Official Paper

RRB ALP CBT-II (Mechanic Diesel) Official Paper (Held On: 02 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 wire of a certain material having length L and cross-sectional area A has a resistance of 2 Ω. What will be the resistance of another wire of the same material having length 2L and cross-sectional area A/2?

  1. ((a))

    2 Ω\Omega

  2. ((b))

    1Ω1\Omega

  3. ((c))

    8Ω8\Omega

  4. ((d))

    4Ω4\Omega

Show Answer
Answer: ((a))

2 Ω\Omega

2

In this question, statement I and statement II are given. These statements may be independent causes, effects of independent causes, or a common cause. One of these statements may be an effect of the other. Read both statements carefully and choose the correct answer.

I. The water level of the local river has reached its lowest level so far this summer, disrupting water supply to nearby towns.

II. Several power plants in the region have reported reduced power generation due to insufficient water for cooling processes.

  1. ((a))

    Both I and II are independent causes.

  2. ((b))

    II is the cause and I is its possible effect.

  3. ((c))

    Both I and II are effects of independent causes.

  4. ((d))

    I is the cause and II is its possible effect.

Show Answer
Answer: ((a))

Both I and II are independent causes.

3

Identify the correct pair of Personal Protective Equipment (PPE) categories based on the nature of the hazard. 

  1. ((a))

    Non-respiratory: Safety goggles, Respiratory: Safety gloves

  2. ((b))

    Non-respiratory: Nose mask, Respiratory: Safety boots

  3. ((c))

    Non-respiratory: Safety helmet, Respiratory: Nose mask

  4. ((d))

    Non-respiratory: Ear plugs, Respiratory: Safety shoes

Show Answer
Answer: ((a))

Non-respiratory: Safety goggles, Respiratory: Safety gloves

4

Kaushik starts from point A and walks 32 m towards East. He turns right, walks 16 m and then turns right again, walks 14 m, reaches point B and stops. Chitra starts walking from point 2 which is 60 m east of point A. She walks 18 m north, turns right, walks 19 m, turns right and walks 65 m, turns right and walks 61 m and stops at point Y. What is the shortest distance between point B and point Y? (All turns are 90 degree turns only.)

  1. ((a))

    33 m

  2. ((b))

    29 m

  3. ((c))

    31 m

  4. ((d))

    25 m

Show Answer
Answer: ((a))

33 m

5

Which of the following features is not available in Google Docs?

  1. ((a))

    Comment on text

  2. ((b))

    Insert images

  3. ((c))

    Create tables

  4. ((d))

    Track changes

Show Answer
Answer: ((a))

Comment on text

6

Which of the following is an example of preventive maintenance? 

  1. ((a))

     Ignoring minor faults to save costs 

  2. ((b))

    Using equipment until failure occurs

  3. ((c))

    Waiting for a machine to break down before repairing it

  4. ((d))

    Conducting regular lubrication and inspections

Show Answer
Answer: ((a))

 Ignoring minor faults to save costs 

7

Three of the following four letter-cluster pairs are alike in a certain way based on the English alphabetical order and thus form a group. Which of the following letter-cluster pairs does not belong to that group?

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

  1. ((a))

    WC-UL

  2. ((b))

     MS-KB

  3. ((c))

    DJ-BT

  4. ((d))

    TZ-RI

Show Answer
Answer: ((a))

WC-UL

8

Which of the following processes is mainly responsible for the loss of heat from a hot vessel?

  1. ((a))

    Radiation

  2. ((b))

    Conduction

  3. ((c))

    Absorption

  4. ((d))

    Convection

Show Answer
Answer: ((a))

Radiation

9

If a force of 6 N is applied on a body, which is displaced 2m in the direction of force, then find the work done.

  1. ((a))

     3 J

  2. ((b))

    12 J

  3. ((c))

    4 J

  4. ((d))

     10 J

Show Answer
Answer: ((a))

 3 J

10

A class of 30 students took an exam, with the average score of 12 students being 68 and the average score of the rest being 70. What is the average score of the class?

  1. ((a))

     67.2

  2. ((b))

    69.2

  3. ((c))

    70.2

  4. ((d))

    68.2

Show Answer
Answer: ((a))

 67.2

11

Ohm's law for a given potential difference (V), current (I) and resistance (R) across a conductor is given as

  1. ((a))

    I = VR

  2. ((b))

    V = I − R

  3. ((c))

    V = I + R

  4. ((d))

    V = IR

Show Answer
Answer: ((a))

I = VR

12

How does the thermal pollution of water affect the water quality?

  1. ((a))

    Sediments get settled soon

  2. ((b))

    Alters the colour of water 

  3. ((c))

    Increases pH of water

  4. ((d))

    Oxygen level in water gets reduced

Show Answer
Answer: ((a))

Sediments get settled soon

13

What is the typical range of wind speed (in m/s) required for the efficient operation of most commercial wind turbines?

  1. ((a))

    12 - 25 m/s

  2. ((b))

     0 - 2 m/s

  3. ((c))

    5 - 15 m/s 

  4. ((d))

    3 - 5 m/s

Show Answer
Answer: ((a))

12 - 25 m/s

14

If 46.4 : x :: x : 2.9, and x > 0, then find the value of x.

  1. ((a))

    15.6

  2. ((b))

    14.3

  3. ((c))

    13.4

  4. ((d))

    11.6

Show Answer
Answer: ((a))

15.6

15

The areas of three adjacent faces of a solid cuboid are 190 cm², 285 cm², and 150 cm². Find the volume (in cm³) of the cuboid.

  1. ((a))

    2850

  2. ((b))

    2716

  3. ((c))

    2896

  4. ((d))

    3076

Show Answer
Answer: ((a))

2850

16

A fruit vendor had some apples. He sold 40% of them and now has 840. How many apples did he originally have?

  1. ((a))

    1400

  2. ((b))

    1260

  3. ((c))

    1800

  4. ((d))

    2100

Show Answer
Answer: ((a))

1400

17

How many fundamental units are there in the SI system?

  1. ((a))

    14

  2. ((b))

    10

  3. ((c))

    5

  4. ((d))

    7

Show Answer
Answer: ((a))

14

18

What is recommended to be done before replacing a fuse?

  1. ((a))

    Wear safety belt.

  2. ((b))

    Wear rubber gloves.

  3. ((c))

    to close the circuit.

  4. ((d))

    Standing on a stool.

Show Answer
Answer: ((a))

Wear safety belt.

19

In a certain code language,

'A × B' means 'A is the son of B',

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

'A + B' means 'A is the wife of B', and

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

If 'M × N − P % S + T', then how is M related to T?

  1. ((a))

    wife's father's brother's son

  2. ((b))

    wife's father's brother

  3. ((c))

    wife's mother's brother's son

  4. ((d))

    wife's mother's brother

Show Answer
Answer: ((a))

wife's father's brother's son

20

Cooking utensils have metal bodies and plastic handles because _______

  1. ((a))

    Both metal and plastic are good conductors of heat.

  2. ((b))

    Metal is a good conductor of heat and plastic is a heat insulator.

  3. ((c))

    Metal is a heat insulator and plastic is a good conductor of heat.

  4. ((d))

    Both metal and plastic are heat insulators.

Show Answer
Answer: ((a))

Both metal and plastic are good conductors of heat.

21

The list price of an article is ₹5,100 and a discount of 32% is offered on the list price. What additional discount per cent on the already discounted price must be offered to a customer to bring the net selling price to ₹1,734? 

  1. ((a))

    49%

  2. ((b))

    46%

  3. ((c))

    50%

  4. ((d))

    55%

Show Answer
Answer: ((a))

49%

22

A bulb is connected to a 10 V battery for 20 seconds. If it draws a current of 2 A, calculate the heat energy generated by the bulb.

  1. ((a))

    400 J

  2. ((b))

    200 J

  3. ((c))

    100 J

  4. ((d))

    120 J

Show Answer
Answer: ((a))

400 J

23

What is the primary purpose of information kiosks set up by the government?

