Official Paper

RRB ALP CBT-II (Mechanic Diesel) 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

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

  1. ((a))

     V-engine 

  2. ((b))

    In-line cylinder engine

  3. ((c))

    Radial engine 

  4. ((d))

    Otto cycle engine

Show Answer
Answer: ((a))

 V-engine 

102

A voltmeter with a resistance of 10,000 ohms is connected to a circuit with a voltage of 50 V. Find the current flowing through the voltmeter.

  1. ((a))

    5 mA

  2. ((b))

    2 mA

  3. ((c))

    1 mA

  4. ((d))

    4 mA

Show Answer
Answer: ((a))

5 mA

103

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

  1. ((a))

    Yellow

  2. ((b))

    Red

  3. ((c))

    Green

  4. ((d))

    Blue

Show Answer
Answer: ((a))

Yellow

104

What happens if air is not removed from the hydraulic brake system?

  1. ((a))

    The engine runs more smoothly.

  2. ((b))

    Tires wear out faster.

  3. ((c))

    Fuel efficiency improves.

  4. ((d))

    The brakes feel spongy and less effective.

Show Answer
Answer: ((a))

The engine runs more smoothly.

105

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

  1. ((a))

    Cylinder head 

  2. ((b))

    Piston

  3. ((c))

    Casing

  4. ((d))

    Connecting rod

Show Answer
Answer: ((a))

Cylinder head 

106

When fuel evaporates and spreads into the atmosphere, what is this emission called?

  1. ((a))

    Combustion emissions

  2. ((b))

    Crankcase emissions

  3. ((c))

    Exhaust emissions

  4. ((d))

    Evaporative emissions

Show Answer
Answer: ((a))

Combustion emissions

107

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

Description

A. A line that is neither parallel nor perpendicular to the horizontal plane.

B. A line that is perpendicular to the horizontal lines.

C. A line that constantly changes its direction.

D. A line that is parallel to the horizontal plane.

1. Horizontal line
2. Vertical line
3. Oblique line (Inclined line)
4. Curved line

  1. ((a))

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

  2. ((b))

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

  3. ((c))

    A - 3, B - 2, C - 4, D - 1 

  4. ((d))

    A - 1, B - 2, C - 3, D - 4 

Show Answer
Answer: ((a))

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

108

What is the function of the compression spring in a 2/2-way directional control hydraulic valve? 

  1. ((a))

     To increase the pressure at working port 

  2. ((b))

    To move the spool to the actuated position

  3. ((c))

    To assist fluid flow 

  4. ((d))

    To return spool to the normal position

Show Answer
Answer: ((a))

 To increase the pressure at working port 

109

When drawing a 10 mm single-stroke capital letter in vertical style, what does a distance of 10 mm between horizontal parallel lines represent?

  1. ((a))

    letter width

  2. ((b))

    Stroke thickness

  3. ((c))

    Interline spacing

  4. ((d))

    letter height

Show Answer
Answer: ((a))

letter width

110

The wave set of a hexon tooth set has a gap of ______. 

  1. ((a))

    1.0 mm

  2. ((b))

    0.8 mm

  3. ((c))

    2.0 mm

  4. ((d))

    0.5 mm

Show Answer
Answer: ((a))

1.0 mm

111

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

  1. ((a))

    0°C to 50°C

  2. ((b))

    35°C to 42°C

  3. ((c))

    0°C to 100°C

  4. ((d))

    -10°C to 110°C

Show Answer
Answer: ((a))

0°C to 50°C

112

Which of the following is not the purpose of lubricating oil in an engine?

  1. ((a))

    Dewaxing to improve low temperature fluidity.

  2. ((b))

    Separation of low boiling substances like gasoline, jet fuel, diesel etc.

  3. ((c))

    Finishing to improve oxidation and heat stability.

  4. ((d))

    To evenly mix impurities including aromatic and polar compounds.

Show Answer
Answer: ((a))

Dewaxing to improve low temperature fluidity.

113

Which of the following statements is correct regarding clutches used in vehicles?

  1. ((a))

    This allows the driver to lift and unload bulk materials from the engine and transmission.

  2. ((b))

    This allows the driver to change the engine's speed in any direction.

  3. ((c))

    This allows the driver to change the engine speed.

  4. ((d))

    This allows the driver to couple or decouple the power transmission as desired without stopping the engine.

Show Answer
Answer: ((a))

This allows the driver to lift and unload bulk materials from the engine and transmission.

