Official Paper

RRB ALP CBT-II (Electrician) Official Paper (Held On: 06 May, 2025 Shift 1) (Previous Year Paper)

175 questions · 150 minutes · with answers · free

Attempt as Timed Mock Test

Part A (100 questions)

1

In this question, a statement is given followed by two courses of action, numbered I and II. You must assume everything in the statement to be true, and on the basis of the information given in the statement, decide which of the given courses of action logically follow(s) for pursuing.

Statement:

A major fire broke out this afternoon in a mall in Jaipur, causing several casualties amongst the people present inside.

Courses of Action:

The police must check to see if the fire safety regulations were followed by the mall.

Traffic police must divert traffic away from the fire site, to enable evacuation of people.

  1. ((a))

    Only II follows.

  2. ((b))

    Neither I nor II follows.

  3. ((c))

    Both I and II follow.

  4. ((d))

    Only I follows.

Show Answer
Answer: ((a))

Only II follows.

2

The taxi charges in a city consist of a fixed charge together with the charge per kilometre for the distance covered. For a distance of 35 km, the charge paid is ₹375 and for a distance of 48 km, the charge paid is ₹427. Find the fixed charges and the charge per km (in ₹), respectively.

  1. ((a))

    220 and 6

  2. ((b))

    227 and 5

  3. ((c))

    235 and 4

  4. ((d))

    275 and 3

Show Answer
Answer: ((a))

220 and 6

3

Which technology operates through an electrochemical process that transforms the energy stored in hydrogen gas (H2) and oxygen into electrical power without combustion?

  1. ((a))

    Hydroelectric power

  2. ((b))

    Solar thermal power

  3. ((c))

    Hydrogen fuel cells

  4. ((d))

    Wind power

Show Answer
Answer: ((a))

Hydroelectric power

4

Seema is twice as old as Alka. If nine years is subtracted from Alka’s age and six years is added to Seema’s age, then Seema will be four times Alka’s age. How old was Alka three years ago? 

  1. ((a))

    18 years

  2. ((b))

    21 years

  3. ((c))

    16 years

  4. ((d))

    20 years

Show Answer
Answer: ((a))

18 years

5

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:

Some ships are boats.

All boats are submarines.

Some submarines are yachts

Conclusions:

(I) Some yachts are boats.

(II) Some yachts are ships.

  1. ((a))

    Only conclusion (I) follows. 

  2. ((b))

    Both conclusions (I) and (II) follow.

  3. ((c))

    Only conclusion (II) follows.

  4. ((d))

    Neither conclusion (I) nor (II) follows.

Show Answer
Answer: ((a))

Only conclusion (I) follows. 

6

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. Only three people sit to the right of R. D faces the person who is the immediate neighbour of S and P. C faces the person who sits second to the left of S. R does not face A.

Who amongst the following faces B?

  1. ((a))

    R

  2. ((b))

    S

  3. ((c))

    P

  4. ((d))

    Q

Show Answer
Answer: ((a))

R

7

In Engineering Drawing, which of the following is the correct definition of the term 'dimension'. 

  1. ((a))

    The thickness of the line of a letter

  2. ((b))

    A continuous thick or wide line along which the prints are trimmed

  3. ((c))

    A line that is drawn to make a section evident

  4. ((d))

    A numerical value expressed in an appropriate unit of measurement 

Show Answer
Answer: ((a))

The thickness of the line of a letter

8

In a certain code language, ‘LOVE’ is coded as ‘8364’ and ‘EARS’ is coded as ‘3517’. What is the code for ‘E’ in the given code language?

  1. ((a))

    7

  2. ((b))

    5

  3. ((c))

    3

  4. ((d))

    4

Show Answer
Answer: ((a))

7

9

Study the given pie chart and answer the question that follows.

The given pie chart indicates the percentage-wise breakup of students in different subjects. The total number of students in the college is 5000.

What is the ratio of the students studying Zoology to the students studying Botany?

  1. ((a))

    15 : 14 

  2. ((b))

    15 : 16

  3. ((c))

    14 : 15

  4. ((d))

    16 : 15

Show Answer
Answer: ((a))

15 : 14 

10

Which of the following steps is essential when configuring a web browser to enhance both security and privacy for a user?

  1. ((a))

    Enabling pop-ups for all websites to improve user experience

  2. ((b))

    Setting the homepage to a frequently visited website for quick access

  3. ((c))

    Configuring the browser to block third-party cookies and enabling HTTPS-only mode

  4. ((d))

    Disabling the browser's cache to improve website loading times 

Show Answer
Answer: ((a))

Enabling pop-ups for all websites to improve user experience

11

Which of the following benefits can be obtained by conducting an energy audit in a commercial building?

  1. ((a))

    Increasing the cost of energy bills

  2. ((b))

    Identification of opportunities for energy savings

  3. ((c))

    Reduction in price of energy per its unit usage

  4. ((d))

    Reduced market value of building

Show Answer
Answer: ((a))

Increasing the cost of energy bills

12

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

17 29 41 59 77 101 125 ?

  1. ((a))

    175

  2. ((b))

    161

  3. ((c))

    155

  4. ((d))

    149 

Show Answer
Answer: ((a))

175

13

Which of the following options is correct when two objects at the same temperature are kept in contact with each other? 

  1. ((a))

    Both objects transfer heat to each other.

  2. ((b))

    Heat is transferred from object 2 to object 1.

  3. ((c))

    No heat is transferred.

  4. ((d))

    Heat is transferred from object 1 to object 2. 

Show Answer
Answer: ((a))

Both objects transfer heat to each other.

14

What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?

32 + 28 ÷ 3 × 4 − 15 = ?

  1. ((a))

    32

  2. ((b))

    26

  3. ((c))

    29

  4. ((d))

    20

Show Answer
Answer: ((a))

32

15

Mangal starts from Point A and walks 14 m towards north. He takes a right turn, walks 9 m and then takes a right turn, walks 37 m, reaches Point B and stops. Jayanti starts from Point Z which is 15 m towards the east of Point B. She walks 11 m towards east, takes a left turn, walks 42 m, turns left and walks 63 m, turns left and walks 19 m and stops at Point Y. What is the shortest distance between Point A and Point Y? (All turns are 90 degree turns only.) 

  1. ((a))

    25 m

  2. ((b))

    28 m

  3. ((c))

    26 m

  4. ((d))

    31 m

Show Answer
Answer: ((a))

25 m

16

What is the amount of work done in moving a charge of 6 C from a point with a potential of 120 V to a point with a potential of 140 V? 

  1. ((a))

    840 J

  2. ((b))

    120 J

  3. ((c))

    720 J

  4. ((d))

    3.33 J

Show Answer
Answer: ((a))

840 J

17

In a clearance sale of electronic items, an item whose marked price was ₹12,225 is now sold for ₹10,758, d% is the discount percentage on the item. The value of d is: 

  1. ((a))

    11%

  2. ((b))

    14%

  3. ((c))

    12%

  4. ((d))

    13%

Show Answer
Answer: ((a))

11%

18

Which of the following is NOT a fundamental quantity in the SI system? 

  1. ((a))

    Luminous intensity

  2. ((b))

    Amount of substance

  3. ((c))

    Time

  4. ((d))

    Force

Show Answer
Answer: ((a))

Luminous intensity

19

Alloys are preferred over pure metals in electrical heating devices: 

  1. ((a))

    because the resistivity of an alloy is generally higher than its constituent metals.

  2. ((b))

    because alloys oxidise (burn) readily at high temperatures.

  3. ((c))

    because the elasticity of an alloy is higher than that of its constituent metals.

  4. ((d))

    because the resistivity of an alloy is lower than that of its constituent metals.

Show Answer
Answer: ((a))

because the resistivity of an alloy is generally higher than its constituent metals.

