleration

  3. ((c))

    Transfer of energy

  4. ((d))

    Loss of energy

Show Answer
Answer: ((a))

Change in velocity

85

Which of the following is the primary reason for adopting scientifically designed methods for safely disposing of toxic waste from automobiles?

  1. ((a))

    To improve vehicle lifespan by minimising mechanical wear

  2. ((b))

    To increase vehicle performance by optimising engine efficiency

  3. ((c))

    To reduce fuel consumption and improve overall efficiency

  4. ((d))

    To protect human health from harmful fumes and dust in the air

Show Answer
Answer: ((a))

To improve vehicle lifespan by minimising mechanical wear

86

Given below are two sets of numbers. Both the sets are formed using the same mathematical equations or follow a common pattern. Which of the given options follows the same set of mathematical equations or patterns as the sets given in the question?

4-9-25-64-169; 16-49-121-324-841

  1. ((a))

    64 - 100 - 144 - 196 - 256

  2. ((b))

    16 - 36 - 64 - 100 - 144

  3. ((c))

    4 - 16 - 36 - 64 - 100

  4. ((d))

    64-225-529-1444-3721

Show Answer
Answer: ((a))

64 - 100 - 144 - 196 - 256

87

Examine the symbolic representation of the hole and rivet provided below. According to BIS SP 46-2003, what does this symbol represent?

  1. ((a))

    Drilled in the workshop

  2. ((b))

    Fitted in the workshop

  3. ((c))

    Drilled and fitted on-site

  4. ((d))

    Drilled on-site

Show Answer
Answer: ((a))

Drilled in the workshop

88

The ABC Association meeting will be held on the 2nd Sunday of next month. The registration fee is ₹50 per person. Participants will be provided meals at an additional cost of ₹24. If the number of people who paid for meals is 100 more than those who did not pay for meals, and the total amount collected from registrations and meals is ₹69,400, then how many people registered and how many meals should be prepared?

  1. ((a))

    1100 and 1100

  2. ((b))

    1100 and 600

  3. ((c))

    1100 and 50

  4. ((d))

    500 and 600

Show Answer
Answer: ((a))

1100 and 1100

89

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

62 73 87 104 124 ?

  1. ((a))

    142

  2. ((b))

    147

  3. ((c))

    134

  4. ((d))

    153

Show Answer
Answer: ((a))

142

90

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

Q16, O14, M12, K10, I8, ?

  1. ((a))

    G4

  2. ((b))

    H6

  3. ((c))

    G6

  4. ((d))

    J6

Show Answer
Answer: ((a))

G4

91

Which element is used in thermometers?

  1. ((a))

    Bromine

  2. ((b))

    Mercury

  3. ((c))

    Gallium

  4. ((d))

    Lead

Show Answer
Answer: ((a))

Bromine

92

Two trains are running in opposite directions at the same speed. The length of each train is 175 m. If they cross each other in 7 s, the speed of each train is:

  1. ((a))

    75 km/hr

  2. ((b))

    90 km/hr

  3. ((c))

    85 km/hr

  4. ((d))

    80 km/hr

Show Answer
Answer: ((a))

75 km/hr

93

If the length, the breadth, and the height of a cuboid are 5 m, 2 m, and 50 cm, respectively, then find its volume.

  1. ((a))

    500 m³

  2. ((b))

    20 m³

  3. ((c))

    50m³

  4. ((d))

    5 m³

Show Answer
Answer: ((a))

500 m³

94

If an electric load draws a current of 2 A for 1 second, then calculate the number of electrons (with charge 1.6 × 10-19 °c ) passing through the load.

  1. ((a))

    1.25x10 20

  2. ((b))

    0.25 x 1019

  3. ((c))

    0.25 x 1020

  4. ((d))

    1.25 x1019

Show Answer
Answer: ((a))

1.25x10 20

95

An electric heater of resistance 50 uses a current of 3 A. Determine the heat generated in 20 seconds.