  1. ((a))

    To provide free food and beverages to citizens

  2. ((b))

     To offer citizens easy access to information and services such as bill payments, registrations and public information

  3. ((c))

    To allow citizens to participate in online gaming competitions

  4. ((d))

    To enable government employees to monitor social media activities of citizens

Show Answer
Answer: ((a))

To provide free food and beverages to citizens

24

Which of the following statements are true regarding general safety in the workshop?

Statement 1: Use any available tool for the job, even if it is not the correct one.

Statement 2: Keep the tools in their proper place after use.

Statement 3: Clean the machine while it is still running.

Statement 4: Replace worn-out or damaged tools immediately.

  1. ((a))

    Statements 1 and 2 are true.

  2. ((b))

     Statements 3 and 4 are true.

  3. ((c))

    Statements 1 and 3 are true. 

  4. ((d))

    Statements 2 and 4 are true.

Show Answer
Answer: ((a))

Statements 1 and 2 are true.

25

What is the proper way to handle misunderstandings in online conversations?

  1. ((a))

    Publicly embarrassing the other person

  2. ((b))

    Block that person immediately

  3. ((c))

    Addressing misunderstandings politely and privately

  4. ((d))

    Ignoring the conversation

Show Answer
Answer: ((a))

Publicly embarrassing the other person

26

A man bought two varieties of apples at ₹4 per 5 apples and ₹4 per apple, respectively. If he bought an equal number of each variety of apples and then sold all the apples at ₹3 per apple, what would his profit percentage be?

  1. ((a))

    2%

  2. ((b))

    24%

  3. ((c))

    25%

  4. ((d))

    23%

Show Answer
Answer: ((a))

2%

27

Simplify the following expression: (x−y−z)2−(x+y+z)2(x - y - z) ^ 2 - (x + y + z) ^ 2

  1. ((a))

    −4x (y + z)

  2. ((b))

    −4z (x + y)

  3. ((c))

    −4y (x + z)

  4. ((d))

    −4 (xy + yz + zx)

Show Answer
Answer: ((a))

−4x (y + z)

28

What is the process of heat transfer in liquids?

  1. ((a))

    Just conduction 

  2. ((b))

    Both conduction and radiation

  3. ((c))

    Convection

  4. ((d))

    Only radiation

Show Answer
Answer: ((a))

Just conduction 

29

In a rare coin collection, there was one gold coin for every five non-gold coins. Then, 18 more gold coins were added to the collection, after which the ratio of gold coins to nongold coins became 5 : 7. How many coins in all are now there in the collection? 

  1. ((a))

    55

  2. ((b))

    45

  3. ((c))

    75

  4. ((d))

    60

Show Answer
Answer: ((a))

55

30

A car leaves New Delhi and goes to Agra. The distance between the two cities is 300 km. Then the car returns to New Delhi. What is the total distance and displacement covered by the car? (Assume the car returns to the same destination and the route taken for both journeys is the same.)

  1. ((a))

    The distance covered is 0 km and the displacement is 600 km.

  2. ((b))

    The distance covered is 0 km and the displacement is 0 km.

  3. ((c))

    The distance covered is 300 km and displacement is 0 km.

  4. ((d))

    The distance covered is 600 km and displacement is 0 km.

Show Answer
Answer: ((a))

The distance covered is 0 km and the displacement is 600 km.

31

Samir can complete a task in 6 days, while Tanveer can do it in 8. If Amir joins them, the three can complete the entire task in 3 days. If the total payment for the work is ₹2,400, how much will Aamir receive for his contribution?

  1. ((a))

    ₹300

  2. ((b))

     ₹250

  3. ((c))

     ₹430

  4. ((d))

    ₹340

Show Answer
Answer: ((a))

₹300

32

A person saves 10% of his monthly income. If his monthly income increases by 30%, he saves 20% more than before. The percentage increase in his expenditure (rounded to two decimal places) is

  1. ((a))

    31.11%

  2. ((b))

    24.89%

  3. ((c))

    40.44%

  4. ((d))

    37.33%

Show Answer
Answer: ((a))

31.11%

33

A, B, C, D, E, F and G are seated around a round table facing the center. G sits second to the left of E. B sits third to the right of A. C is the immediate neighbour of both E and B. D sits immediate left of G. How many people sit between E and F when counted from the right of E?

  1. ((a))

    Three

  2. ((b))

    Two

  3. ((c))

    One

  4. ((d))

    Four

Show Answer
Answer: ((a))

Three

34

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

<br>

(Left)^TJ#LROY#%SU$EKQ &*£B (Right)

<br>

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

  1. ((a))

    Four

  2. ((b))

    One

  3. ((c))

    Two

  4. ((d))

    Three

Show Answer
Answer: ((a))

Four

35

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

GRAND-GRNAD-DNARG

  1. ((a))

    INDEX–DEXIN–XDEIN

  2. ((b))

    NIGHT–NGHIT–THGIN

  3. ((c))

    FRUIT–FRIUT–TIURF

  4. ((d))

    MINOR–MOINR–RNOIM

Show Answer
Answer: ((a))

INDEX–DEXIN–XDEIN

36

A train travels from A to B at a speed of 40 km/hr and returns from B to A via the same route at a speed of 10 km/hr. Find the average speed (in km/hr) of the train during the two-way journey.

  1. ((a))

    15

  2. ((b))

    14

  3. ((c))

    19

  4. ((d))

    16

Show Answer
Answer: ((a))

15

37

Find the largest four-digit number which, when divided by 21, 42, 147 and 105 leaves remainders 14, 35, 140 and 98 respectively.

  1. ((a))

    8019

  2. ((b))

    8813

  3. ((c))

    8034

  4. ((d))

    8816

Show Answer
Answer: ((a))

8019

38

Statement I and Statement II are given below. These statements may be independent causes, effects of independent causes, or common causes. One statement may be an effect of the other. Read both statements carefully and choose the correct answer.

Statement:

The traffic police have issued a traffic advisory regarding traffic diversions for the next two days due to the closure of Raj Bhavan Road.

The Municipal Corporation plans to repair potholes on Raj Bhavan Road tomorrow.

  1. ((a))

    II is the cause and I is its possible effect.

  2. ((b))

    Both I and II are effects of independent causes.

  3. ((c))

    Both I and II are independent causes.

  4. ((d))

    I is the cause and II is its possible effect.

Show Answer
Answer: ((a))

II is the cause and I is its possible effect.

39

The SI unit of luminous intensity is

  1. ((a))

    Watt

  2. ((b))

    Mol

  3. ((c))

    Meter

  4. ((d))

    Candela

Show Answer
Answer: ((a))

Watt

40

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

Statements:

Some cats are rats. All bats are tables. All rats are bats.

Conclusions:

(I): Some cats are bats.

(II): All bats are rats.

  1. ((a))

    Only conclusion (II) follows.

  2. ((b))

    Only conclusion (I) follows.

  3. ((c))

    Neither conclusion (I) nor (II) follows.

  4. ((d))

    Both conclusions (I) and (II) follow.

Show Answer
Answer: ((a))

Only conclusion (II) follows.

41

What is the normal range of temperature for a healthy human body in Kelvin?

  1. ((a))

    (301.15-323.15) K

  2. ((b))

    (283.15-323.15) K

  3. ((c))

     (308.15-315.15) K

  4. ((d))

    (293.15-323.15) K 

Show Answer
Answer: ((a))

(301.15-323.15) K

42

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

197 112 189 129 181 146 173 163?

  1. ((a))

    165

  2. ((b))

    153

  3. ((c))

    156

  4. ((d))

    144

Show Answer
Answer: ((a))

165

43

Study the following table and answer the given question.

Number of mangoes sold on MondayNumber of mangoes sold on TuesdayWednesday
Shop X581925
Shop Y423430

If a mango was sold by shop Y for ₹80 on Tuesday, then how much amount did shop Y receive on Tuesday?

  1. ((a))

    ₹2,720

  2. ((b))

    ₹2,780

  3. ((c))

    ₹2,560

  4. ((d))

    ₹2,620

Show Answer
Answer: ((a))

₹2,720

44

Which of the following options represents the equation of work done?