114

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

  1. ((a))

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

  2. ((b))

    If a hydraulic lifter in a vehicle creates noise

  3. ((c))

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

  4. ((d))

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

Show Answer
Answer: ((a))

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

115

When passing parked vehicles, watch out for ___________ that may suddenly pull out in front of the parked vehicle. When overtaking, always do so from the ___________ side. Always maintain adequate ________________ between your vehicle and others.

  1. ((a))

    Cyclist; Left; Distance

  2. ((b))

    Pedestrians: Right: Distance

  3. ((c))

    Vehicle; Right; Difference

  4. ((d))

    Drivers; Left: Distance

Show Answer
Answer: ((a))

Cyclist; Left; Distance

116

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

  1. ((a))

    Set

  2. ((b))

    Sort

  3. ((c))

    Shine

  4. ((d))

     Sustain

Show Answer
Answer: ((a))

Set

117

Which type of air purifier uses oil to absorb heavy dust particles?

  1. ((a))

    Cyclonic-type

  2. ((b))

    Wet-type

  3. ((c))

    Electronic-type

  4. ((d))

    Dry-type

Show Answer
Answer: ((a))

Cyclonic-type

118

The SI unit of temperature is/are _____.

  1. ((a))

    Fahrenheit

  2. ((b))

    Celsius

  3. ((c))

    Kelvin

  4. ((d))

    Both Kelvin and Celsius

Show Answer
Answer: ((a))

Fahrenheit

119

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

  1. ((a))

    Flat belt transmission drive

  2. ((b))

    Epicyclic gear train drive

  3. ((c))

    Chain drive

  4. ((d))

    Timing gear drive

Show Answer
Answer: ((a))

Flat belt transmission drive

120

Which of the following statements regarding end standard is incorrect?

  1. ((a))

    The blades 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 plane surfaces.

Show Answer
Answer: ((a))

The blades are subject to wear.

121

Which of the following calipers is used for marking parallel lines on the inner and outer edges and for locating the centre of a round bar?

  1. ((a))

    Leg and point caliper

  2. ((b))

    Simple caliper

  3. ((c))

    Spring joint caliper

  4. ((d))

    Firm joint caliper

Show Answer
Answer: ((a))

Leg and point caliper

122

In gasoline direct injection, which type of control adjusts the air-fuel ratio in real time based on oxygen sensor data?

  1. ((a))

    Open-loop control

  2. ((b))

    Closed-loop control

  3. ((c))

    Feed forward control

  4. ((d))

    Indirect control

Show Answer
Answer: ((a))

Open-loop control

123

Which component in a multi-cylinder diesel engine directly drives the plunger-type fuel feed pump? 

  1. ((a))

    Crankshaft

  2. ((b))

    F.I. pump camshaft

  3. ((c))

    Starter Motor

  4. ((d))

    Alternator

Show Answer
Answer: ((a))

Crankshaft

124

For separating metals after chain drilling, which of the following types of chisels is used?

  1. ((a))

    Diamond pointed chisel

  2. ((b))

    Web Chisel

  3. ((c))

    Flat chisel

  4. ((d))

    Cross-cut chisel

Show Answer
Answer: ((a))

Diamond pointed chisel

125

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 both inputs A and B are at logic 0, what will be the output of the entire circuit?

  1. ((a))

    Undefined

  2. ((b))

    0

  3. ((c))

    2

  4. ((d))

    1

Show Answer
Answer: ((a))

Undefined

126

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 find the mid-point AB

  4. ((d))

    to intersect the line AC

Show Answer
Answer: ((a))

to mark equal lengths

127

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))

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

  3. ((c))

    Cylinder block is provided with high speed cooling air flow. 

  4. ((d))

    Cylinder head is provided with water jackets.

Show Answer
Answer: ((a))

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

128

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

  1. ((a))

    Diesel cycle engine

  2. ((b))

    V-engine

  3. ((c))

    Dual cycle engine

  4. ((d))

    Otto cycle engine

Show Answer
Answer: ((a))

Diesel cycle engine

129

Which of the following instruments is used to insert a micrometer into the hole of the outer cylinder for zero alignment?

  1. ((a))

    Wrench

  2. ((b))

    Allen key

  3. ((c))

    Spanner

  4. ((d))

    Screw driver

Show Answer
Answer: ((a))

Wrench

130

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

  1. ((a))

    Length of only one side

  2. ((b))

    Length of a side and area of ​​a rectangle

  3. ((c))

    Length of two adjacent sides

  4. ((d))

    Only the length of the diagonal

Show Answer
Answer: ((a))

Length of only one side

131

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

  1. ((a))

    Accumulator

  2. ((b))

    Master cylinder

  3. ((c))

    Brake caliper

  4. ((d))

    Power steering pump

Show Answer
Answer: ((a))

Accumulator

132

Which of the following 'V' blocks will have a 'V' notch and two slots on either side for clamping in two positions?