  1. ((a))

    5000 J

  2. ((b))

    1000 J

  3. ((c))

    9000 J

  4. ((d))

    60 J

Show Answer
Answer: ((a))

5000 J

96

Which of the following keyboard shortcuts on a Windows 10 home screen opens the item's properties?

  1. ((a))

    Insert + Alt

  2. ((b))

    F2 + Alt

  3. ((c))

    Tab + Del

  4. ((d))

    Alt + Enter

Show Answer
Answer: ((a))

Insert + Alt

97

Which of the following is NOT a good heat conductor?

  1. ((a))

    Fur

  2. ((b))

    Copper

  3. ((c))

    Iron

  4. ((d))

    Aluminum

Show Answer
Answer: ((a))

Fur

98

A, B, C, D, E, and F live on six different floors of the same building. The lowest floor of the building is numbered 1, the floor above it is numbered 2, and the top floor is numbered 6. E lives on an even-numbered floor but not on floor 4. The sum of the floor numbers where E and B live is 9. Only three people live between A and C. The sum of the floor numbers where F and C live is 3. What is the sum of the floor numbers where B and F live?

  1. ((a))

    6

  2. ((b))

    4

  3. ((c))

    7

  4. ((d))

    5

Show Answer
Answer: ((a))

6

99

Under which Section of the Factories Act, of 1948, is the employment of women and children near cotton openers prohibited?

  1. ((a))

    Section 25

  2. ((b))

    Section 21

  3. ((c))

    Section 27

  4. ((d))

    Section 29

Show Answer
Answer: ((a))

Section 25

100

Four chairs and a table set up cost 22,000. Determine the table's cost, if it is ₹2,000 more expensive than the chair.

  1. ((a))

    ₹6,000

  2. ((b))

    ₹5,000

  3. ((c))

    ₹4,000

  4. ((d))

    ₹6,500

Show Answer
Answer: ((a))

₹6,000

Part B (75 questions)

101

What is the SI unit of 'volume'? 

  1. ((a))

    Cubic centimetre

  2. ((b))

    Litres

  3. ((c))

    Cubic metre 

  4. ((d))

    Millilitres 

Show Answer
Answer: ((a))

Cubic centimetre

102

A carburetor used in a petrol engine is designed so as to fit in which of the following parts of the engine?

  1. ((a))

    Connecting rod

  2. ((b))

    Casing

  3. ((c))

    Piston 

  4. ((d))

    Cylinder head 

Show Answer
Answer: ((a))

Connecting rod

103

Which of the following is NOT the purpose of lubrication oil in an engine? 

  1. ((a))

    Mixing of impurities uniformly that include aromatics and polar compounds 

  2. ((b))

    Finishing to improve oxidation and heat stability 

  3. ((c))

    Separation of lighter boiling materials such as gasoline, jet fuel, diesel, etc. 

  4. ((d))

    Dewaxing to improve low-temperature fluidity

Show Answer
Answer: ((a))

Mixing of impurities uniformly that include aromatics and polar compounds 

104

 Which of the following statements is NOT correct for using scribers?

  1. ((a))

    Do not put the scriber in your pocket. 

  2. ((b))

    Scriber points are very sharp, so they are to be handled very carefully. 

  3. ((c))

    Place a cork on the point when in use to prevent accidents. 

  4. ((d))

    While scribing lines, the scriber is used like a pencil.

Show Answer
Answer: ((a))

Do not put the scriber in your pocket. 

105

Which of the following types of engine classifications is based on cylinder arrangement?

  1. ((a))

    Diesel cycle enigne 

  2. ((b))

    Otto cycle engine 

  3. ((c))

    V-engine

  4. ((d))

    Dual cycle engine 

Show Answer
Answer: ((a))

Diesel cycle enigne 

106

In a hydraulic brake booster system, where is the hydraulic pressure stored before it is used to assist braking?