  1. ((a))

    Work done = Force / Displacement

  2. ((b))

    Work done = Force × Displacement

  3. ((c))

    Work done = Force + Displacement

  4. ((d))

    Work done = Force – Displacement

Show Answer
Answer: ((a))

Work done = Force / Displacement

45

In which chemical process the R group of alcohol is replaced by R' group of ester to make biodiesel from vegetable oils?

  1. ((a))

    Fermentation

  2. ((b))

    Polymerisation

  3. ((c))

    Distillation

  4. ((d))

    Transesterification

Show Answer
Answer: ((a))

Fermentation

46

The resistance of a wire is affected by which of the following factors?

  1. ((a))

    Length and cross-sectional area of ​​the wire only

  2. ((b))

    Length, cross-sectional area and material of the wire

  3. ((c))

    Wire material only

  4. ((d))

    Wire length only

Show Answer
Answer: ((a))

Length and cross-sectional area of ​​the wire only

47

In △PQR\triangle PQR, ∠Q=90∘\angle Q=90^{\circ }. If tan⁡R=12\tan R=\frac{1}{2}, then find the value of sec⁡P(3cos⁡R−sin⁡P)4csc⁡R(4sin⁡R−cos⁡P)\frac{\sec P(3\cos R-\sin P)}{4\csc R(4\sin R-\cos P)}.

  1. ((a))

    13\frac{1}{3}

  2. ((b))

    87\frac{8}{7}

  3. ((c))

    −87-\frac{8}{7}

  4. ((d))

    −13-\frac{1}{3}

Show Answer
Answer: ((a))

13\frac{1}{3}

48

Which of the following letter-number cluster will come in place of the question mark (?) in the given series?

6S, 24T, 12V, 48Y, 24C, ?

  1. ((a))

    60H

  2. ((b))

    96I

  3. ((c))

    96H

  4. ((d))

    96G

Show Answer
Answer: ((a))

60H

49

A cylindrical tank of diameter 14 m contains water up to the depth of 6 m. What is the total area of wetted surface? Use(π = 22/7).

  1. ((a))

    414 m2m^2

  2. ((b))

    418 m2m^2

  3. ((c))

    416m2m^2

  4. ((d))

    412 m2m^2

Show Answer
Answer: ((a))

414 m2m^2

50

In a project involving the design of a pipeline for a building, which technical drawings would need to be referenced together? 

  1. ((a))

    Mechanical and Electrical

  2. ((b))

    Civil and Electronics

  3. ((c))

    Mechanical and Civil 

  4. ((d))

    Electrical and Electronics

Show Answer
Answer: ((a))

Mechanical and Electrical

51

How many folds is/are required to fold an A2 size drawing sheet (420 mm × 594 mm), according to BIS SP: 46-2003? 

  1. ((a))

    1 fold

  2. ((b))

    2 folds

  3. ((c))

     4 folds

  4. ((d))

    3 folds

Show Answer
Answer: ((a))

1 fold

52

Which of the following is not a heat insulator?

  1. ((a))

    Rubber

  2. ((b))

    Silver

  3. ((c))

    Plastic

  4. ((d))

    Wool

Show Answer
Answer: ((a))

Rubber

53

There are four partners in a business, A, B, C, and D. A's investment is two-thirds of D's. B and C invest equal amounts, and C's investment is half of D's. If they earn ₹137.6 lakh at the end of one year, find the total share (in lakhs) of A and B.

  1. ((a))

    62.2

  2. ((b))

    63.2

  3. ((c))

    59.2

  4. ((d))

    60.2

Show Answer
Answer: ((a))

62.2

54

If the arithmetic mean of A and B is 70 and that of B and C is 110, then what will be the value of C-A?

  1. ((a))

    80

  2. ((b))

    90

  3. ((c))

    60

  4. ((d))

    70

Show Answer
Answer: ((a))

80

55

In a certain code language, 'GIFT' is coded as '8264' and 'FEAR' is coded as '3527'. What is the code for 'F' in the given code language?

  1. ((a))

    3

  2. ((b))

    2

  3. ((c))

    5

  4. ((d))

    6

Show Answer
Answer: ((a))

3

56

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

(Note: Operations must be performed on whole numbers, without breaking the number into its component digits. Take 13 for example. Operations such as addition/subtraction/multiplication by 13 can be performed on 13. Breaking 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

<br>

X : 179 :: 22 : Y

  1. ((a))

    X = 16, Y = 222

  2. ((b))

    X = 15, Y = 223

  3. ((c))

    X = 16, Y = 219 

  4. ((d))

    X = 18, Y = 219

Show Answer
Answer: ((a))

X = 16, Y = 222

57

A, B, C, D, E, and F live on six different floors of the same building. The ground floor is numbered 1, the floor immediately above it is numbered 2, and so on until the topmost floor is numbered 6. F lives on an even-numbered floor, but not on floor number 6. The sum of the floors on which D and F live is 9. The sum of the floors on which F and B live is 5. E lives on the floor immediately below C. How many people live between D and E?

  1. ((a))

    2

  2. ((b))

    1

  3. ((c))

    3

  4. ((d))

    4

Show Answer
Answer: ((a))

2

58

Which of the following correctly identifies the main components of a standard email structure? 

  1. ((a))

    Subject Line, Recipient Address, Message Body and Signature

  2. ((b))

    Recipient Address, CC, BCC and Attachment

  3. ((c))

    Header, Body, Footer and Encryption Key

  4. ((d))

    Username, Password, Message Body and Signature

Show Answer
Answer: ((a))

Subject Line, Recipient Address, Message Body and Signature

59

Automobile A travels a distance in 2 hours at a speed of 42 km/hr. Automobile B travels twice the distance traveled by A in 5 hours. Find the speed (in km/hr) of Automobile B.

  1. ((a))

    31.2

  2. ((b))

    34.2

  3. ((c))

    36.3

  4. ((d))

    33.6

Show Answer
Answer: ((a))

31.2

60

Find the smallest number which when divided by 5, 6 and 7 leaves remainders 4, 5 and 6.

  1. ((a))

    208

  2. ((b))

    207

  3. ((c))

    209

  4. ((d))

    210

Show Answer
Answer: ((a))

208

61

5 men or 9 women can do a piece of work in 9 days. 5 men work for 7 days and then leave. Find the number of women needed to complete the remaining work in 9 days.

  1. ((a))

    4

  2. ((b))

    2

  3. ((c))

    1

  4. ((d))

    5

Show Answer
Answer: ((a))

4

62

Which of the following statements is correct?

  1. ((a))

    The resistance increases as the length of the conductor increases.

  2. ((b))

    The resistance decreases as the length of the conductor increases.

  3. ((c))

    The resistance increases as the thickness of the conductor increases.

  4. ((d))

    The resistance remains unchanged on increasing the length of the conductor.

Show Answer
Answer: ((a))

The resistance increases as the length of the conductor increases.

63

The length of a rectangular sheet is 15.2 cm ± 0.1 cm and the width is 9.11 cm ± 0.1 * cm / 1, then what is the error in estimating the area of ​​the rectangular sheet?

  1. ((a))

    0.3 cm²

  2. ((b))

    13 cm²

  3. ((c))

    5 cm²

  4. ((d))

    2 cm²

Show Answer
Answer: ((a))

0.3 cm²

64

What is the most effective way to avoid mechanical hazards when operating large and dangerous machinery?

  1. ((a))

    Appropriate training and experience

  2. ((b))

    Regular machine maintenance only

  3. ((c))

    Employee-only physical fitness training

  4. ((d))

    Redesigning the machine to eliminate hazards

Show Answer
Answer: ((a))

Appropriate training and experience

65

If the ball is thrown upwards, then the work done by the force of gravity on the ball is:

  1. ((a))

    Negative

  2. ((b))

    Independent of the displacement of the ball

  3. ((c))

    Positive

  4. ((d))

    Zero

Show Answer
Answer: ((a))

Negative

66

Rita invests a certain sum of money at a certain rate of simple interest per annum, and the interest she receives is equal to one-fourth of the invested amount. If the time period of investment (in years) is equal to the rate of interest per annum, then for how many years did Rita invest the money?