  1. ((a))

    Single level single groove 'V' block

  2. ((b))

    Single level double groove 'V' block

  3. ((c))

    Matched pair 'V' block

  4. ((d))

    Double level single groove 'V' block

Show Answer
Answer: ((a))

Single level single groove 'V' block

133

The turbocharger compressor housing inlet is connected to which of the following?

  1. ((a))

    Air cleaner

  2. ((b))

    Engine block

  3. ((c))

    Fuel injector

  4. ((d))

    Exhaust manifold

Show Answer
Answer: ((a))

Air cleaner

134

Convert 8.5% to a decimal.

  1. ((a))

    85

  2. ((b))

    8.5

  3. ((c))

    0.085

  4. ((d))

    0.85

Show Answer
Answer: ((a))

85

135

Which of the following statements regarding the use of scribers is not correct?

  1. ((a))

    Do not carry the scriber in your pocket.

  2. ((b))

    Scriber tips are very sharp, so they must be handled with care.

  3. ((c))

    When drawing (scribing) lines, the scriber is used like a pencil.

  4. ((d))

    Cork the tip while using to prevent accidents.

Show Answer
Answer: ((a))

Do not carry the scriber in your pocket.

136

Where is the air cleaner fitted in the engine?

  1. ((a))

    Next to the fuel injector

  2. ((b))

    At the top of the air intake manifold

  3. ((c))

    Inside the cylinder bore

  4. ((d))

    Under the engine block

Show Answer
Answer: ((a))

Next to the fuel injector

137

 What is the purpose of the heat control valve in the exhaust manifold?

  1. ((a))

    To direct hot gases around the inlet manifold 

  2. ((b))

    To reduce exhaust noise

  3. ((c))

    To increase fuel consumption 

  4. ((d))

    To cool the exhaust gases

Show Answer
Answer: ((a))

To direct hot gases around the inlet manifold 

138

Which of the following is considered an important factor in determining the quality of diesel fuel?

  1. ((a))

    Brand Name

  2. ((b))

    Colour

  3. ((c))

    Packaging size

  4. ((d))

    Cetane number

Show Answer
Answer: ((a))

Brand Name

139

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

  1. ((a))

    Four revolutions

  2. ((b))

    Three revolutions

  3. ((c))

    Two revolutions

  4. ((d))

    A revolution

Show Answer
Answer: ((a))

Four revolutions

140

Which of the following is a cause of high oil pressure in the lubrication system of an engine?

  1. ((a))

    Low oil level

  2. ((b))

    External oil leakage

  3. ((c))

    Oil pump gear wear

  4. ((d))

    High oil viscosity

Show Answer
Answer: ((a))

Low oil level

141

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

  1. ((a))

    125 cm² 

  2. ((b))

    200 cm²

  3. ((c))

    100 cm²

  4. ((d))

    150 cm²

Show Answer
Answer: ((a))

125 cm² 

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))

    flat piston 

  2. ((b))

    dome piston 

  3. ((c))

    dish piston 

  4. ((d))

    semi-spherical piston 

Show Answer
Answer: ((a))

flat piston 

143

What is the SI unit of 'volume'?

  1. ((a))

    Liters

  2. ((b))

    Cubic centimeter

  3. ((c))

    Cubic meter

  4. ((d))

    Milliliter

Show Answer
Answer: ((a))

Liters

144

Single plate friction clutch has clutch disc between ______.

  1. ((a))

    Driving shaft and differential gear

  2. ((b))

    Differential gears and transmission gear boxes

  3. ((c))

    Pressure plate and driving shaft

  4. ((d))

    Flywheel and Pressure Plate

Show Answer
Answer: ((a))

Driving shaft and differential gear

145

A vital engine component that ensures proper sealing of intake and exhaust valves is known as ______.

  1. ((a))

    valve gasket

  2. ((b))

    valve barrier

  3. ((c))

    valve ring

  4. ((d))

    valve seat

Show Answer
Answer: ((a))

valve gasket

146

Due to burning of _____ inside the combustion chamber, particles are left behind in CI engine.

  1. ((a))

    Lubricating oil

  2. ((b))

    Hydraulic oil

  3. ((c))

    Petrol

  4. ((d))

    Coolant

Show Answer
Answer: ((a))

Lubricating oil

147

Which of the following cooling media is used in heat transfer in engine cooling system?