  1. ((a))

    Power steering pump

  2. ((b))

    Master cylinder

  3. ((c))

    Accumulator

  4. ((d))

    Brake caliper 

Show Answer
Answer: ((a))

Power steering pump

107

 The process in which an oil pump housing is first filled with oil, especially for oil pumps that are driven by the crankshaft, is known as: 

  1. ((a))

    priming of a new oil pump

  2. ((b))

    cavitation of a pump

  3. ((c))

    ferrography of a pump

  4. ((d))

    alignment of a pump

Show Answer
Answer: ((a))

priming of a new oil pump

108

Which of the following devices is used to insert a micrometer in the hole of an external cylinder for zero aligning? 

  1. ((a))

    Screw driver 

  2. ((b))

    Spanner

  3. ((c))

    Wrench

  4. ((d))

    Allen key

Show Answer
Answer: ((a))

Screw driver 

109

Where is a typical clutch actuated by a number of coil spring

  1. ((a))

    On an addendum circle near the centre of the radius

  2. ((b))

    On a pitch circle near the central axis of the shaft 

  3. ((c))

     On a base circle near the centre of the circle

  4. ((d))

    On a pitch circle near the periphery 

Show Answer
Answer: ((a))

On an addendum circle near the centre of the radius

110

Which of the following statements is INCORRECT about end standard?

  1. ((a))

    Faces are subject to wear. 

  2. ((b))

    It is slower but more accurate.

  3. ((c))

    It is used to measure the distance between two engraved lines. 

  4. ((d))

    It measures the distance between two parallel flat surfaces. 

Show Answer
Answer: ((a))

Faces are subject to wear. 

111

Which of the following calipers are used for marking lines, parallel to inside and outside edges and for locating the centre of round bars?

  1. ((a))

    Spring joint calipers 

  2. ((b))

    Simple calipers

  3. ((c))

    Leg and point calipers 

  4. ((d))

    Firm joint calipers 

Show Answer
Answer: ((a))

Spring joint calipers 

112

In two-stroke engines, one power cycle is completed in how many revolutions of the crankshaft? 

  1. ((a))

    Three revolutions

  2. ((b))

     Four revolutions

  3. ((c))

    Two revolutions

  4. ((d))

    One revolution 

Show Answer
Answer: ((a))

Three revolutions

113

Which of the following changes is/are observed in the engine when the idle adjustment screw in the carburetor is adjusted?

  1. ((a))

    Decreases idle port area, reduce engine speed

  2. ((b))

    Regulate air intake

  3. ((c))

    Increase idle port area, increase engine speed

  4. ((d))

    Control fuel mixture at high speeds 

Show Answer
Answer: ((a))

Decreases idle port area, reduce engine speed

114

When passing stationary vehicles, keep a watch on ___________ who may come out suddenly from the front of the stationary vehicle. While overtaking, it should be done on the __________ side. Always keep a good _________________ between your vehicle and others.

  1. ((a))

    pedestrians; right; distance 

  2. ((b))

    vehicles; right; gap 

  3. ((c))

    drivers; left; space 

  4. ((d))

    cyclists; left; interval 

Show Answer
Answer: ((a))

pedestrians; right; distance 

115

What happens if air is NOT removed from a hydraulic brake system? 

  1. ((a))

    The engine runs smoother. 

  2. ((b))

    The tires wear out faster. 

  3. ((c))

    The fuel efficiency improves.  

  4. ((d))

    The brakes feel spongy and less effective. 

Show Answer
Answer: ((a))

The engine runs smoother. 

116

What is an effective way to reduce backlash in a gear system?

  1. ((a))

    Increase the clearance between gears

  2. ((b))

    Use worn-out gears for better engagement 

  3. ((c))

    Use proper lubrication and regular maintenance 

  4. ((d))

    Ignore minor misalignments in gear setup 

Show Answer
Answer: ((a))

Increase the clearance between gears

117

In the process of bisecting angle BAC in the given figure, why do we draw arcs from points D and E?

  1. ((a))

    To mark equal lengths 

  2. ((b))

    To intersect above A 

  3. ((c))

    To intersect line AC

  4. ((d))

     To find midpoint AB 

Show Answer
Answer: ((a))

To mark equal lengths 

118

Which of the following is NOT a typical component of a welding cable's construction?