  1. ((a))

    4

  2. ((b))

    6

  3. ((c))

    5

  4. ((d))

    7

Show Answer
Answer: ((a))

4

67

Which of the following fundamental quantities are used to express any mechanical quantity?

  1. ((a))

    Length, mass and time

  2. ((b))

     Mass, time and force

  3. ((c))

    Length, time and energy

  4. ((d))

    Length, mass and speed 

Show Answer
Answer: ((a))

Length, mass and time

68

A product with an MRP of ₹1,590 is sold by a wholesaler for ₹835. Find the percentage discount offered (rounded off to the nearest integer).

  1. ((a))

    46%

  2. ((b))

    47%

  3. ((c))

    45%

  4. ((d))

    49%

Show Answer
Answer: ((a))

46%

69

Find the value of 32 - 4 [ 4 + 5 ( 4 - 4 ( 6 - 2 ) + 4 ) - 18 ] ÷ 6.

  1. ((a))

    60

  2. ((b))

    56

  3. ((c))

    68

  4. ((d))

    58

Show Answer
Answer: ((a))

60

70

The value of 60% of 45 is how much more than 4/5 of 25?

  1. ((a))

    1

  2. ((b))

    5

  3. ((c))

    4

  4. ((d))

    7

Show Answer
Answer: ((a))

1

71

What is the first step in providing first aid for a minor burn?

  1. ((a))

    Cover the burned area with a thick cloth

  2. ((b))

    Pour cold water on the burned area

  3. ((c))

    Burst any blisters that form

  4. ((d))

    Apply butter to the burned area

Show Answer
Answer: ((a))

Cover the burned area with a thick cloth

72

The resistivity of a conductor depends on ______.

  1. ((a))

    Cross-sectional area

  2. ((b))

    Matter

  3. ((c))

    Length of conductor

  4. ((d))

    Potential difference across the ends of the conductor

Show Answer
Answer: ((a))

Cross-sectional area

73

Which ICT (Information and Communication Technology) service is commonly used for activities like railway reservation in e-governance?

  1. ((a))

    Online payment gateway

  2. ((b))

    Social media platform

  3. ((c))

    Email Services

  4. ((d))

    Web portal

Show Answer
Answer: ((a))

Online payment gateway

74

Find the energy of a 5 kg object at a height of 8 m above the ground. Let the value of 'g' be 9.8 m s².

  1. ((a))

     392 J

  2. ((b))

    784 J

  3. ((c))

    300 J

  4. ((d))

    400 J

Show Answer
Answer: ((a))

 392 J

75

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

  1. ((a))

    NQIL

  2. ((b))

    BEWZ

  3. ((c))

    RUNP

  4. ((d))

    WZRU

Show Answer
Answer: ((a))

NQIL

76

Which of the following statements is correct?

  1. ((a))

    Laboratory thermometers are used to measure the temperature of the human body.

  2. ((b))

    There is no method to convert temperature from one heat scale to another.

  3. ((c))

    The normal human body temperature is 45°C.

  4. ((d))

    The normal human body temperature is 98.6°F.

Show Answer
Answer: ((a))

Laboratory thermometers are used to measure the temperature of the human body.

77

An 8 Ω resistor generates 200 J of heat per second. Find the potential difference across the resistor.

  1. ((a))

    10 V

  2. ((b))

     30 V

  3. ((c))

    40 V

  4. ((d))

    20 V

Show Answer
Answer: ((a))

10 V

78

Which of the following is commonly used for the treatment of drinking water?

  1. ((a))

    Acid neutralization

  2. ((b))

    Chlorination

  3. ((c))

    Incineration

  4. ((d))

    Oil Filtration

Show Answer
Answer: ((a))

Acid neutralization

79

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

<br>

INK KPJ MRI OTH QWG SXF

  1. ((a))

    MRI

  2. ((b))

    QWG

  3. ((c))

    SXF

  4. ((d))

    OTH

Show Answer
Answer: ((a))

MRI

80

If '+' and '-' are interchanged and '×' and '÷' are interchanged, then what will come in place of question mark (?) in the following equation?

9 ÷ 5 + 70 × 7 − 11 = ?

  1. ((a))

    46

  2. ((b))

    47

  3. ((c))

    44

  4. ((d))

    45

Show Answer
Answer: ((a))

46

81

Neha swims in a pool that is 50 metres long. She covers 100 metres in 1 minute by swimming from one end of the pool to the other and back along the same straight path. Find her average velocity (in m/s). 

  1. ((a))

    3.2 m/s

  2. ((b))

    1.7 m/s

  3. ((c))

    2.5 m/s 

  4. ((d))

    0 m/s

Show Answer
Answer: ((a))

3.2 m/s

82

Which of the following letter-clusters should be replaced by # and % so that the pattern and relation followed between the letter-cluster pair on the left side of :: sign is the same as the pattern and relation followed between the letter-cluster pair on the right side of :: sign?

: EAG :: IEK : %

  1. ((a))

    = FBH, % = HDI

  2. ((b))

    = FBH, % = HDJ 

  3. ((c))

    = FBG, % = HDJ 

  4. ((d))

    = FBH, % = HEJ 

Show Answer
Answer: ((a))

= FBH, % = HDI

83

Which of the following statements are true regarding electrical safety practices?

  1. It is safe to plug multi-outlet bars into other multi-outlet bars as long as the total load does not exceed the rated capacity of the outlet.
  2. Electrical appliances should not be used near damp surfaces or when your hands are wet, and electrical cords should be protected by not placing them under rugs or mats.
  1. ((a))

    Neither statement 1 nor statement 2 is true.

  2. ((b))

    Only statement 2 is true.

  3. ((c))

    Both statement 1 and statement 2 are true.

  4. ((d))

    Only statement 1 is true.

Show Answer
Answer: ((a))

Neither statement 1 nor statement 2 is true.

84

The resistance of a uniform metallic conductor depends on its:

  1. ((a))

    length only

  2. ((b))

     length, area of cross-section, and nature of its material

  3. ((c))

     melting point only

  4. ((d))

    area of cross-section only

Show Answer
Answer: ((a))

length only

85

The sum of _______ is mechanical energy.

  1. ((a))

    Potential energy and kinetic energy

  2. ((b))

    Electrical energy and light energy

  3. ((c))

    Thermal energy and chemical energy

  4. ((d))

    Chemical energy and electrical energy

Show Answer
Answer: ((a))

Potential energy and kinetic energy

86

Refer to the following letter and symbol series and answer the question that follows.

 Counting to be done from left to right only.

<br>

(Left) ^TJ#LROY#E%SU$KQ&*£B (Right)

<br>

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

  1. ((a))

    Four

  2. ((b))

    Three

  3. ((c))

    Two

  4. ((d))

    One

Show Answer
Answer: ((a))

Four

87

Select the option that is true regarding the following two statements labelled Assertion (A) and Reason (R).

Assertion (A): It is safe to work under a suspended load if you are in a hurry.

Reason (R): Never exceed the safe working load (SWL) of the equipment you are using.

  1. ((a))

    Both (A) and (R) are true, and (R) is the correct explanation of (A).

  2. ((b))

    Both (A) and (R) are true, but (R) is not the correct explanation of (A).

  3. ((c))

    Assertion (A) is false, but Reason (R) is true

  4. ((d))

    Assertion (A) is true, but Reason (R) is false.

Show Answer
Answer: ((a))

Both (A) and (R) are true, and (R) is the correct explanation of (A).

88

What is a rheostat used for in an electrical circuit?

  1. ((a))

    To change the resistance in a circuit

  2. ((b))

    To measure current only

  3. ((c))

    To measure voltage only

  4. ((d))

    To measure both current and voltage

Show Answer
Answer: ((a))

To change the resistance in a circuit

89

A, B, C, D, E, F, and G are seated around a round table facing the center. Only two people sit between G and C, when counted from the left of C. F sits third to the left of E. B sits to the immediate right of E. B sits second to the left of G. D is an immediate neighbor of F. How many people sit between A and C, when counted from the right of C?