20

Which of the following correctly describes the direction of electric current? 

  1. ((a))

    From low potential to high potential

  2. ((b))

    Opposite to the direction of positive charge flow

  3. ((c))

    Same as the direction of electron flow

  4. ((d))

    Opposite to the direction of electron flow

Show Answer
Answer: ((a))

From low potential to high potential

21

Which of the following is an application of the 5S concept in a workshop?

  1. ((a))

    Increasing the number of safety supervisors

  2. ((b))

    Keeping tools and materials organised for easy access

  3. ((c))

    Removing safety protocols to improve efficiency

  4. ((d))

    Using extra tools without proper storage

Show Answer
Answer: ((a))

Increasing the number of safety supervisors

22

Find the value of 96.86572 × 107.

  1. ((a))

    96,86,57,200

  2. ((b))

    0.9686572

  3. ((c))

    96,86,572

  4. ((d))

    9,68,65,720

Show Answer
Answer: ((a))

96,86,57,200

23

Ampere is the SI unit of ________. 

  1. ((a))

    electric current

  2. ((b))

    electric power

  3. ((c))

    electric charge

  4. ((d))

    mass

Show Answer
Answer: ((a))

electric current

24

If a = 21 and b = 19 , find the value of a2+b2+aba3−b3\mathrm{\frac{a ^ 2 + b ^ 2 + ab}{a ^ 3 - b ^ 3}}.

  1. ((a))

    35\frac{3}{5}

  2. ((b))

    23\frac{2}{3}

  3. ((c))

    25\frac{2}{5}

  4. ((d))

    12\frac{1}{2}

Show Answer
Answer: ((a))

35\frac{3}{5}

25

What is the immediate action to take when a fire breaks out in a workplace?

  1. ((a))

    Ignore the fire and continue working

  2. ((b))

    Try to put it out using water without knowing the fire type

  3. ((c))

    Gather near the fire to observe the situation

  4. ((d))

    Raise the alarm and evacuate the area

Show Answer
Answer: ((a))

Ignore the fire and continue working

26

The floor of a rectangular hall is a square with a perimeter of 220 m. If the cost of painting the four walls at the rate of ₹10 per m2 is ₹11,000, then find the volume of the hall.

  1. ((a))

    15,125 m3

  2. ((b))

    19,200 m3

  3. ((c))

    19,520 m3

  4. ((d))

    18,250 m3

Show Answer
Answer: ((a))

15,125 m3

27

The list price of an article is ₹5,000 and a discount of 70% 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 ₹1,275?

  1. ((a))

    10%

  2. ((b))

    16%

  3. ((c))

    18%

  4. ((d))

    15%

Show Answer
Answer: ((a))

10%

28

Each of I, J, K, L, U, V and W has an exam on a different day of a week starting from Monday and ending on Sunday of the same week.J has the exam on Friday. Only two people have the exam between V and J. Only four people have the exam between L and V. U has the exam immediately after W. K does not have the exam on Monday.How many people have the exam before K and after I?

  1. ((a))

    Three

  2. ((b))

    Four

  3. ((c))

    One

  4. ((d))

    Two

Show Answer
Answer: ((a))

Three

29

The median of the data 2, 6, 4, 8, 1, 2, 5, 8, 9, 10, 12, 9, 7, 8, 3, 1, 0, 9, 2, 5 is ______.

  1. ((a))

    6

  2. ((b))

    5.5

  3. ((c))

    5

  4. ((d))

    6.5

Show Answer
Answer: ((a))

6

30

If an electric heater draws a current of 5 A when the potential difference across its terminals is 75 V, what current will it draw when the potential difference is increased to 150 V?

  1. ((a))

    10 A

  2. ((b))

    15 A

  3. ((c))

    20 A

  4. ((d))

    30 A

Show Answer
Answer: ((a))

10 A

31

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.)

11 – 121 – 221 – 171; 27 – 729 – 829 – 779

  1. ((a))

    16 – 196 – 296 – 246

  2. ((b))

    13 – 169 – 244 – 188

  3. ((c))

    25 – 625 – 725 – 675

  4. ((d))

    23 – 529 – 629 – 589

Show Answer
Answer: ((a))

16 – 196 – 296 – 246

32

The HCF of two numbers is 62, and the other two factors of the LCM of these factors are 7 and 9. Which of the options given below can be a possible value of the smaller of the two numbers?

  1. ((a))

    432

  2. ((b))

    434

  3. ((c))

    433

  4. ((d))

    431

Show Answer
Answer: ((a))

432

33

If the sum of lengths of two adjacent sides of a parallelogram is 12 cm, then the perimeter of the parallelogram is: 

  1. ((a))

    34 cm

  2. ((b))

    36 cm

  3. ((c))

    20 cm

  4. ((d))

    24 cm

Show Answer
Answer: ((a))

34 cm

34

How many base units are given in the SI system?

  1. ((a))

    9

  2. ((b))

    7

  3. ((c))

    3

  4. ((d))

    11

Show Answer
Answer: ((a))

9

35

A is thrice as good a workman as B and together they can finish a piece of work in 12 days. In how many days can A alone finish the work?

  1. ((a))

    14 days

  2. ((b))

    12 days

  3. ((c))

    16 days

  4. ((d))

    18 days

Show Answer
Answer: ((a))

14 days

36

Which of the following is NOT one of the 5S principles?

  1. ((a))

    Sustain

  2. ((b))

    Supervise

  3. ((c))

    Standardise

  4. ((d))

    Sort

Show Answer
Answer: ((a))

Sustain

37

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))

    DW – YA 

  2. ((b))

    MF – HJ

  3. ((c))

    WP – RS

  4. ((d))

    SL – NP

Show Answer
Answer: ((a))

DW – YA 

38

Which of the following is a poor conductor of heat? 

  1. ((a))

    Wool

  2. ((b))

    Steel spoon

  3. ((c))

    Copper

  4. ((d))

    Aluminium rod

Show Answer
Answer: ((a))

Wool

39

Rakesh starts a business with a capital of ₹2,50,000. He incurs a loss of 5% during the first year. However, he makes a profit of 4% on his remaining investment during the second year. Finally, he makes a profit of 20% on his new capital during the third year. Find his total profit at the end of three years.

  1. ((a))

    ₹46,400

  2. ((b))

    ₹46,500

  3. ((c))

    ₹46,700

  4. ((d))

    ₹46,600

Show Answer
Answer: ((a))

₹46,400

40

The resistances of 30 ohm, 20 ohm and 60 ohm are connected in parallel. The equivalent resistance of the combination is ________. 

  1. ((a))

    110 ohm

  2. ((b))

    0.1 ohm

  3. ((c))

    12 ohm

  4. ((d))

    10 ohm

Show Answer
Answer: ((a))

110 ohm

41

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

UT27, RQ25, NM23, ?

  1. ((a))

    IG21

  2. ((b))

    IH29

  3. ((c))

    JH19

  4. ((d))

    IH21

Show Answer
Answer: ((a))

IG21

42

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

(Left) K A T & 4 @ Y # 6 K & 2 R % 7 D 3 5 E * S (Right)

How many such symbols are there which are immediately preceded by a number and also immediately followed by a letter?

  1. ((a))

    One 

  2. ((b))

    Three

  3. ((c))

    Two

  4. ((d))

    Four

Show Answer
Answer: ((a))

One 

43

Match the following.

(A) Continuous thick lines(P) Projection lines
(B) Hidden lines(Q) Principal lines
(C) Outlines(R) Dotted lines
(D) Extension lines(S) Object lines
  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

44

Which of the following is an example of uniform motion? 

  1. ((a))

    A vehicle moving through a crowded area

  2. ((b))

    A train moving at a constant speed on a straight track

  3. ((c))

    A sprinter running a 100-metre race with varying speed

  4. ((d))

    A ball rolling down a slope

Show Answer
Answer: ((a))

A vehicle moving through a crowded area

45

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.)