  1. ((a))

    Woven fabric reinforcing layers 

  2. ((b))

    Rubber insulation 

  3. ((c))

    Steel core 

  4. ((d))

    Fine copper wires 

Show Answer
Answer: ((a))

Woven fabric reinforcing layers 

119

Who is authorised to conduct road tests on workshop vehicles?

  1. ((a))

    The company accountant

  2. ((b))

    Visitors to the workshop

  3. ((c))

    Only trained and certified personnel 

  4. ((d))

    Any employee 

Show Answer
Answer: ((a))

The company accountant

120

The camshaft is driven by the crankshaft through which of the following types of power transmission techniques?

  1. ((a))

    Timing gears drive 

  2. ((b))

    Chain drive 

  3. ((c))

    Epicyclic gear train drive

  4. ((d))

    Flat belt transmission drive 

Show Answer
Answer: ((a))

Timing gears drive 

121

Find the lateral surface area of a cube with side length 5 cm.

  1. ((a))

    150 cm² 

  2. ((b))

    100 cm²

  3. ((c))

    125 cm²

  4. ((d))

    200 cm²

Show Answer
Answer: ((a))

150 cm² 

122

Which of the following symptom or indicator does NOT show the failure of an oil pump?

  1. ((a))

    If a hydraulic lifter in a vehicle creates noise

  2. ((b))

    When the engine oil flow slows or stops, the components continue to be lubricated by hot oil that is not permitted to flow

  3. ((c))

    Able to push oil through the system adequately and with low pressure in oil lines

  4. ((d))

    When the engine runs at a normal temperature and oil flow is steady. 

Show Answer
Answer: ((a))

If a hydraulic lifter in a vehicle creates noise

123

What is the accuracy level of metric micrometer reading? 

  1. ((a))

    1.0 mm

  2. ((b))

    0.5 mm

  3. ((c))

    0.01 mm 

  4. ((d))

    0.1 mm 

Show Answer
Answer: ((a))

1.0 mm

124

Which of the following is NOT the correct function of the front axle? 

  1. ((a))

    It transmits the torque of a vehicle through springs to the front wheels. 

  2. ((b))

    It absorbs torque applied on it due to braking of vehicle. 

  3. ((c))

     An axle is a central shaft for a rotating wheel or gear. 

  4. ((d))

    It supports the weight of the front part of the vehicle. 

Show Answer
Answer: ((a))

It transmits the torque of a vehicle through springs to the front wheels. 

125

Which of the following information is necessary to construct a rectangle? 

  1. ((a))

    Only the length of the diagonal 

  2. ((b))

    Length of two adjacent sides

  3. ((c))

    Length of one side and the area of the rectangle 

  4. ((d))

    Only the length of one side

Show Answer
Answer: ((a))

Only the length of the diagonal 

126

What is the minimum age for employment in factories or mines or other hazardous employment, according to Article 24 of the Indian Constitution?

  1. ((a))

    16 years

  2. ((b))

    12 years 

  3. ((c))

    18 years

  4. ((d))

    14 years 

Show Answer
Answer: ((a))

16 years

127

Which of the following metals has the lowest melting point? 

  1. ((a))

    Iron

  2. ((b))

    Lead

  3. ((c))

    Gold

  4. ((d))

    Mercury

Show Answer
Answer: ((a))

Iron

128

Which of the following types of valve seats are commonly used in cast iron head of the engine?

  1. ((a))

    Integral valve seats 

  2. ((b))

    Insert valve seats

  3. ((c))

    Two piece valve seats 

  4. ((d))

    Elliptical valve seats 

Show Answer
Answer: ((a))

Integral valve seats 

129

The SI unit of temperature is/are _____

  1. ((a))

    both kelvin and celsius 

  2. ((b))

    fahrenheit

  3. ((c))

    kelvin

  4. ((d))

    celsius

Show Answer
Answer: ((a))

both kelvin and celsius 

130

The wave set of hacksaw teeth set has a pitch of ________________. 