  1. ((a))

    4

  2. ((b))

    2

  3. ((c))

    3

  4. ((d))

    1

Show Answer
Answer: ((a))

4

90

In a certain code language, 'while you wait' is coded as 'ns bg sp' and 'why 1 wait now' is coded as 'kc rw bg'. How will 'wait' be coded in the given language?

  1. ((a))

    ns

  2. ((b))

    kc

  3. ((c))

    bg

  4. ((d))

    sp

Show Answer
Answer: ((a))

ns

91

The dimension of surface tension is ______.

  1. ((a))

    ML2T−2 ML^2T ^{-2}

  2. ((b))

    ML0T−2 ML^0T ^{-2}

  3. ((c))

    MLT−2 MLT ^{-2}

  4. ((d))

    ML0TML^0T

Show Answer
Answer: ((a))

ML2T−2 ML^2T ^{-2}

92

Find the kinetic energy of a body of mass 10 kg moving with a uniform velocity of ​5ms−1​5ms^{-1}.

  1. ((a))

     120 J

  2. ((b))

    125 J

  3. ((c))

    50 J

  4. ((d))

    25 J 

Show Answer
Answer: ((a))

 120 J

93

I, J, K, L, U, V and W each have their exam on a different day of the week, starting from Monday and ending on Sunday of the same week. Only two people have their exam before V. Only one person has an exam after L. Only three people have an exam between V and I. Only one person has an exam between J and K. W has an exam just before J. Who among the following has an exam on Friday?

  1. ((a))

    W

  2. ((b))

    U

  3. ((c))

    I

  4. ((d))

    V

Show Answer
Answer: ((a))

W

94

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

67 106 88 127 109 148?

  1. ((a))

    130

  2. ((b))

    126

  3. ((c))

    117

  4. ((d))

    108

Show Answer
Answer: ((a))

130

95

Which of the following materials serves as a heat insulator?

  1. ((a))

    Aluminium

  2. ((b))

    Silver

  3. ((c))

    Plastic

  4. ((d))

    Copper

Show Answer
Answer: ((a))

Aluminium

96

Which of the following units is used to measure only basic physical quantities?

  1. ((a))

    Derived unit

  2. ((b))

    Basic unit

  3. ((c))

    Neither basic nor derived units

  4. ((d))

    Both basic and derived units

Show Answer
Answer: ((a))

Derived unit

97

Which of the following terms describes the process of the gradual increase in the average temperature of the Earth's atmosphere, due to the greenhouse effect caused by increased levels of carbon dioxide, CFCs and other pollutants?

  1. ((a))

    Acid rain

  2. ((b))

    Global warming

  3. ((c))

    Ozone depletion 

  4. ((d))

    Deforestation

Show Answer
Answer: ((a))

Acid rain

98

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

(Note: Operations must be performed on whole numbers, without breaking the number into its component digits. Take 13 for example. Operations such as addition/subtraction/multiplication by 13 can be performed on 13. Breaking 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

68-136-121-363;

29-58-43-129

  1. ((a))

    35 – 70 – 55 – 165

  2. ((b))

    42 – 84 – 74 – 222

  3. ((c))

    13 – 26 – 46 – 138

  4. ((d))

    73 – 146 – 114 – 228

Show Answer
Answer: ((a))

35 – 70 – 55 – 165

99

The measures of two supplementary angles are in the ratio 3 : 7. Find the measure of the greater of the two angles. 

  1. ((a))

    180° 

  2. ((b))

    54°

  3. ((c))

    144°

  4. ((d))

    126°

Show Answer
Answer: ((a))

180° 

100

The sum of the ages of a grandfather, his son, and his grandson is 128 years. The grandfather is twice as old as his son, and the son is five times his grandson. Find the grandson's age (in years).

  1. ((a))

    9

  2. ((b))

    8

  3. ((c))

    6

  4. ((d))

    7

Show Answer
Answer: ((a))

9

Part B (75 questions)

101

If a machine has an efficiency of 80%, it means: 

  1. ((a))

    the machine has a velocity ratio and mechanical advantage both equal to 80

  2. ((b))

    the machine loses 20% of the input 

  3. ((c))

    the machine does not have any loss in input energy 

  4. ((d))

    the machine produces more output than input 

Show Answer
Answer: ((a))

the machine has a velocity ratio and mechanical advantage both equal to 80

102

When did India implement the Hazardous Wastes (Management and Handling) Rules to regulate the disposal and handling of hazardous waste?

  1. ((a))

    1989

  2. ((b))

    1987

  3. ((c))

    1982

  4. ((d))

    2000

Show Answer
Answer: ((a))

1989

103

What is the function of cooling fins in a tubular-type radiator core?

  1. ((a))

     To support tubes  

  2. ((b))

    To strengthen structure

  3. ((c))

    To circulate water  

  4. ((d))

    To absorb and radiate heart

Show Answer
Answer: ((a))

 To support tubes  

104

What is the primary principle behind the generation of electrical energy in a piezoelectric device? 

  1. ((a))

    Conversion of mechanical stress into electrical energy 

  2. ((b))

    Conversion of light energy into electrical energy 

  3. ((c))

    Conversion of chemical energy into electrical energy

  4. ((d))

    Conversion of thermal energy into electrical energy

Show Answer
Answer: ((a))

Conversion of mechanical stress into electrical energy 

105

Which of the following punch marks is used for the correct location and seating of the divider point?

  1. ((a))

    Centre punch marks of 60° 

  2. ((b))

    Prick punch marks of 30°

  3. ((c))

    Prick punch marks of 120°

  4. ((d))

    Centre punch marks of 30° 

Show Answer
Answer: ((a))

Centre punch marks of 60° 

106

What is the accuracy level of a vernier caliper that can be read?

  1. ((a))

    0.02 mm

  2. ((b))

    0.01 mm 

  3. ((c))

    0.1 mm 

  4. ((d))

    0.2 mm 

Show Answer
Answer: ((a))

0.02 mm

107

Which of the following emission control devices is a charcoal filled device?

  1. ((a))

    EGR valve 

  2. ((b))

    EVAP canister

  3. ((c))

    Oxygen sensor 

  4. ((d))

    Catalytic converter 

Show Answer
Answer: ((a))

EGR valve 

108

Match the correct length and breadth of the Trimmed sizes of sheets. 

DesignationTrimmed size
A. A0P. 297 × 420
B. A1Q. 420× 594
C. A2R. 594 × 841
D. A3S. 841 × 1189
  1. ((a))

     A - S, B - R, C - Q, D - P

  2. ((b))

     A - R, B - S, C - Q, D - P

  3. ((c))

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

  4. ((d))

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

Show Answer
Answer: ((a))

 A - S, B - R, C - Q, D - P

109

When drawing a curved line of a specific length in an engineering drawing, which tool is most appropriate for ensuring accuracy?

  1. ((a))

    Protractor

  2. ((b))

    Straightedge

  3. ((c))

    French Curve 

  4. ((d))

    Compass

Show Answer
Answer: ((a))

Protractor

110

Which of the following statements is correct about a protractor?

Statements:

  1. A protractor can be used to measure angles from both sides.
  2. A protractor is typically made of a rigid metal material.
  1. ((a))

    Neither statement is true

  2. ((b))

    Only statement 1 is true 

  3. ((c))

    Only statement 2 is true

  4. ((d))

    Both statements are true 

Show Answer
Answer: ((a))

Neither statement is true

111

A cylinder head gasket is incorporated between which of the following two parts of the engine? 

  1. ((a))

    Puppet valve and cylinder block

  2. ((b))

    Cylinder block and cylinder head

  3. ((c))

    Piston ring and cylinder head 

  4. ((d))

    Cylinder head and water jacket

Show Answer
Answer: ((a))

Puppet valve and cylinder block

112

What does SCR stand for in the diesel exhaust treatment? 

  1. ((a))

    Solid Catalytic Reduction 

  2. ((b))

    Selective Catalytic Reduction 

  3. ((c))

    Standard Catalytic Reaction 

  4. ((d))

     Selective Carbon Reduction

Show Answer
Answer: ((a))

Solid Catalytic Reduction 

113

Which component assists the pneumatic governor of FIP in diesel engines? 