24 – 48 – 108 – 36; 18 – 36 – 96 – 32

  1. ((a))

    82 – 139 – 234 – 78 

  2. ((b))

    132 – 264 – 444 – 138

  3. ((c))

    53 – 106 – 166 – 55

  4. ((d))

    48 – 96 – 156 – 52

Show Answer
Answer: ((a))

82 – 139 – 234 – 78 

46

Match the following, according to lettering and numbering (uppercase lettering) as per BIS SP: 46-2003.

Width (W)Capital letters
(A) 5(I) W
(B) 6(II) A, M, Q, V, X, Y
(C) 7(III) B, D, G, H, K, N, O, P, R, S, T, U and Z
(D) 9(IV) C, E, F, L
  1. ((a))

    A-(I), B-(III), C-(II), D-(IV)

  2. ((b))

    A-(IV), B-(III), C-(II), D-(I)

  3. ((c))

    A-(IV), B-(III), C-(I), D-(II)

  4. ((d))

    A-(IV), B-(II), C-(III), D-(I)

Show Answer
Answer: ((a))

A-(I), B-(III), C-(II), D-(IV)

47

An object of mass m is made to fall freely from a height h. As the object continues to fall, what will happen to its energy?

  1. ((a))

    The kinetic energy and potential energy will not change.

  2. ((b))

    The potential energy would decrease while the kinetic energy would increase.

  3. ((c))

    The potential energy would increase while the kinetic energy would decrease.

  4. ((d))

    The potential energy and kinetic energy will both increase. 

Show Answer
Answer: ((a))

The kinetic energy and potential energy will not change.

48

A can complete a piece of work in 18 days. B can complete it in 14 days. With the assistance of C, they completed the work in 7 days. C alone can complete it in ______________ days. 

  1. ((a))

    63

  2. ((b))

    42

  3. ((c))

    64

  4. ((d))

    36

Show Answer
Answer: ((a))

63

49

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

2M, 5O, 10R, 13T, 18W, 21Y, ?

  1. ((a))

    26B 

  2. ((b))

    26C

  3. ((c))

    24B

  4. ((d))

    26A

Show Answer
Answer: ((a))

26B 

50

The mode of 4, 6, 4, 6, 5, 7, 5, 7, 4, 6, 7, 6 is:

  1. ((a))

    4

  2. ((b))

    6

  3. ((c))

    5

  4. ((d))

    7

Show Answer
Answer: ((a))

4

51

How fast should a cat of mass 15 kg run in order to have a kinetic energy of 120 J?

  1. ((a))

    40 m/s

  2. ((b))

    4 m/s 

  3. ((c))

    16 m/s

  4. ((d))

    0.16 m/s

Show Answer
Answer: ((a))

40 m/s

52

In a certain code language, ‘WILD’ is coded as ‘8164’ and ‘DOGS’ is coded as ‘3517’. What is the code for ‘D’ in the given code language?

  1. ((a))

    4

  2. ((b))

    1

  3. ((c))

    3

  4. ((d))

    5

Show Answer
Answer: ((a))

4

53

Simran rides a distance of 60 m in one minute and then returns along the same straight path. The average velocity of her ride is _____. 

  1. ((a))

    0 m/s 

  2. ((b))

    2 m/s

  3. ((c))

    1 m/s

  4. ((d))

    60 m/s

Show Answer
Answer: ((a))

0 m/s 

54

The resistance of a metallic wire is R. If the radius of the metallic wire is reduced to half of its initial value while keeping all other parameters the same, the new resistance becomes ______.

  1. ((a))

    R4\frac{R}{4}

  2. ((b))

    R2\frac{R}{2}

  3. ((c))

    2R

  4. ((d))

    4R

Show Answer
Answer: ((a))

R4\frac{R}{4}

55

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

BSR : GQW

LOB : QMG

  1. ((a))

    RWH : WUM

  2. ((b))

    HVD : LTH

  3. ((c))

    KRW : NPZ

  4. ((d))

    QGT : TDW

Show Answer
Answer: ((a))

RWH : WUM

56

If 11.6 : x :: x : 2.9, and x > 0, then find the value of x. 

  1. ((a))

    10.9

  2. ((b))

    7.7

  3. ((c))

    5.8

  4. ((d))

    3.1

Show Answer
Answer: ((a))

10.9

57

What is the first step when encountering a system failure in a workplace?

  1. ((a))

    Report the issue and follow the emergency protocol

  2. ((b))

    Ignore the failure and continue working

  3. ((c))

    Immediately restart all systems without inspection

  4. ((d))

    Disconnect all power sources permanently

Show Answer
Answer: ((a))

Report the issue and follow the emergency protocol

58

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

87 118 149 ? 211 242

  1. ((a))

    188

  2. ((b))

    171

  3. ((c))

    180

  4. ((d))

    199

Show Answer
Answer: ((a))

188

59

Jaspreet deposited a sum of ₹12,800 at 5% rate of interest per annum, compounded annually. The total amount (in ₹) received by Jaspreet after 2 years will be: 

  1. ((a))

    13,997

  2. ((b))

    14,112

  3. ((c))

    14,512

  4. ((d))

    14,442

Show Answer
Answer: ((a))

13,997

60

Which key combination is commonly used for copying text in many text editing applications in Windows?

  1. ((a))

    Ctrl+V

  2. ((b))

    Ctrl+S

  3. ((c))

    Ctrl+C

  4. ((d))

    Tab 

Show Answer
Answer: ((a))

Ctrl+V

61

How many significant figures are there in 4.700 m? 

  1. ((a))

    3

  2. ((b))

    1

  3. ((c))

    2

  4. ((d))

    4

Show Answer
Answer: ((a))

3

62

In a business, Tushar invests in ₹10,000 and Salil invests in ₹20,000. Tushar received 10% of the profit for managing the business and the rest of the profit is divided in the ratio of their capitals. Find Tushar's share of the profit (in ₹) in a profit of ₹14,400.

  1. ((a))

    5,610

  2. ((b))

    5,760

  3. ((c))

    5,510

  4. ((d))

    5,910

Show Answer
Answer: ((a))

5,610

63

Which of the following correctly describes the role of DNS (Domain Name System) in internet architecture? 

  1. ((a))

    DNS routes data packets to their destination across the internet.

  2. ((b))

    DNS translates domain names into IP addresses to allow browsers to locate web servers.

  3. ((c))

    DNS translates IP addresses into domain names to make them easier to remember.

  4. ((d))

    DNS secures the data transmitted over the internet by encrypting it.

Show Answer
Answer: ((a))

DNS routes data packets to their destination across the internet.

64

Which of the following is an INCORRECT formula for power?

  1. ((a))

    VI

  2. ((b))

    I2R

  3. ((c))

    I2Rt

  4. ((d))

    V2/R

Show Answer
Answer: ((a))

VI

65

A boy goes to school at a speed of 5 km/hr. He returns at a speed of 14 km/hr. He takes a total of 8 hours for both going to school and returning. The distance (in km) between his home and school is:

  1. ((a))

    29.5

  2. ((b))

    27

  3. ((c))

    28.6

  4. ((d))

    31

Show Answer
Answer: ((a))

29.5

66

Which of the following features allows the user to quickly find emails received from a specific sender?

  1. ((a))

    Archive

  2. ((b))

    Draft

  3. ((c))

    Filter

  4. ((d))

    Sort 

Show Answer
Answer: ((a))

Archive

67

If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, then what will come in place of the question mark (?) in the following equation?

35 A 7 C 9 B 3 D 16 = ?

  1. ((a))

    21

  2. ((b))

    18

  3. ((c))

    16

  4. ((d))

    10

Show Answer
Answer: ((a))

21

68

What is the main function of the Transport Layer in the internet architecture?