  1. ((a))

    Oil

  2. ((b))

    Lubricant

  3. ((c))

    Fuel

  4. ((d))

    Water

Show Answer
Answer: ((a))

Oil

148

For a given tire size, according to the 205/55R16 specification, what is the tire width?

  1. ((a))

    880 mm

  2. ((b))

    205/55 mm

  3. ((c))

    550 mm

  4. ((d))

    205 mm

Show Answer
Answer: ((a))

880 mm

149

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

  1. ((a))

    18 years

  2. ((b))

    16 years

  3. ((c))

    12 years

  4. ((d))

    14 years

Show Answer
Answer: ((a))

18 years

150

Which of the following statement(s) is/are true regarding the title block?

Statement 1: The title block is located in the lower right corner of the drawing sheet.

Statement 2: The content of the title block is standardized and cannot be modified to suit individual company requirements.

  1. ((a))

    Statement 1 is true, but statement 2 is false

  2. ((b))

    Both statements are true

  3. ((c))

    Both statements are false

  4. ((d))

    Statement 1 is false, but statement 2 is true

Show Answer
Answer: ((a))

Statement 1 is true, but statement 2 is false

151

For oil pumps, especially those driven by a crankshaft, the process by which the oil pump housing is first filled with oil is called _______.

  1. ((a))

    Ferrography of the pump

  2. ((b))

    Alignment of the pump

  3. ((c))

    Priming the New Oil Pump

  4. ((d))

    Pump Caution

Show Answer
Answer: ((a))

Ferrography of the pump

152

According to the 205/55R16 specification, what is the tire width for the given tire size?

  1. ((a))

    20555mm\frac{205}{55} mm

  2. ((b))

    550 mm 

  3. ((c))

    205 mm 

  4. ((d))

    880 mm 

Show Answer
Answer: ((a))

20555mm\frac{205}{55} mm

153

The emergency brake bypasses which system and locks the wheels?

  1. ((a))

    Electric brake system

  2. ((b))

    Fuel injection system

  3. ((c))

    Hydraulic brake system

  4. ((d))

    Air pressure system

Show Answer
Answer: ((a))

Electric brake system

154

What is the function of the lubricator in the FRL or Air Service Unit?

  1. ((a))

    Pressure regulation

  2. ((b))

    Combine oil spray

  3. ((c))

    Moisture removal

  4. ((d))

    Filtering particles

Show Answer
Answer: ((a))

Pressure regulation

155

Who is authorized to conduct road tests on workshop vehicles?

  1. ((a))

    Company accountant

  2. ((b))

    Visitors to the workshop

  3. ((c))

    Only trained and certified personnel

  4. ((d))

    Any employee

Show Answer
Answer: ((a))

Company accountant

156

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

  1. ((a))

    Elliptical valve seats

  2. ((b))

    Insert valve seats

  3. ((c))

    Integral valve seats

  4. ((d))

    Two piece valve seats

Show Answer
Answer: ((a))

Elliptical valve seats

157

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

  1. ((a))

    20 ohms

  2. ((b))

    10 ohms

  3. ((c))

    30 ohms

  4. ((d))

    40 ohms

Show Answer
Answer: ((a))

20 ohms

158

Which of the following types of additives is mixed with lubricants to reduce the surface tension of the oil?

  1. ((a))

    Mist suppressors

  2. ((b))

    Tackiness agents

  3. ((c))

    Demulsifiers

  4. ((d))

    Emulsifier

Show Answer
Answer: ((a))

Mist suppressors

159

How much clearance is required for the compression ring fitted in the piston of an IC engine?

  1. ((a))

    0.002 D to 0.004 D, where D is the cylinder bore

  2. ((b))

    Approximately 0.9-1.80 mm for compression rings

  3. ((c))

    Approximately 0.095-1.80 mm for compression rings

  4. ((d))

    Approximately 0.035-0.080 mm for compression rings

Show Answer
Answer: ((a))

0.002 D to 0.004 D, where D is the cylinder bore

160

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

  1. ((a))

    Torque converter

  2. ((b))

    Universal coupling

  3. ((c))

    Fluid coupling

  4. ((d))

    Epicyclic gear arrangement

Show Answer
Answer: ((a))

Torque converter

161

A 100-mm prick punch with a 7-mm diameter body may have a 2.5-mm diameter point at an angle of _____ to the ground.