  1. ((a))

    0.8 mm

  2. ((b))

    2.0 mm

  3. ((c))

    1.0 mm

  4. ((d))

    0.5 mm 

Show Answer
Answer: ((a))

0.8 mm

131

Which of the following is the primary reason why copper is widely used as a conductor in electrical wiring?

  1. ((a))

    Copper has a low melting point. 

  2. ((b))

    Copper has high resistance to electricity. 

  3. ((c))

    Copper has low resistance and high conductivity. 

  4. ((d))

    Copper is abundant and inexpensive. 

Show Answer
Answer: ((a))

Copper has a low melting point. 

132

In a series circuit, three resistors of 10 ohms, 20 ohms, and R ohms are connected in series with a 12 V battery. What is the value of resistance R if current flowing in the circuit is 0.2 A? 

  1. ((a))

    10 ohms 

  2. ((b))

    30 ohms

  3. ((c))

    40 ohms 

  4. ((d))

    20 ohms

Show Answer
Answer: ((a))

10 ohms 

133

Which type of line is used to represent hidden edges or surfaces in a technical drawing, as per BIS SP 46-2003?

  1. ((a))

    Continuous thick line 

  2. ((b))

    Chain thin line

  3. ((c))

    Continuous thin line

  4. ((d))

    Dashed thin line

Show Answer
Answer: ((a))

Continuous thick line 

134

What is the approximate temperature range of a neutral oxy-acetylene flame?

  1. ((a))

    3000°C-3500°C 

  2. ((b))

    2000°C-2500°C

  3. ((c))

    2500°C-2750°C 

  4. ((d))

    1500°C-2000°C

Show Answer
Answer: ((a))

3000°C-3500°C 

135

Which of the following parts is NOT associated with camshaft responsible for the opening and closing of engine valves? 

  1. ((a))

    Connecting rod

  2. ((b))

    Rocker arms

  3. ((c))

    Tappets

  4. ((d))

    Push rods 

Show Answer
Answer: ((a))

Connecting rod

136

A single plate friction clutch consists of a clutch disk between the: 

  1. ((a))

    flywheel and a pressure plate

  2. ((b))

    pressure plate and driving shaft

  3. ((c))

    differential gear and transmission gear box

  4. ((d))

    driving shaft and differential gear 

Show Answer
Answer: ((a))

flywheel and a pressure plate

137

Which of the following parts of the engine is used to compress the charge during compression stroke and to transmit the gas force to the connecting rod and then to the crankshaft during power stroke? 

  1. ((a))

    Piston

  2. ((b))

    Cylinder head

  3. ((c))

    Cylinder block 

  4. ((d))

    Crankcase

Show Answer
Answer: ((a))

Piston

138

A 100-mm prick punch with a 7-mm diameter body could have a 2.5-mm diameter point ground to an angle of __________. 

  1. ((a))

    30°

  2. ((b))

    45°

  3. ((c))

    90°

  4. ((d))

    120° 

Show Answer
Answer: ((a))

30°

139

What is the best method of manufacturing of connecting rod used in an engine? 

  1. ((a))

    Machining operation

  2. ((b))

    Sand casting 

  3. ((c))

     Investment casting

  4. ((d))

    Drop forging 

Show Answer
Answer: ((a))

Machining operation

140

Which of the following statements about title block is/are true?

Statement 1: The title block is situated in the bottom right-hand corner of the drawing sheet.

Statement 2: The contents of the title block are standardised and cannot be modified to suit individual company needs.

  1. ((a))

    Both statements are true

  2. ((b))

    Both statements are false

  3. ((c))

    Statement 1 is true, but statement 2 is false

  4. ((d))

    Statement 1 is false, but statement 2 is true 

Show Answer
Answer: ((a))

Both statements are true

141

A crucial engine component that ensures proper sealing of the intake and exhaust valves is known as: 

  1. ((a))

    valve barrier

  2. ((b))

    valve ring

  3. ((c))

    valve gasket

  4. ((d))

    valve seat 

Show Answer
Answer: ((a))

valve barrier

142

A type of piston which provides an even distribution of the air-fuel mixture, consistent flame front during combustion and it has the smallest surface area on top is known as:

  1. ((a))

    semi-spherical piston

  2. ((b))

    dome piston 

  3. ((c))

    flat piston 

  4. ((d))

    dish piston

Show Answer
Answer: ((a))

semi-spherical piston

143

For the given tire size, as per specification as 205/55R16, what is the width of the tire?