  1. ((a))

    Reliable data transfer and error correction

  2. ((b))

    Data encapsulation

  3. ((c))

    Routing of packets

  4. ((d))

    IP addressing

Show Answer
Answer: ((a))

Reliable data transfer and error correction

69

A line in an engineering drawing is the ____________.

  1. ((a))

    one-dimensional figure, which has length but no width

  2. ((b))

    dimensionless location in space or on a drawing sheet that has no width, height, or depth

  3. ((c))

    three-dimensional object with length, breadth, and height

  4. ((d))

    closed curve where all points are the same distance from a fixed centre point

Show Answer
Answer: ((a))

one-dimensional figure, which has length but no width

70

The heat developed in a 5 ohm resistor in 2 minutes when a 2A current passes through it is ________. 

  1. ((a))

    2400 J 

  2. ((b))

    500 J 

  3. ((c))

    1000 J

  4. ((d))

    40 J

Show Answer
Answer: ((a))

2400 J 

71

The areas of three adjacent faces of a solid cuboid are 162 cm2, 144 cm2 and 50 cm2. What is the volume (in cm3) of the cuboid?

  1. ((a))

    1080 

  2. ((b))

    805

  3. ((c))

    833

  4. ((d))

    1365

Show Answer
Answer: ((a))

1080 

72

Pihu starts her car at 9 a.m. to reach her office, which is 20 km away. She covers the first 10 km in 30 minutes and reaches her office at 10 a.m. Pihu’s motion is ________. 

  1. ((a))

    retarded motion

  2. ((b))

    non-uniform motion

  3. ((c))

    accelerated motion

  4. ((d))

    uniform motion 

Show Answer
Answer: ((a))

retarded motion

73

How does turning off unused electrical devices contribute to energy conservation?

  1. ((a))

    By lowering utility bills

  2. ((b))

    By enhancing device performance

  3. ((c))

    By degrading electrical devices

  4. ((d))

    By increasing energy use

Show Answer
Answer: ((a))

By lowering utility bills

74

An electric lamp with a resistance of 35 ohms and a conductor with a resistance of 5 ohms are connected to an 8 V battery in series. Calculate the current flowing through the circuit. 

  1. ((a))

    0.2 A

  2. ((b))

    1.82 A

  3. ((c))

    40 A 

  4. ((d))

    2 A

Show Answer
Answer: ((a))

0.2 A

75

Calculate the energy possessed by an object of mass 10 kg when it is raised to a height of 5 m from the ground. Given: g = 9.8 m s-2.

  1. ((a))

    500 J 

  2. ((b))

    450 J

  3. ((c))

    490 J

  4. ((d))

    400 J

Show Answer
Answer: ((a))

500 J 

76

If sinθ+cosθsinθ−cosθ=12\mathrm{\frac{sin \theta+cos\theta}{sin\theta-cos\theta}=12} then the value of 121tan2θ−3169Cot2θ+1\frac{121tan^2\theta - 3}{169Cot^2\theta + 1} is:

  1. ((a))

    −8321-\frac{83}{21}

  2. ((b))

    −8361-\frac{83}{61}

  3. ((c))

    8361\frac{83}{61}

  4. ((d))

    8321\frac{83}{21}

Show Answer
Answer: ((a))

−8321-\frac{83}{21}

77

E, F, G, H, P, Q, and R, are sitting around a circular table facing the centre. F sits fourth to the right of E. Only R sits between F and H. H is NOT an immediate neighbour of E. Only P sits between E and G.

How many people sit between G and Q when counted from the right of G?

  1. ((a))

    Two

  2. ((b))

    Three

  3. ((c))

    Four 

  4. ((d))

    One

Show Answer
Answer: ((a))

Two

78

Find the value of x2 + y2 , given that, x = 7 + √1, y = 7 − √1.

  1. ((a))

    56

  2. ((b))

    69

  3. ((c))

    100

  4. ((d))

    98

Show Answer
Answer: ((a))

56

79

How do we find absolute error?

  1. ((a))

    Absolute error = Actual value/observed value

  2. ((b))

    Absolute error = Actual value × observed value

  3. ((c))

    Absolute error = Actual value + observed value

  4. ((d))

    Absolute error = Actual value − observed value

Show Answer
Answer: ((a))

Absolute error = Actual value/observed value

80

What is the main advantage of using solar energy over fossil fuels? 

  1. ((a))

    Greenhouse gas emission is higher when solar energy is used.

  2. ((b))

    Solar energy extraction requires high operational cost when compared to fossil fuels.

  3. ((c))

    Solar energy requires mining and extraction, whereas fossil fuels are free of cost.

  4. ((d))

    Solar energy is abundantly available and renewable in nature.

Show Answer
Answer: ((a))

Greenhouse gas emission is higher when solar energy is used.

81

Which of the following is an effective way to prevent electrical accidents in the workplace?

  1. ((a))

    Working on live wires with bare hands

  2. ((b))

    Using water to cool overheated electrical equipment

  3. ((c))

    Using insulated tools and wearing rubber gloves

  4. ((d))

    Ignoring minor electrical faults

Show Answer
Answer: ((a))

Working on live wires with bare hands

82

Which term describes the maximum amount of solar energy that a photovoltaic (PV) system can convert into electricity under standard test conditions?

  1. ((a))

    Nameplate capacity

  2. ((b))

    Rated capacity

  3. ((c))

    Effective capacity

  4. ((d))

    Peak load

Show Answer
Answer: ((a))

Nameplate capacity

83

Aditya is using two thin blankets instead of one thick blanket in winter to keep himself warm because ________.

  1. ((a))

    the friction between the two blankets produces heat

  2. ((b))

    the air trapped between the blankets is a poor conductor of heat

  3. ((c))

    the blankets are at a higher temperature than the surroundings

  4. ((d))

    two blankets are cheaper than one thick blanket

Show Answer
Answer: ((a))

the friction between the two blankets produces heat

84

In a certain code language, ‘BORE’ is coded as ‘8624’ and ‘TABS’ is coded as ‘3217’. What is the code for ‘B’ in the given code language?

  1. ((a))

    7

  2. ((b))

    1

  3. ((c))

    2

  4. ((d))

    8

Show Answer
Answer: ((a))

7

85

Two trains of lengths 155 m and 160 m are running at speeds of 74 km/hr and 52 km/hr, respectively, on parallel tracks in opposite directions. In how many seconds will they pass each other? 

  1. ((a))

    9 seconds

  2. ((b))

    14 seconds

  3. ((c))

    7 seconds

  4. ((d))

    18 seconds

Show Answer
Answer: ((a))

9 seconds

86

In winters, people wear jacket because _____. 

  1. ((a))

    it looks good

  2. ((b))

    fabric of jacket is a conductor of heat so it traps body heat

  3. ((c))

    fabric of jacket is an insulator of heat so it traps body heat

  4. ((d))

    jacket allows the heat to flow from our body to surroundings

Show Answer
Answer: ((a))

it looks good

87

Akshay gets 2% increase in his sale amount in the first year and 25% in the second year. With that his present sale is ₹1,42,800. What was his sale (in ₹) two years ago? 

  1. ((a))

    1,14,240

  2. ((b))

    92,000

  3. ((c))

    1,40,000

  4. ((d))

    1,12,000

Show Answer
Answer: ((a))

1,14,240

88

What is the scientific notation for 55,60,000 km?

  1. ((a))

    5.56 × 106 km

  2. ((b))

    5.56 × 104 km

  3. ((c))

    55.6 × 104 km

  4. ((d))

    556 × 106 km

Show Answer
Answer: ((a))

5.56 × 106 km

89

Two containers, one painted black and the other painted white, have been kept in sunlight for one hour in the afternoon. Choose the correct observation.