  1. ((a))

    Intercooler

  2. ((b))

    Turbocharger

  3. ((c))

    Exhauster

  4. ((d))

    Fuel injector

Show Answer
Answer: ((a))

Intercooler

114

The basic function of the connecting rod is to convert: 

  1. ((a))

    the linear motion of the crankshaft into rotary motion of piston

  2. ((b))

    the reciprocating motion of piston to the rotary motion of the crankshaft  

  3. ((c))

     the reciprocating motion of piston head to the rotary motion of the camshaft

  4. ((d))

    the curvilinear motion of piston to the linear motion of the camshaft

Show Answer
Answer: ((a))

the linear motion of the crankshaft into rotary motion of piston

115

Which of the following parts of a dial bore gauge is used to hold all the components together and contains a mechanism for transmitting the plunger motion to the dial? 

  1. ((a))

    Anvil

  2. ((b))

    Extension rings

  3. ((c))

    Stem

  4. ((d))

    Sliding plunger

Show Answer
Answer: ((a))

Anvil

116

What is the function of non-return valve (NRV) in a hydraulic system? 

  1. ((a))

    To increase system temperature

  2. ((b))

    To control the viscosity of the fluid 

  3. ((c))

     To control the pressure in both directions 

  4. ((d))

    To allow flow in one direction 

Show Answer
Answer: ((a))

To increase system temperature

117

As per the SAE viscosity rating, which of the following numbers reflects thicker oil that better resists viscosity breakdown in the summer season?

  1. ((a))

    40W to 50W 

  2. ((b))

    100W to 160W

  3. ((c))

    −6W to −70W 

  4. ((d))

    0W to 5W 

Show Answer
Answer: ((a))

40W to 50W 

118

Which of the following is an example of a p-type semiconductor?

  1. ((a))

    Germanium doped with phosphorus

  2. ((b))

    Silicon doped with arsenic

  3. ((c))

    Silicon doped with boron 

  4. ((d))

    Silicon doped with phosphorus

Show Answer
Answer: ((a))

Germanium doped with phosphorus

119

Which of the following parts of an engine adjusts the opening times of the valves to suit all operating conditions and ensures ideal charge cycles within a wide range of engine speeds and loads?

  1. ((a))

    Crank

  2. ((b))

    Camshaft

  3. ((c))

    Rocker arm

  4. ((d))

    Crankshaft

Show Answer
Answer: ((a))

Crank

120

_______ is a type of spring that is often used as part of the vehicle clutch assembly, and its main function is to engage and disengage the pressure plate and the driven plate (clutch disk). 

  1. ((a))

    Diaphragm spring 

  2. ((b))

    Spiral spring  

  3. ((c))

    Laminated spring 

  4. ((d))

    Leaf spring 

Show Answer
Answer: ((a))

Diaphragm spring 

121

Which of the following is a correct function of the indirect injection combustion chamber?

  1. ((a))

    It accommodates the port (Inlet and Outlet) for In & Out of air

  2. ((b))

    It houses and guides the crankshaft. 

  3. ((c))

    It does not have properties to withstand temperature variations. 

  4. ((d))

    There is a confined space in it, in which the air and fuel mixtures are burned.

Show Answer
Answer: ((a))

It accommodates the port (Inlet and Outlet) for In & Out of air

122

What does an optical pyrometer measure?

  1. ((a))

    The pressure of gases 

  2. ((b))

    The temperature of the surface

  3. ((c))

    The volume of liquids

  4. ((d))

    The relative density of liquids

Show Answer
Answer: ((a))

The pressure of gases 

123

In which part of the IC engine does a piston move during operation?

  1. ((a))

    Cylinder head 

  2. ((b))

    Crankcase

  3. ((c))

    Sump

  4. ((d))

     Cylinder liner

Show Answer
Answer: ((a))

Cylinder head 

124

A torsion bar is a steel bar operated by:

  1. ((a))

    both tensile and compressive stresses 

  2. ((b))

    both compressive stress and twisting stress

  3. ((c))

    both shear strain and longitudinal strain

  4. ((d))

    both twisting and shear stresses

Show Answer
Answer: ((a))

both tensile and compressive stresses 

125

What component blows air across the intercooler fins?

  1. ((a))

    Exhaust fan 

  2. ((b))

    Engine cooling fan

  3. ((c))

    Turbocharger 

  4. ((d))

    Air filter

Show Answer
Answer: ((a))

Exhaust fan 

126

Which of the following is true for a given fixed compression ratio? 

  1. ((a))

    Dual cycle is the most efficient. 

  2. ((b))

    Otto cycle is the most efficient. 

  3. ((c))

    Diesel cycle is the most efficient.  

  4. ((d))

    Both Otto and Diesel cycles are equally efficient.

Show Answer
Answer: ((a))

Dual cycle is the most efficient. 

127

A device operates at 240 V and consumes 480 W of power. What is the current flowing through the device?

  1. ((a))

    1 A

  2. ((b))

    2.5 A

  3. ((c))

    2 A

  4. ((d))

    1.5 A

Show Answer
Answer: ((a))

1 A

128

Final drive is the last stage of power transmission from the propeller shaft to rear axles and then to the wheels. To which of the following angles does it turn the propeller shaft motion?

  1. ((a))

     Equal and opposite angle to drive the rear axle 

  2. ((b))

    45 degree angle to drive the rear axle  

  3. ((c))

    −45 degree to drive the front axle 

  4. ((d))

    Right angle to drive the rear axle 

Show Answer
Answer: ((a))

 Equal and opposite angle to drive the rear axle 

129

Identify the type of brazed joint shown below.

  1. ((a))

    Butted Flange

  2. ((b))

    Strapped Lap

  3. ((c))

    Simple Lap

  4. ((d))

    Joggle Lap

Show Answer
Answer: ((a))

Butted Flange

130

Which of the following is a fundamental unit? 

  1. ((a))

    newton

  2. ((b))

    watt

  3. ((c))

    pascal

  4. ((d))

    metre

Show Answer
Answer: ((a))

newton

131

Which of the following types of valves is NOT used in the four stroke engine? 

  1. ((a))

    Rotary valves

  2. ((b))

    Poppet valves 

  3. ((c))

    Reed valves 

  4. ((d))

    Butterfly valves 

Show Answer
Answer: ((a))

Rotary valves

132

Why are fins provided over the cylinder in air-cooled engines?

  1. ((a))

    To increase cooling surface 

  2. ((b))

    To provide structural support 

  3. ((c))

    To reduce engine noise 

  4. ((d))

    For direct air flow

Show Answer
Answer: ((a))

To increase cooling surface 

133

What is the primary purpose of applying brakes in a vehicle?

  1. ((a))

    To stop or slow down the vehicle  

  2. ((b))

    To improve fuel efficiency

  3. ((c))

    To increase the speed of the vehicle

  4. ((d))

    To open the fuel tank 

Show Answer
Answer: ((a))

To stop or slow down the vehicle  

134

What type of bearing is fitted into the connecting rod, allowing the gudgeon pin to provide bearing for the oscillating small end of the connecting rod?

  1. ((a))

    Journal bearing

  2. ((b))

    Needle bearing

  3. ((c))

    Tapper roller bearing

  4. ((d))

    Ball bearing

Show Answer
Answer: ((a))

Journal bearing

135

As the piston moves up to create a compression force, which of the following parts movements leads to inlet valve closure in engine?

  1. ((a))

    Helical spring movement

  2. ((b))

    Crankshaft movement

  3. ((c))

    Camshaft movement

  4. ((d))

    Connecting rod movement

Show Answer
Answer: ((a))

Helical spring movement

136

A type of chamber in which the combustion space is essentially a single cavity with little restriction on one part of the chamber to the other, and hence with no large difference in pressure between parts of the chamber during the combustion process is known as: 

  1. ((a))

    air-cell combustion chamber

  2. ((b))

    open combustion chamber 

  3. ((c))

    pre-combustion chamber 

  4. ((d))

    shallow depth combustion chamber

Show Answer
Answer: ((a))

air-cell combustion chamber

137

Which of the following types of wooden mallets are used for general purpose work such as flattening and bending?