  1. ((a))

    120°

  2. ((b))

    90°

  3. ((c))

    45°

  4. ((d))

    30°

Show Answer
Answer: ((a))

120°

162

Which of the following metals has the lowest melting point? 

  1. ((a))

    Gold

  2. ((b))

    Mercury  

  3. ((c))

    Iron

  4. ((d))

    Lead

Show Answer
Answer: ((a))

Gold

163

Which of the following parts is not related to the camshaft, which is responsible for opening and closing the engine valves?

  1. ((a))

    Connecting rod

  2. ((b))

    Rocker arms

  3. ((c))

    Push rods

  4. ((d))

    Tappets

Show Answer
Answer: ((a))

Connecting rod

164

What would happen if the coolant removed too much heat from the engine?

  1. ((a))

    The engine will overheat

  2. ((b))

    The cooling system will corrode

  3. ((c))

    Thermal efficiency will decrease

  4. ((d))

    Fuel consumption will increase

Show Answer
Answer: ((a))

The engine will overheat

165

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

  1. ((a))

    Chain thin line

  2. ((b))

    Continuous thin line

  3. ((c))

    Dashed thin line

  4. ((d))

    Continuous thick line

Show Answer
Answer: ((a))

Chain thin line

166

Which harmful emissions are converted by a catalytic converter?

  1. ((a))

    CH4, C2H6 and C3H8

  2. ((b))

    CO2, H2O and N2

  3. ((c))

    O2, Ar and He

  4. ((d))

     HC, CO and NOx

Show Answer
Answer: ((a))

CH4, C2H6 and C3H8

167

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

  1. ((a))

    Cylinder head

  2. ((b))

    Cylinder block

  3. ((c))

    Piston

  4. ((d))

    Frankcase

Show Answer
Answer: ((a))

Cylinder head

168

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

  1. ((a))

    It transmits the vehicle's torque to the front wheels through springs.

  2. ((b))

    It absorbs the torque applied on the vehicle due to braking.

  3. ((c))

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

  4. ((d))

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

Show Answer
Answer: ((a))

It transmits the vehicle's torque to the front wheels through springs.

169

What is the accuracy level of metric micrometer reading?

  1. ((a))

    0.5 mm 

  2. ((b))

    0.01 mm

  3. ((c))

    1.0 mm

  4. ((d))

    0.1 mm

Show Answer
Answer: ((a))

0.5 mm 

170

To ensure your safety at the workplace, which of the following should be ensured?

  1. All necessary protective clothing and equipment are used.
  2. The necessary training and instructions for performing tasks safely have been received.
  1. ((a))

    Statement 1 only

  2. ((b))

    Only statement 2

  3. ((c))

    Neither statement 1 nor 2

  4. ((d))

    Both statements 1 and 2

Show Answer
Answer: ((a))

Statement 1 only

171

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

  1. ((a))

    Copper has high resistance to electricity.

  2. ((b))

    Copper has a low melting point.

  3. ((c))

    Copper has low resistance and high conductivity.

  4. ((d))

    Copper is available in abundance and is also cheap.

Show Answer
Answer: ((a))

Copper has high resistance to electricity.

172

If the length of a resistor is doubled, what will be the effect on its resistance, assuming all other factors remain constant?

  1. ((a))

    The resistance will quadruple.

  2. ((b))

    The resistance will be halved.

  3. ((c))

    The resistance will remain constant.

  4. ((d))

    The resistance will double.

Show Answer
Answer: ((a))

The resistance will quadruple.

173

What causes the cam lobes to make a ticking or tapping noise in the engine, especially at idle, and is often rhythmic and varies in intensity?

  1. ((a))

    When the cam lobe is subjected to heavy load.

  2. ((b))

    When there is insufficient lubrication in the cam lobe.

  3. ((c))

    When the cam lobe is hot.

  4. ((d))

    When the cam lobe wears out.

Show Answer
Answer: ((a))

When the cam lobe is subjected to heavy load.

174

What is the best method for manufacturing connecting rods used in engines?

  1. ((a))

    Machining operation

  2. ((b))

    Drop forging

  3. ((c))

    Sand casting

  4. ((d))

    Investment casting

Show Answer
Answer: ((a))

Machining operation

175

Where is a typical clutch operated by several coiled springs?

  1. ((a))

    On the pitch circle near the periphery

  2. ((b))

    On the addendum circle near the center of the radius

  3. ((c))

    On the interval circle near the central axis of the shaft

  4. ((d))

    On the base circle near the center of the circle

Show Answer
Answer: ((a))

On the pitch circle near the periphery

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