  1. ((a))

    There is no effect on either container.

  2. ((b))

    The white container becomes hotter than the black container.

  3. ((c))

    The black container becomes hotter than the white container.

  4. ((d))

    Both containers become equally hot.

Show Answer
Answer: ((a))

There is no effect on either container.

90

The energy possessed by an object by virtue of its motion is known as ________. 

  1. ((a))

    kinetic energy

  2. ((b))

    potential energy

  3. ((c))

    heat energy

  4. ((d))

    light energy

Show Answer
Answer: ((a))

kinetic energy

91

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.)

4 – 8 – 18 – 9

6 – 12 – 22 – 11

  1. ((a))

    8 – 16 – 26 – 13

  2. ((b))

    3 – 15 – 12 – 20

  3. ((c))

    9 – 18 – 28 – 20

  4. ((d))

    11 – 13 – 22 – 63

Show Answer
Answer: ((a))

8 – 16 – 26 – 13

92

Which of the following is the temperature range in a clinical thermometer?

  1. ((a))

    30°C to 43°C

  2. ((b))

    35°C to 42°C

  3. ((c))

    10°C to 45°C

  4. ((d))

    31°C to 44°C

Show Answer
Answer: ((a))

30°C to 43°C

93

Which of the following groups represents conductors of heat?

  1. ((a))

    Wood, paper, silver

  2. ((b))

    Paper, copper, plastic

  3. ((c))

    Aluminium, silver, copper

  4. ((d))

    Aluminium, plastic, wood

Show Answer
Answer: ((a))

Wood, paper, silver

94

Select the triad that follows the same pattern as that followed by the two triads given below. Both triads follow the same pattern.

JK - LM - NO

TU - VW - XY

  1. ((a))

    DE - FG - HI

  2. ((b))

    DE - FG - KL

  3. ((c))

    WE - DF - HI

  4. ((d))

    DE - FB - DF

Show Answer
Answer: ((a))

DE - FG - HI

95

In Engineering Drawing, principal lines are drawn to represent __________.

  1. ((a))

    interior or hidden edges

  2. ((b))

    axes of cylindrical, conical or spherical objects

  3. ((c))

    visible edges and surface boundaries of objects

  4. ((d))

    wide lines along which the prints are trimmed

Show Answer
Answer: ((a))

interior or hidden edges

96

A fruit seller had some apples. He sells 40% of the apples and now has 900 apples. How many apples did he originally have?

  1. ((a))

    1800

  2. ((b))

    2250

  3. ((c))

    1500

  4. ((d))

    1350

Show Answer
Answer: ((a))

1800

97

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))

    SA – WQ

  2. ((b))

    WE – AU

  3. ((c))

    DL – HB

  4. ((d))

    MU – QL 

Show Answer
Answer: ((a))

SA – WQ

98

Which of the following represents an item with kinetic energy? 

  1. ((a))

    An extended rubber band

  2. ((b))

    A stone in motion

  3. ((c))

    A book resting on a table

  4. ((d))

    A compressed spring

Show Answer
Answer: ((a))

An extended rubber band

99

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’.

How is M related to T if ‘M × N % P + S − T’?

  1. ((a))

    Brother's wife's brother

  2. ((b))

    Brother's wife's father

  3. ((c))

    Brother's wife's father's brother

  4. ((d))

    Brother's wife's father's father 

Show Answer
Answer: ((a))

Brother's wife's brother

100

A person saves 50% of his income. If his expenditure is ₹640, then his income (in ₹) is: 

  1. ((a))

    600

  2. ((b))

    1,320

  3. ((c))

    560

  4. ((d))

    1,280

Show Answer
Answer: ((a))

600

Part B (75 questions)

101

Which of the following care and maintenance of a marking table is INCORRECT?

  1. ((a))

    The marking table should be protected from rust.

  2. ((b))

    The surface of the marking table should not be given a thin layer of oil.

  3. ((c))

    The marking table should be protected from damage.

  4. ((d))

    After use, the marking table should be cleaned with a soft cloth.

Show Answer
Answer: ((a))

The marking table should be protected from rust.

102

What is the primary purpose of preventive maintenance?

  1. ((a))

    To increase the workload of employees

  2. ((b))

    To eliminate the need for regular inspections

  3. ((c))

    To delay repairs until breakdowns occur

  4. ((d))

    To reduce unexpected equipment failures

Show Answer
Answer: ((a))

To increase the workload of employees

103

What is the maximum total current allowed in a ring circuit as per IEE regulations?

  1. ((a))

    10 amps

  2. ((b))

    30 amps

  3. ((c))

    20 amps

  4. ((d))

    50 amps

Show Answer
Answer: ((a))

10 amps

104

In a circuit with a NTC type thermistor and a fixed resistor connected in series connected to a DC power supply, what will happen to the output voltage if there is a rise in temperature?

  1. ((a))

    The output voltage will remain constant.

  2. ((b))

    The output voltage will decrease.

  3. ((c))

    The output voltage will fluctuate depending on the resistor value.

  4. ((d))

    The output voltage will increase.

Show Answer
Answer: ((a))

The output voltage will remain constant.

105

Which electrical component is used to perform a polarity test to check whether or not the switches are connected in phase/live cable?

  1. ((a))

    Ammeter

  2. ((b))

    Multimeter

  3. ((c))

    Test lamp

  4. ((d))

    Megger

Show Answer
Answer: ((a))

Ammeter

106

A 100-mm centre-punch could have a 10-mm diameter body and a 6-mm diameter point ground to an angle of _________. 

  1. ((a))

    30°

  2. ((b))

    120°

  3. ((c))

    90°

  4. ((d))

    60°

Show Answer
Answer: ((a))

30°

107

What is the importance of following the manufacturer's guidelines for DC motor maintenance?

  1. ((a))

    Ensures safe and efficient operation

  2. ((b))

    Saves time and resources

  3. ((c))

    Increases the motor's power output

  4. ((d))

    Modifies the motor's design

Show Answer
Answer: ((a))

Ensures safe and efficient operation

108

Which of the following actions is a part of the emergency response team's responsibilities during an active emergency?

  1. ((a))

    Scheduling regular evacuation drills

  2. ((b))

    Rescuing persons in immediate danger

  3. ((c))

    Preparing reports on emergency incidents

  4. ((d))

    Conducting routine safety checks

Show Answer
Answer: ((a))

Scheduling regular evacuation drills

109

Why is a DC compound generator preferred for industrial loads?

  1. ((a))

    It has constant voltage characteristics.

  2. ((b))

    It has no losses.

  3. ((c))

    It is easier to manufacture.

  4. ((d))

    It provides better efficiency. 

Show Answer
Answer: ((a))

It has constant voltage characteristics.

110

What is the objective of testing an earthing system?

  1. ((a))

    To check the voltage levels

  2. ((b))

    To ensure the system has a low resistance path to the earth

  3. ((c))

    To measure the insulation resistance of cables

  4. ((d))

    To test the current capacity of the earthing system

Show Answer
Answer: ((a))

To check the voltage levels

111

How should the electrode resistance be measured if multiple earthing electrodes are used in parallel?

  1. ((a))

    Measure electrode resistance individually and then add it

  2. ((b))

    Use a clamp meter to measure the resistance of parallel electrodes

  3. ((c))

    Measure electrode resistance individually and then average the values

  4. ((d))

    Measure the total resistance of the combined electrodes in parallel

Show Answer
Answer: ((a))

Measure electrode resistance individually and then add it

112

Which option shows the correct answer when 27°C is converted to the kelvin scale?

  1. ((a))

    – 246 K

  2. ((b))

    300 K

  3. ((c))

    – 300 K

  4. ((d))

    246 K

Show Answer
Answer: ((a))

– 246 K

113

Read the Assertion (A) and Reason (R) carefully, and select the correct option.