  1. ((a))

    End-faked mallets

  2. ((b))

    Bossing mallets  

  3. ((c))

    Standard wooden mallets 

  4. ((d))

    Side-faked mallets

Show Answer
Answer: ((a))

End-faked mallets

138

The exhaust gases in a two stroke engine are driven out by:

  1. ((a))

    fresh charge of fuel entering the cylinder nearly at the end of the compression stroke

  2. ((b))

     fresh air entering the casing nearly at the end of the suction stroke

  3. ((c))

    left out charge of fuel from exhaust entering the cylinder nearly at the end of the working stroke

  4. ((d))

     fresh charge of fuel entering the cylinder nearly at the end of the working stroke

Show Answer
Answer: ((a))

fresh charge of fuel entering the cylinder nearly at the end of the compression stroke

139

Which of the following statements is/are correct?

Statement I - The annealing process uses heat to reduce the hardness and increase the ductility and toughness of various steels, cast iron, and alloys.

Statement II - Quenching is a rapid cooling process that alters specific properties of materials by manipulating the cooling rate.

  1. ((a))

    Statement (I) and (II) both are correct.

  2. ((b))

     Statement (I) is incorrect but Statement (II) is correct. 

  3. ((c))

    Statement (I) is correct but Statement (II) is incorrect. 

  4. ((d))

    Statement (I) and (II) both are incorrect. 

Show Answer
Answer: ((a))

Statement (I) and (II) both are correct.

140

Which of the following statements is correct about a diesel cycle and its air standard efficiency with respect to the compression ratio?

  1. ((a))

    The air standard efficiency of a diesel cycle increases with the increase in the compression ratio. 

  2. ((b))

     The air standard efficiency decreases with the increase in the compression ratio. 

  3. ((c))

    The maximum compression ratio for the diesel engine is limited by detonation.

  4. ((d))

    For a given compression ratio, Otto cycle is the least efficient while the diesel cycle is the most efficient. 

Show Answer
Answer: ((a))

The air standard efficiency of a diesel cycle increases with the increase in the compression ratio. 

141

Which of the following methods is implemented for locking a semi floating type piston pin? 

  1. ((a))

    Gluing

  2. ((b))

    Screw

  3. ((c))

    Welding

  4. ((d))

    Riveting

Show Answer
Answer: ((a))

Gluing

142

Why do diesel engines generally produce more noise, vibration, and harshness (NVH) compared to petrol engines?

  1. ((a))

    Due to lower combustion temperaturev 

  2. ((b))

    Due to simpler combustion method

  3. ((c))

    Due to less efficient fuel usage 

  4. ((d))

    Due to rapid combustion pressure and high pressure

Show Answer
Answer: ((a))

Due to lower combustion temperaturev 

143

Which of the following types of shafts allows easy implementation of a 4 valve per cylinder configuration? 

  1. ((a))

    Crankshaft of multicylinder engine setup

  2. ((b))

    Single overhead cam setup

  3. ((c))

    Dual overhead cam setup

  4. ((d))

    Cam and follower rocker arm setup

Show Answer
Answer: ((a))

Crankshaft of multicylinder engine setup

144

In engineering drawing (lettering and numbering), a single stroke means that the _______________. 

  1. ((a))

    thickness of the line of the letter or number is obtained in three strokes of the pencil

  2. ((b))

    thickness of the line of the letter or number is obtained in one stroke of the pencil 

  3. ((c))

    thickness of the line of the letter or number is obtained in two strokes of the pencil 

  4. ((d))

    thickness of the line of the letter or number is obtained in no strokes of the pencil

Show Answer
Answer: ((a))

thickness of the line of the letter or number is obtained in three strokes of the pencil

145

Which of the following is a cause of high oil consumption in the engine cylinder? 

  1. ((a))

    Blocked oil strainer

  2. ((b))

    Oil reaching to combustion

  3. ((c))

    High oil level in the sump

  4. ((d))

     Worn out oil pump gear

Show Answer
Answer: ((a))

Blocked oil strainer

146

Which of the following uses of wire gauge is INCORRECT?

  1. ((a))

    It does not help determine how much current a wire can carry. 

  2. ((b))

     It is used in electrical installations, welding and other applications. 

  3. ((c))

    Using the wrong wire gauge can damage appliances and electronic devices. 

  4. ((d))

    It measures the diameter of a wire.

Show Answer
Answer: ((a))

It does not help determine how much current a wire can carry. 

147

The distance a cam lobe rises away from the base circle of the camshaft is known as: 

  1. ((a))

    rocker arm lift

  2. ((b))

    lobe lift

  3. ((c))

    mushroom valve lift

  4. ((d))

    gross lift 

Show Answer
Answer: ((a))

rocker arm lift

148

What is the chemical effect that occurs in a battery during the charging process of a Lead Acid battery? 

  1. ((a))

    Water dissociation into hydrogen and oxygen 

  2. ((b))

     Lead sulphate decomposes into lead and sulphuric acid

  3. ((c))

    Sulphuric acid dissociates into hydrogen and sulphate ions

  4. ((d))

    Lead reacts with sulphur to form lead sulphate

Show Answer
Answer: ((a))

Water dissociation into hydrogen and oxygen 

149

A constant mesh gearbox usually comes with how many manual transmission configurations?

  1. ((a))

    It comes with a 6-speed 1-reverse manual transmission configuration.

  2. ((b))

    It comes with a 3-speed 1-reverse manual transmission configuration. 

  3. ((c))

    It comes with a 5-speed 1-reverse manual transmission configuration. 

  4. ((d))

    It comes with a 4-speed 1-reverse manual transmission configuration. 

Show Answer
Answer: ((a))

It comes with a 6-speed 1-reverse manual transmission configuration.

150

What conditions lead to the formation of oxides of nitrogen during combustion in the exhaust gases of an IC engine?

  1. ((a))

    High temperature and low pressure

  2. ((b))

    Low temperature and low pressure 

  3. ((c))

    Low temperature and high pressure 

  4. ((d))

    High temperature and high pressure 

Show Answer
Answer: ((a))

High temperature and low pressure

151

Which of the following types of engines has irregular operation that occurs because the amount of fresh mixture entering the cylinder is not enough to clear all the exhaust gases and a part of it remains in the cylinder to contaminate the charge?

  1. ((a))

    Two-stroke diesel engine 

  2. ((b))

    Two-stroke petrol engine

  3. ((c))

    Four-stroke diesel cycle

  4. ((d))

    Four-stroke petrol engine

Show Answer
Answer: ((a))

Two-stroke diesel engine 

152

Which of the following is a key advantage of using Thyristors in power control applications? 

  1. ((a))

    High efficiency and low power loss 

  2. ((b))

    Low voltage handling capabilities 

  3. ((c))

    High frequency switching 

  4. ((d))

    Small size and low cost

Show Answer
Answer: ((a))

High efficiency and low power loss 

153

Why are metal dispersants or detergents used as additives in lubrication oil?

  1. ((a))

    These are used to control viscosity index and wax formation throughout the system at high temperature 

  2. ((b))

    These are used to control deposit formation throughout the system 

  3. ((c))

    These are used to control the formation of sedimentation of particles throughout the system 

  4. ((d))

     These are used to control bubbles formation and mist throughout the system 

Show Answer
Answer: ((a))

These are used to control viscosity index and wax formation throughout the system at high temperature 

154

Which of the following statements is NOT correct about the steering system in vehicles? 

  1. ((a))

    It should minimise the turning effort applied on the steering wheel by the driver by use of overdamped damper

  2. ((b))

    It should multiply the turning effort applied on the steering wheel by the driver.

  3. ((c))

    It should not transmit the shocks of the road surface encountered by wheels to the driver hands.  

  4. ((d))

    The function of the steering system is to convert the rotary movement of the steering wheel into the angular turn of the front wheels

Show Answer
Answer: ((a))

It should minimise the turning effort applied on the steering wheel by the driver by use of overdamped damper

155

How does the EGR valve help control NOx formation and engine knock?