  1. ((a))

    205 mm

  2. ((b))

    880 mm

  3. ((c))

    20555\frac{205}{55} mm

  4. ((d))

    550 mm

Show Answer
Answer: ((a))

205 mm

144

If the calliper bore diameter worn is greater than 2.630 inches (66.80 mm), what corrective action is recommended?

  1. ((a))

    Replacing the calliper housing 

  2. ((b))

    Replacing the piston

  3. ((c))

    Tightening the inlet fitting 

  4. ((d))

    Adjusting the brake pads

Show Answer
Answer: ((a))

Replacing the calliper housing 

145

Which of the following statements is correct about the clutch used in vehicles?

  1. ((a))

    It allows the driver to lift and unload the bulk material from engine and transmission.

  2. ((b))

    It allows the driver to change the speed of engine. 

  3. ((c))

    It allows the driver to couple or decouple the power transmission at will without stopping the engine.

  4. ((d))

    It allows the driver to change the drive of engine in any direction.

Show Answer
Answer: ((a))

It allows the driver to lift and unload the bulk material from engine and transmission.

146

Which of the following types of chisels is used for separating metals after chain drilling?

  1. ((a))

    Cross-cut chisel 

  2. ((b))

    Diamond point chisel 

  3. ((c))

    Web chisel 

  4. ((d))

    Flat chisel

Show Answer
Answer: ((a))

Cross-cut chisel 

147

What is the primary function of a spark plug in an spark ignition engine? 

  1. ((a))

    To provide lubrication to engine parts 

  2. ((b))

    To cool the engine  

  3. ((c))

    To ignite the compressed air-fuel mixture

  4. ((d))

    To regulate engine timing

Show Answer
Answer: ((a))

To provide lubrication to engine parts 

148

Which of the following colours is commonly used for caution signs?

  1. ((a))

    Yellow

  2. ((b))

    Red

  3. ((c))

    Blue

  4. ((d))

    Green

Show Answer
Answer: ((a))

Yellow

149

Acetylene hose-pipes are typically identified by their _____ colour.

  1. ((a))

    maroon

  2. ((b))

    black

  3. ((c))

    green

  4. ((d))

    blue

Show Answer
Answer: ((a))

maroon

150

Which of the following is NOT a part of the gear changing mechanism in an automatic transmission system?

  1. ((a))

    Torque converter

  2. ((b))

     Epicyclic gear arrangement 

  3. ((c))

    Fluid coupling  

  4. ((d))

    Universal coupling

Show Answer
Answer: ((a))

Torque converter

151

Which property is NOT essential for a friction material? 

  1. ((a))

    Low thermal conductivity

  2. ((b))

    Resistance to wear 

  3. ((c))

    High noise generation

  4. ((d))

    Durability

Show Answer
Answer: ((a))

Low thermal conductivity

152

In a logic circuit, two inputs A and B are applied to an AND gate, and the output of the AND gate is connected to the input of a NOT gate. If the inputs A and B are both at logic 0, what will be the output of the entire circuit?

  1. ((a))

    2

  2. ((b))

    1

  3. ((c))

    0

  4. ((d))

    Undefined

Show Answer
Answer: ((a))

2

153

What type of rays are a significant hazard during arc welding?

  1. ((a))

    Ultraviolet and infrared rays

  2. ((b))

    X-rays and gamma rays  

  3. ((c))

    Microwaves and radio waves

  4. ((d))

    Sound waves and visible light 

Show Answer
Answer: ((a))

Ultraviolet and infrared rays

154

If the vehicle does NOT move due to the brake system, what should be checked first?