Assertion (A): The earth resistance must be kept as low as possible to ensure that the earthing system is effective during fault conditions.

Reason (R): A low resistance allows fault current to flow easily into the ground, ensuring safety by preventing electrical hazards.

  1. ((a))

    Assertion (A) is correct, but Reason (R) is incorrect.

  2. ((b))

    Both Assertion (A) and Reason (R) are correct, and the reason correctly explains the assertion.

  3. ((c))

    Both Assertion (A) and Reason (R) are correct, but the reason does not correctly explain the assertion.

  4. ((d))

    Assertion (A) is incorrect, but Reason (R) is correct. 

Show Answer
Answer: ((a))

Assertion (A) is correct, but Reason (R) is incorrect.

114

Which of the following statements about a star connected three phase system is correct?

  1. ((a))

    The neutral wire has higher voltage than the phase wires.

  2. ((b))

    The neutral wire is used for grounding purposes only.

  3. ((c))

    The neutral wire carries no current in case of balanced ideal load.

  4. ((d))

    There are two neutral wires in a star connected three phase system.

Show Answer
Answer: ((a))

The neutral wire has higher voltage than the phase wires.

115

For which of the following calipers, a screw and nut are provided for opening and closing the caliper legs?

  1. ((a))

    Firm joint calipers

  2. ((b))

    Simple calipers

  3. ((c))

    Spring joint calipers

  4. ((d))

    Leg and point calipers

Show Answer
Answer: ((a))

Firm joint calipers

116

What are the two types of mica capacitors?

  1. ((a))

    Stacked foil and silvered mica capacitors

  2. ((b))

    Variable and fixed capacitors

  3. ((c))

    Electrolytic and paper capacitors

  4. ((d))

    Ceramic and film capacitors

Show Answer
Answer: ((a))

Stacked foil and silvered mica capacitors

117

The accuracy of measurement by a try square is about:

  1. ((a))

    0.002 mm per 10 mm length

  2. ((b))

    0.001 mm per 10 mm length

  3. ((c))

    0.02 mm per 10 mm length

  4. ((d))

    0.004 mm per 10 mm length

Show Answer
Answer: ((a))

0.002 mm per 10 mm length

118

Which of the following is a major risk associated with fuel spillage?

  1. ((a))

    Reduced need for ventilation

  2. ((b))

    Increased productivity

  3. ((c))

    Better lubrication for workshop floors

  4. ((d))

    Fire hazards and environmental contamination

Show Answer
Answer: ((a))

Reduced need for ventilation

119

Natural rubber is soft at high temperatures and brittle at low temperatures; hence raw rubber is heated with sulphur and other additives at a temperature range between 373 – 415 K to make it strong. This process is called ______ of rubber. 

  1. ((a))

    latex

  2. ((b))

    vulcanisation

  3. ((c))

    molding

  4. ((d))

    extrusion

Show Answer
Answer: ((a))

latex

120

In an N-channel MOSFET, the drain current ID increases as __________. 

  1. ((a))

    the source-to-drain voltage decreases

  2. ((b))

    the gate-to-source voltage decreases

  3. ((c))

    the drain-to-source voltage increases

  4. ((d))

    the gate-to-source voltage increases above the threshold voltage

Show Answer
Answer: ((a))

the source-to-drain voltage decreases

121

A three phase circuit is connected with balanced delta connected load of impedance 100 Ω. If the current in each phase is 5 A, the voltage across each load will be ______. 

  1. ((a))

    250 V

  2. ((b))

    150 V

  3. ((c))

    200 V

  4. ((d))

    500 V

Show Answer
Answer: ((a))

250 V

122

Which of the following types of resistors is preferred for high-current applications?

  1. ((a))

    Carbon composition resistor

  2. ((b))

    Wire-wound resistor

  3. ((c))

    Variable resistor

  4. ((d))

    Film resistor

Show Answer
Answer: ((a))

Carbon composition resistor

123

A statement and conclusion for pictorial drawing are given below. Determine the logical relationship between them.

Statement: Pictorial drawings are three-dimensional and provide a visual representation of an object.

Conclusion: Therefore, pictorial drawings are useful for describing the shape of a piece part or component.

  1. ((a))

    The conclusion is unrelated to the statement.

  2. ((b))

    The conclusion logically follows from the statement.

  3. ((c))

    The conclusion is partially supported by the statement.

  4. ((d))

    The conclusion does not logically follow from the statement.

Show Answer
Answer: ((a))

The conclusion is unrelated to the statement.

124

What is the primary cause of sudden insulation resistance failure in a DC generator?

  1. ((a))

    Moisture ingress or contamination

  2. ((b))

    High ambient temperature

  3. ((c))

    Excessive armature current

  4. ((d))

    Increase in rotational speed

Show Answer
Answer: ((a))

Moisture ingress or contamination

125

Transformer oil should have _______ dielectric strength and _______ viscosity. 

  1. ((a))

    low; low

  2. ((b))

    high; high

  3. ((c))

    low; high

  4. ((d))

    high; low

Show Answer
Answer: ((a))

low; low

126

Which of the following is a primary difference between a primary and a secondary electrochemical cell?

  1. ((a))

    A secondary cell produces more energy than a primary cell.

  2. ((b))

    There is no difference between primary and secondary cells.

  3. ((c))

    A primary cell cannot be recharged, while a secondary cell can be recharged.

  4. ((d))

    A primary cell can be recharged, while a secondary cell cannot be recharged.

Show Answer
Answer: ((a))

A secondary cell produces more energy than a primary cell.

127

The energy stored (W) in an inductor is given by the formula _______, where C = Capacitance, V= Voltage, I = Current, and L= inductance.

  1. ((a))

    W=LIW=LI

  2. ((b))

    W=12VIW=\frac{1}{2}VI

  3. ((c))

    W=12CV2W=\frac{1}{2}CV^2

  4. ((d))

    W=12LI2W=\frac{1}{2}LI^2

Show Answer
Answer: ((a))

W=LIW=LI

128

In the context of earthing system measurement, what does 'Earth resistance' refer to?

  1. ((a))

    The resistance between the live wire and the earth

  2. ((b))

    The ability of the ground to resist current flow

  3. ((c))

    The resistance between any two points of the ground with a distance of 1 metre

  4. ((d))

    The voltage required to activate the earthing system

Show Answer
Answer: ((a))

The resistance between the live wire and the earth

129

In a logic circuit, three SPST (Single Pole Single Throw) switches are used to implement a logic gate. The switches are connected in series. What is the output of the circuit if all switches are closed?

  1. ((a))

    1

  2. ((b))

    0

  3. ((c))

    The output will depend on the type of gate used

  4. ((d))

    Undefined

Show Answer
Answer: ((a))

1

130

Sine bars are used when a high degree of accuracy less than _________ is needed for measuring angles.

  1. ((a))

    1 degree

  2. ((b))

    30 degrees

  3. ((c))

    1 minute

  4. ((d))

    30 minutes

Show Answer
Answer: ((a))

1 degree

131

In pipe earthing, what is used to connect the earthing conductor to the pipe?

  1. ((a))

    Soldering

  2. ((b))

    Bolts and nuts

  3. ((c))

    Tape

  4. ((d))

    Welding 

Show Answer
Answer: ((a))

Soldering

132

In the case of a three-phase system with an unbalanced load, which of the following is correct?

  1. ((a))

    The sum of the phase angles of each phase is always 120°.

  2. ((b))

    The sum of the line currents is not necessarily zero.

  3. ((c))

    The line voltages are always equal.

  4. ((d))

    In an unbalanced three-phase system, the neutral current is zero.