  1. ((a))

    By limiting the exhaust flow

  2. ((b))

    By adding exhaust gas to the intake mixture

  3. ((c))

    By raising the intake air temperature 

  4. ((d))

    By improving the fuel injection timing

Show Answer
Answer: ((a))

By limiting the exhaust flow

156

What should be done if the starter motor pinion gear teeth are worn out? 

  1. ((a))

    Repair the pinion.

  2. ((b))

    Tighten the starter motor mounting. 

  3. ((c))

    Clean the plunger contact point 

  4. ((d))

    Replace the pinion.

Show Answer
Answer: ((a))

Repair the pinion.

157

In engineering drawing, what is defined as the path of a moving point with no thickness?

  1. ((a))

    Point

  2. ((b))

    Line

  3. ((c))

    Curve

  4. ((d))

    Angle

Show Answer
Answer: ((a))

Point

158

Which of the following types of wooden mallets are used for hollowing panel beatings?

  1. ((a))

    Bossing mallets 

  2. ((b))

    End-faked mallets

  3. ((c))

    Standard wooden mallets 

  4. ((d))

    Side-faked mallets 

Show Answer
Answer: ((a))

Bossing mallets 

159

What is waste?

  1. ((a))

    Unwanted or unusable materials

  2. ((b))

    Natural resources for living organisms

  3. ((c))

    Useful materials for industries  

  4. ((d))

    Valuable substances for agriculture 

Show Answer
Answer: ((a))

Unwanted or unusable materials

160

Pencils are rated in engineering drawings based on the _________________.

  1. ((a))

    hardness or softness of the lead

  2. ((b))

    colour of the lead 

  3. ((c))

    shape of the lead 

  4. ((d))

    durability of the lead

Show Answer
Answer: ((a))

hardness or softness of the lead

161

Why is it important to follow proper disposal procedures for industrial waste?

  1. ((a))

    To prevent waste from being scattered anywhere

  2. ((b))

    To save time and cost in waste classification

  3. ((c))

    To reduce the number of necessary waste bins

  4. ((d))

    To comply with environmental regulations and to reduce pollution

Show Answer
Answer: ((a))

To prevent waste from being scattered anywhere

162

How is the alternating current (AC) converted to direct current (DC) in an alternator? 

  1. ((a))

    Using a transformer

  2. ((b))

    Using a capacitor 

  3. ((c))

    Using silicon diodes

  4. ((d))

    Using an inverter 

Show Answer
Answer: ((a))

Using a transformer

163

What is the blade length of the T1 'T' square, as per IS:1360-1989? 

  1. ((a))

    700 mm

  2. ((b))

    500 mm

  3. ((c))

    1500 mm

  4. ((d))

    1000 mm

Show Answer
Answer: ((a))

700 mm

164

Which of the following is NOT a correct statement about the torsion spring? 

  1. ((a))

    This spring provides very neat and compact design.

  2. ((b))

    It takes the driving or braking torque, and additional link mechanisms are not required for this purpose. 

  3. ((c))

    It is lighter than leaf spring system.

  4. ((d))

    This spring needs less space.

Show Answer
Answer: ((a))

This spring provides very neat and compact design.

165

What happens when the brake pedal is pressed in a pedal-assisted type brake?

  1. ((a))

    The power cylinder is activated.

  2. ((b))

    The engine shuts down.

  3. ((c))

    The accelerator is engaged.

  4. ((d))

    The clutch is released. 

Show Answer
Answer: ((a))

The power cylinder is activated.

166

Which of the following is the key difference between a fuse and a circuit breaker? 

  1. ((a))

    A fuse is used for high-voltage circuits, while a circuit breaker is used for low-voltage circuits.

  2. ((b))

    A fuse is a one-time-use device, while a circuit breaker can be reset and reused.

  3. ((c))

    A fuse can be reset after tripping, while a circuit breaker must be replaced. 

  4. ((d))

    A fuse is a mechanical device, while a circuit breaker is an electronic device

Show Answer
Answer: ((a))

A fuse is used for high-voltage circuits, while a circuit breaker is used for low-voltage circuits.

167

What force (effort) will be required to push a load, initially at rest, of mass 500 g, so that at a distance of 20 m, its final velocity is 20 m/sec [Assume that there is no friction and ‘g’ = 10 m/s2 ].

  1. ((a))

    10 N

  2. ((b))

    5 N

  3. ((c))

    10 J

  4. ((d))

    5 J

Show Answer
Answer: ((a))

10 N

168

What is the role of baffles in the fuel tank? 

  1. ((a))

    To store more fuel 

  2. ((b))

    To minimise fuel slushing

  3. ((c))

    To filter impurities 

  4. ((d))

    To indicate fuel level

Show Answer
Answer: ((a))

To store more fuel 

169

_____ brakes are a type of brake in which the fluid from the master cylinder is forced into a caliper where it presses against a piston. The piston in turn squeezes two brake pads against the disc (rotor), which is attached to wheel, forcing it to slow down or stop. 

  1. ((a))

    Electrical 

  2. ((b))

    Vacuum

  3. ((c))

    Drum

  4. ((d))

    Disk

Show Answer
Answer: ((a))

Electrical 

170

If the coefficient of linear expansion of a material is 2 × 10-5 °C-1, what does it mean? 

  1. ((a))

    The material expands by 2 × 10-5 times its original volume per degree Celsius

  2. ((b))

    The material expands by 2 × 10-5 times its original length per degree Celsius

  3. ((c))

    The material always increases by 2 × 10-5 kg when temperature is increased by 1°C

  4. ((d))

    The material expands by 2 × 10-5 times its original area per degree Celsius 

Show Answer
Answer: ((a))

The material expands by 2 × 10-5 times its original volume per degree Celsius

171

Which of the following statements correctly describes the placement and purpose of orientation marks on a drawing sheet?

  1. Orientation marks are placed at two opposite corners of the drawing sheet to indicate the correct orientation on the drawing board.
  2. Orientation marks consist of arrow heads placed across the frame, with one at the shorter side and one at the longer side, coinciding with the centering marks.
  3. One of the orientation marks always points towards the draughtsman, indicating the direction in which the drawing sheet should be placed.
  4. Orientation marks are used to mark the midpoint of each side of the drawing sheet for accurate centering.
  1. ((a))

    1 and 4 only

  2. ((b))

    2 and 3 only 

  3. ((c))

    1, 2, and 4 only

  4. ((d))

    1, 2, and 3 only

Show Answer
Answer: ((a))

1 and 4 only

172

What do the SAE viscosity rating numbers denote, such as 0W or 5W? 

  1. ((a))

    Denotes thicker oil that better resists viscosity breakdown when hot 

  2. ((b))

    Easier oil flow for cold starting

  3. ((c))

    Denotes thicker oil that better resists viscosity breakdown when cold

  4. ((d))

    High viscosity oil and difficult flow for cold starting

Show Answer
Answer: ((a))

Denotes thicker oil that better resists viscosity breakdown when hot 

173

Which of the following punches is used to make deeper witness marks on scribed lines and make it easier for the drill to start correctly?

  1. ((a))

    Pin punch

  2. ((b))

    Prick punch

  3. ((c))

    Centre punch

  4. ((d))

    Solid punch 

Show Answer
Answer: ((a))

Pin punch

174

What component in an adjustable flow control (throttle) valve controls the flow? 

  1. ((a))

    Ball poppet 

  2. ((b))

    Check valve

  3. ((c))

    Needle-shaped plunger

  4. ((d))

    Spring-loaded piston 

Show Answer
Answer: ((a))

Ball poppet 

175

Which of the following parts of a hammer-head is used for shaping and forming work like riveting and bending? 

  1. ((a))

    Eyehole 

  2. ((b))

    Cheek 

  3. ((c))

    Pein 

  4. ((d))

    Face

Show Answer
Answer: ((a))

Eyehole 

Attempt this paper under real exam conditions

Timed interface, section switching, instant scoring, and question-by-question analytics — free.

Start Timed Attempt