  1. ((a))

    Parking brake applied

  2. ((b))

    Loose inlet fitting 

  3. ((c))

    Piston diameter 

  4. ((d))

    Brake adjuster

Show Answer
Answer: ((a))

Parking brake applied

155

How much clearance is to be provided for compression ring fitted into the piston of an IC engine? 

  1. ((a))

    Approximately 0.095 – 1.80 mm for compression rings

  2. ((b))

     Approximately 0.9 – 1.80 mm for compression rings 

  3. ((c))

    0.002 D to 0.004 D where D is the cylinder bore

  4. ((d))

    Approximately 0.035 – 0.080 mm for compression rings 

Show Answer
Answer: ((a))

Approximately 0.095 – 1.80 mm for compression rings

156

Which of the following types of engine classifications is based on the thermodynamic cycle? 

  1. ((a))

    Otto cycle engine 

  2. ((b))

    Radial engine 

  3. ((c))

    V-engine  

  4. ((d))

    In-line cylinder engine 

Show Answer
Answer: ((a))

Otto cycle engine 

157

Which of the following types of additives are blended with the lubricant to reduce the surface tension of the oil? 

  1. ((a))

    Demulsifiers

  2. ((b))

    Tackiness agents 

  3. ((c))

    Mist suppressors

  4. ((d))

    Emulsifiers

Show Answer
Answer: ((a))

Demulsifiers

158

Which of the following provisions is provided in the cylinder head during design for increasing the air cooling effect?

  1. ((a))

    Dimple like shapes on surfaces are provided on the cylinder walls. 

  2. ((b))

    Cylinder head is provided with water jackets.

  3. ((c))

    Cylinder block is provided with high speed cooling air flow.

  4. ((d))

    Fins or extended surfaces are provided on the cylinder walls and cylinder blocks. 

Show Answer
Answer: ((a))

Dimple like shapes on surfaces are provided on the cylinder walls. 

159

A voltmeter with a resistance of 10,000 ohms is connected across a circuit that has a voltage of 50 V. What is the current flowing through the voltmeter?

  1. ((a))

    5 mA

  2. ((b))

    4 mA

  3. ((c))

    1 mA

  4. ((d))

    2 mA

Show Answer
Answer: ((a))

5 mA

160

After removing the carbon deposit on the cylinder head, which of the following is used to clean the cylinder head? 

  1. ((a))

    Diesel

  2. ((b))

    Kerosene

  3. ((c))

    Cleaning solvent 

  4. ((d))

    Lub oil 

Show Answer
Answer: ((a))

Diesel

161

What does toe-in mean in the wheel alignment of a vehicle?

  1. ((a))

    Wheels inclined inward at front

  2. ((b))

    Wheels rotated 90 degrees

  3. ((c))

    Wheels inclined outward at front 

  4. ((d))

    Wheels paralle

Show Answer
Answer: ((a))

Wheels inclined inward at front

162

When creating 10 mm single-stroke capital letters in vertical style, what does the 10 mm distance between horizontal parallel lines represent?

  1. ((a))

    Letter width

  2. ((b))

    Interline spacing 

  3. ((c))

    Stroke thickness

  4. ((d))

    Letter height 

Show Answer
Answer: ((a))

Letter width

163

What is the typical temperature range of a mercury-based clinical thermometer? 

  1. ((a))

     0°C to 100°C 

  2. ((b))

    0°C to 50°C

  3. ((c))

    35°C to 42°C 

  4. ((d))

    −10°C to 110°C 

Show Answer
Answer: ((a))

 0°C to 100°C 

164

When flushing a radiator, what is the purpose of submerging the radiator in a water tank after flushing?

  1. ((a))

    To cool the radiator

  2. ((b))

    To check for leaks using air pressure

  3. ((c))

    To refill the radiator with coolant 

  4. ((d))

    To clean the exterior of the radiator 

Show Answer
Answer: ((a))

To cool the radiator

165

For the given tire size, as per specification as 205/55R16, what is the width of the tire?