Show Answer
Answer: ((a))

The sum of the phase angles of each phase is always 120°.

133

Which of the following is true when there is an unbalanced star connected load in a three-phase system? 

  1. ((a))

    The current in the neutral terminal is zero

  2. ((b))

    Imbalance in phase voltages.

  3. ((c))

    The magnitude of current in each phase of the load is equal.

  4. ((d))

    The power factor in each phase of the load is equal.

Show Answer
Answer: ((a))

The current in the neutral terminal is zero

134

The Insulation Resistance value for a transformer is measured in: 

  1. ((a))

    KVA

  2. ((b))

    kiloohms

  3. ((c))

    megaohms

  4. ((d))

    ohms

Show Answer
Answer: ((a))

KVA

135

Why are alternators connected in parallel?

  1. ((a))

    To improve the power factor

  2. ((b))

    To increase the output frequency

  3. ((c))

    To increase the starting torque

  4. ((d))

    To meet greater power demand of load circuit

Show Answer
Answer: ((a))

To improve the power factor

136

What is the pinch-off voltage in a FET?

  1. ((a))

    The voltage where the drain-to-source voltage causes breakdown

  2. ((b))

    The voltage at which the channel is "pinched off" and the current saturates

  3. ((c))

    The voltage at which the gate-to-source voltage is zero

  4. ((d))

    The voltage at which the drain-to-source current is maximised

Show Answer
Answer: ((a))

The voltage where the drain-to-source voltage causes breakdown

137

Match the following designations of sheets with their respective trimmed sizes in length and breadth.

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

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

  2. ((b))

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

  3. ((c))

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

  4. ((d))

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

Show Answer
Answer: ((a))

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

138

Two coils, A and B, have self-inductances of 120 μH and 300 μH, respectively. When a current of 1 A flows through coil A, it induces a flux linkage of 100 μWb turns in coil B. What is the mutual inductance between the coils?

  1. ((a))

    300 μH

  2. ((b))

    120 μH

  3. ((c))

    50 μH

  4. ((d))

    100 μH

Show Answer
Answer: ((a))

300 μH

139

Which DC motor type provides the best speed regulation under varying loads?

  1. ((a))

    Cumulative Motor

  2. ((b))

    DC Shunt Motor

  3. ((c))

    DC Series Motor

  4. ((d))

    Permanent Magnet DC Motor

Show Answer
Answer: ((a))

Cumulative Motor

140

The SI unit of 'ultimate stress' is ________.

  1. ((a))

    pascal (Pa)

  2. ((b))

    newton (N)

  3. ((c))

    joule per square meter (J/m²)

  4. ((d))

    newton per meter (N/m)

Show Answer
Answer: ((a))

pascal (Pa)

141

Which of the following types of DC motor is commonly used in electric traction applications such as trains and trams?

  1. ((a))

    DC Shunt Motor

  2. ((b))

    DC Compound Motor

  3. ((c))

    Permanent Magnet DC Motor

  4. ((d))

    DC Series Motor

Show Answer
Answer: ((a))

DC Shunt Motor

142

Which device is used to protect against electric shocks and fires caused by earth leakage currents?

  1. ((a))

    MCB

  2. ((b))

    ECB

  3. ((c))

    MCCB

  4. ((d))

    ELCB 

Show Answer
Answer: ((a))

MCB

143

Which of the following screwdrivers has cross-shaped tips that are unlikely to slip from the cruciform slots in Philips recessed head screws? 

  1. ((a))

    Ratchet screwdriver

  2. ((b))

    Cross-recess screwdriver

  3. ((c))

    Offset screwdriver

  4. ((d))

    Stumpy screwdriver 

Show Answer
Answer: ((a))

Ratchet screwdriver

144

Which type of electrolytic capacitor is generally more stable and has better performance in small sizes?

  1. ((a))

    Tantalum capacitor

  2. ((b))

    Mica capacitor

  3. ((c))

    Aluminium capacitor

  4. ((d))

    Ceramic capacitor

Show Answer
Answer: ((a))

Tantalum capacitor

145

According to Ohm’s Law, how is current related to voltage and resistance?

  1. ((a))

    It is directly proportional to voltage and inversely proportional to resistance.

  2. ((b))

    It is inversely proportional to voltage and resistance.

  3. ((c))

    It is directly proportional to voltage and resistance.

  4. ((d))

    It has no relation with voltage or resistance.

Show Answer
Answer: ((a))

It is directly proportional to voltage and inversely proportional to resistance.

146

IGBT (Insulated Gate Bipolar Transistor) has ________.

  1. ((a))

    low input impedance

  2. ((b))

    second breakdown problems

  3. ((c))

    high on-state resistance

  4. ((d))

    high input impedance

Show Answer
Answer: ((a))

low input impedance

147

What is the primary reason for conducting a vehicle road test? 

  1. ((a))

    To increase fuel efficiency

  2. ((b))

    To avoid the need for inspections

  3. ((c))

    To ensure the vehicle is functioning safely and correctly

  4. ((d))

    To test how fast the vehicle can go

Show Answer
Answer: ((a))

To increase fuel efficiency

148

The voltage regulation in percentage for transformer is given by:

  1. ((a))

    Voltage regulation =Vload−VnoloadVload×100= \mathrm{\frac{V_{load}-V_{noload}}{V_{load}}×100}

  2. ((b))

    Voltage regulation =Vnoload−VloadVload×100= \mathrm{\frac{V_{noload}-V_{load}}{V_{load}}×100}

  3. ((c))

    Voltage regulation =Vnoload−VloadVnoload×100= \mathrm{\frac{V_{noload}-V_{load}}{V_{noload}}×100}

  4. ((d))

    Voltage regulation =Vnoload−VnoloadVload×100= \mathrm{\frac{V_{noload}-V_{noload}}{V_{load}}×100}

Show Answer
Answer: ((a))

Voltage regulation =Vload−VnoloadVload×100= \mathrm{\frac{V_{load}-V_{noload}}{V_{load}}×100}

149

An angle greater than 180 degrees is called a _______.

  1. ((a))

    Obtuse angle.

  2. ((b))

    Reflex angle.

  3. ((c))

    Acute angle.

  4. ((d))

    Right angle.

Show Answer
Answer: ((a))

Obtuse angle.

150

Which of the following methods is used for synchronising a three-phase alternator?

  1. ((a))

    Kramer's Method

  2. ((b))

    Three Dark lamp method

  3. ((c))

    One Wattmeter method

  4. ((d))

    Using damper grids in pole faces

Show Answer
Answer: ((a))

Kramer's Method

151

Which of the following is a key electrical safety tip in a workshop?

  1. ((a))

    Operate machines with wet hands

  2. ((b))

    Use water to clean electrical panels

  3. ((c))

    Ensure electrical equipment is properly grounded

  4. ((d))

    Ignore frayed wires if the device is still working

Show Answer
Answer: ((a))

Operate machines with wet hands

152

What is the primary reason for the heating effect in a conductor when an electric current passes through it?

  1. ((a))

    The electric field in the conductor causes heat generation.

  2. ((b))

    The conductor absorbs heat from the surrounding environment.

  3. ((c))

    The movement of electrons causes heat generation.

  4. ((d))

    The movement of protons causes heat generation.

Show Answer
Answer: ((a))

The electric field in the conductor causes heat generation.

153

Alternators are usually rated in:

  1. ((a))

    Kilo Volt Ampere

  2. ((b))

    Kilo Watt

  3. ((c))

    Kilo Volt Ampere Reactive

  4. ((d))

    Horse Power

Show Answer
Answer: ((a))

Kilo Volt Ampere

154

Why do cars have treaded tyres?

  1. ((a))

    To increase speed

  2. ((b))

    To increase friction and grip on the road

  3. ((c))

    To decrease friction

  4. ((d))

    To reduce weight

Show Answer
Answer: ((a))

To increase speed

155

In some programs, uppercase and lowercase letters are treated as different, for example, ‘yes’ and ‘YES’ are considered different inputs. Which term correctly describes such programs?

  1. ((a))

    Case-sensitive

  2. ((b))

     Case-insensitive

  3. ((c))

    Numerical

  4. ((d))

    Alphabetical

Show Answer
Answer: ((a))

Case-sensitive

156

The correct instant of synchronising is when busbar and incoming machine voltages are of _________ magnitude and have ___________ frequency. 

  1. ((a))

    unequal, the same

  2. ((b))

    unequal, unequal

  3. ((c))

    equal, unequal

  4. ((d))

    equal, the same

Show Answer
Answer: ((a))

unequal, the same

157

Which of the following is a possible cause of an unbalanced load in a three-phase system?

  1. ((a))

    Differences in load resistance across phases

  2. ((b))

    Symmetrical load across phases

  3. ((c))

    Equal phase currents

  4. ((d))

    Balanced supply voltages

Show Answer
Answer: ((a))

Differences in load resistance across phases

158

What is the unit of measurement for earth fault loop impedance?

  1. ((a))

    Volts (V)

  2. ((b))

    Amperes (A)

  3. ((c))

    Farads (F)

  4. ((d))

    Ohms (Ω)

Show Answer
Answer: ((a))

Volts (V)

159

The RMS value of emf per phase of alternator is given by _______.

(Given: Φ = flux per pole, f = frequency of induced emf, T is the number of coils or turns per phase and Z is the number of conductors or coil sides in series/phase in an alternator)

  1. ((a))

    2.22 ΦfT

  2. ((b))

    4.44 ΦfZ

  3. ((c))

    4.44 ΦZ

  4. ((d))

    4.44 ΦfT

Show Answer
Answer: ((a))

2.22 ΦfT

160

What is the primary purpose of shielding in electrical cables?

  1. ((a))

    To prevent heat loss from the cable

  2. ((b))

    To protect the cable from external electromagnetic interference

  3. ((c))

    To increase the voltage capacity of the cable

  4. ((d))

    To increase the current-carrying capacity of the cable

Show Answer
Answer: ((a))

To prevent heat loss from the cable

161

While performing short circuit test on a transformer to determine its parameter, instruments are placed on the:

  1. ((a))

    high voltage side, while the low voltage side is open circuit

  2. ((b))

    high voltage side, while the low voltage side is short circuit

  3. ((c))

    low voltage side, while the high voltage side is short circuit

  4. ((d))

    low voltage side, while the high voltage side is open circuit

Show Answer
Answer: ((a))

high voltage side, while the low voltage side is open circuit

162

Which of the following conversions are correct?

  1. ((a))

    1 L = 1000 dm3 and 1 mL = 1000 cm3

  2. ((b))

    1000 L = 1 dm3 and 1 mL = 1000 cm3

  3. ((c))

    1000 L = 1 dm3 and 1000 mL = 1 cm3

  4. ((d))

    1 L = 1 dm3 and 1 mL = 1 cm3

Show Answer
Answer: ((a))

1 L = 1000 dm3 and 1 mL = 1000 cm3

163

What should be the position of the ‘OFF’ marking on a fireman’s switch?

  1. ((a))

    In the centre

  2. ((b))

    At the top

  3. ((c))

    On the side

  4. ((d))

    At the bottom

Show Answer
Answer: ((a))

In the centre

164

What is the primary goal of the 5S concept?

  1. ((a))

    To eliminate the need for maintenance

  2. ((b))

    To replace traditional safety measures

  3. ((c))

    To improve workplace organisation and efficiency

  4. ((d))

    To increase the number of safety regulations

Show Answer
Answer: ((a))

To eliminate the need for maintenance

165

Which of the following statements is/are true about Non-Functional Dimensions (NF) in engineering drawing?

Statement 1: Non-functional Dimensions are shown without limits, as they do not affect the functionality of the component or space.

Statement 2: Non-Functional Dimensions are typically used for reference purposes only, and do not impact the assembly or performance of the component or space.

  1. ((a))

    Neither statement is true

  2. ((b))

    Both statements are true

  3. ((c))

    Only statement 2 is true

  4. ((d))

    Only statement 1 is true

Show Answer
Answer: ((a))

Neither statement is true

166

In a transformer, insulation resistance test is carried out to measure:

  1. ((a))

    the inductance between different parts of the transformer

  2. ((b))

    the resistance of the insulation between windings and core

  3. ((c))

    frequency

  4. ((d))

    magnetic flux

Show Answer
Answer: ((a))

the inductance between different parts of the transformer

167

The primary difference between a FET and a BJT is that _________.

  1. ((a))

    FETs are current-controlled devices, while BJTs are voltage-controlled devices

  2. ((b))

    FETs have a lower input impedance than BJTs

  3. ((c))

    FETs are voltage-controlled devices, while BJTs are current-controlled devices

  4. ((d))

    BJTs are more sensitive to temperature than FETs

Show Answer
Answer: ((a))

FETs are current-controlled devices, while BJTs are voltage-controlled devices

168

In crane and hoist applications, why is a DC series motor preferred over a DC shunt motor?

  1. ((a))

    It provides a high starting torque, which is required for lifting loads.

  2. ((b))

    It requires minimal maintenance compared to other motors.

  3. ((c))

    It maintains constant speed regardless of load variations.

  4. ((d))

    It consumes less power at no load.

Show Answer
Answer: ((a))

It provides a high starting torque, which is required for lifting loads.

169

The region of operation in a FET where the drain current is independent of the drain voltage and only depends on the gate-to-source voltage is called the ____________.

  1. ((a))

    ohmic region

  2. ((b))

    cutoff region

  3. ((c))

    saturation region

  4. ((d))

    active region

Show Answer
Answer: ((a))

ohmic region

170

Which of the following is INCORRECT about line standard?

  1. ((a))

    Quick measurements over a wide range

  2. ((b))

    More accurate due to line thickness

  3. ((c))

    Used to measure the distance between two engraved lines

  4. ((d))

    Subject to parallax error

Show Answer
Answer: ((a))

Quick measurements over a wide range

171

What is the purpose of measuring the electrode resistance during the installation of an earthing system?

  1. ((a))

    To measure the insulation resistance of the system

  2. ((b))

    To ensure proper grounding of electrical equipment

  3. ((c))

    To determine the electrical load capacity of the system

  4. ((d))

    To ensure the earthing system has low impedance for fault current dissipation

Show Answer
Answer: ((a))

To measure the insulation resistance of the system

172

A rectangular floor measuring 10 m × 8 m is to be tiled. If each tile covers 0.25 m², how many tiles are needed?

  1. ((a))

    300

  2. ((b))

    200

  3. ((c))

    320

  4. ((d))

    250

Show Answer
Answer: ((a))

300

173

Connection of voltage transformer and current transformer across line are _______, respectively.

  1. ((a))

    parallel and series

  2. ((b))

    parallel and parallel

  3. ((c))

    series and series

  4. ((d))

    series and parallel

Show Answer
Answer: ((a))

parallel and series

174

Which component in an MCB is responsible for detecting a short circuit?

  1. ((a))

    Handle

  2. ((b))

    Solenoid

  3. ((c))

    Bimetallic strip

  4. ((d))

    Arc chute

Show Answer
Answer: ((a))

Handle

175

_________________ recommend(s) 20 mm wide margins for sheet sizes AO and A1 in engineering drawings.

  1. ((a))

    Geographic coordinate systems

  2. ((b))

    Custom grids

  3. ((c))

    Grid reference system

  4. ((d))

    Borders and frames: SP: 46 (2003)

Show Answer
Answer: ((a))

Geographic coordinate systems

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