  1. ((a))

     205 mm

  2. ((b))

    205/55 mm

  3. ((c))

    550 mm 

  4. ((d))

    880 mm

Show Answer
Answer: ((a))

 205 mm

166

Convert 8.5% into a decimal. 

  1. ((a))

    0.085

  2. ((b))

    0.85

  3. ((c))

    85

  4. ((d))

    8.5

Show Answer
Answer: ((a))

0.085

167

The emergency brake locks the wheels by bypassing which system?

  1. ((a))

    Air pressure system 

  2. ((b))

    Fuel injection system

  3. ((c))

    Electric brake systemV

  4. ((d))

    Hydraulic brake system

Show Answer
Answer: ((a))

Air pressure system 

168

Match the following types of lines with their correct descriptions according to their orientation and characteristics. 

DescriptionType of Line
A. A line that is neither parallel to a horizontal plane nor perpendicular to it.1. Horizontal Line
B. A line that is perpendicular to horizontal lines.2. Vertical Line
C. A line that changes its direction continuously.3. Inclined Line
D. A line that is parallel to a horizontal plane.4. Curved Line
  1. ((a))

    A - 2, B - 3, C - 4, D - 1 

  2. ((b))

    A - 3, B - 2, C - 4, D - 1

  3. ((c))

    A - 2, B - 1, C - 4, D - 3

  4. ((d))

    A - 1, B - 2, C - 3, D - 4

Show Answer
Answer: ((a))

A - 2, B - 3, C - 4, D - 1 

169

For your safety at work, which of the following should be ensured? 1. All the required protective clothing and equipment are used. 2. Training and instruction necessary for performing tasks safely have been received. 

  1. ((a))

    Only statement 1

  2. ((b))

    Only statement 2 

  3. ((c))

    Both statements 1 and 2

  4. ((d))

    Neither statement 1 nor 2

Show Answer
Answer: ((a))

Only statement 1

170

Which of the following ‘V’ blocks will have one ‘V’ groove and two grooves (slots) on either side for clamping in two positions?

  1. ((a))

    Single level double groove ‘V’ block

  2. ((b))

    Double level single groove ‘V’ block 

  3. ((c))

    Single level single groove ‘V’ block

  4. ((d))

    Matched pair ‘V’ block 

Show Answer
Answer: ((a))

Single level double groove ‘V’ block

171

Which of the following terms in the 5S concept refers to making a habit of maintaining the established procedures?

  1. ((a))

    Set

  2. ((b))

    Sustain

  3. ((c))

    Sort

  4. ((d))

    Shine

Show Answer
Answer: ((a))

Set

172

If the length of a resistor is doubled, what happens to its resistance, assuming all other factors remain constant? 

  1. ((a))

    The resistance quadruples.  

  2. ((b))

    The resistance remains the same. 

  3. ((c))

    The resistance is halved. 

  4. ((d))

     The resistance is doubled.

Show Answer
Answer: ((a))

The resistance quadruples.  

173

What is a consequence of using a lower heat input in oxy-acetylene welding?

  1. ((a))

    Reduced filler metal requirement 

  2. ((b))

    Increased weld penetration 

  3. ((c))

    Slower welding speed

  4. ((d))

    Increased welding speed

Show Answer
Answer: ((a))

Reduced filler metal requirement 

174

What is the state of the metal at the junction when heat is applied during resistance welding?

  1. ((a))

    Liquid

  2. ((b))

    Plastic

  3. ((c))

    Solid

  4. ((d))

    Gaseous

Show Answer
Answer: ((a))

Liquid

175

What is the reason that cam lobe causes the engine to make a ticking or tapping noise, especially when idling, and is often rhythmic and varies in loudness? 

  1. ((a))

    When the cam lobe is subjected to higher load. 

  2. ((b))

    When the cam lobe is hot.  

  3. ((c))

    When the cam lobe wears out.  

  4. ((d))

    When cam lobe is has insufficient lubrication. 

Show Answer
Answer: ((a))

When the cam lobe is subjected to higher load. 

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