Official Paper

RRB ALP Wireman 23 Jan 2019 Official Paper (Shift 3) (Previous Year Paper)

175 questions · 150 minutes · with answers · free

Attempt as Timed Mock Test

Part A (100 questions)

1

Name the scientist who discovered bacteria ?

  1. ((a))

    Robert Koch

  2. ((b))

    James Chadwick

  3. ((c))

    Eugen Goldstein

  4. ((d))

    A V Leeuwenhoek

Show Answer
Answer: ((a))

Robert Koch

2

If a body has a specific gravity of less than 1, then it will float in/on ___________.

  1. ((a))

    air

  2. ((b))

    water

  3. ((c))

    liquids

  4. ((d))

    mercury

Show Answer
Answer: ((a))

air

3

Which of the following options does not have an SI base unit?

  1. ((a))

    Amount of substance

  2. ((b))

    Frequency

  3. ((c))

    Luminous intensity

  4. ((d))

    Electric current

Show Answer
Answer: ((a))

Amount of substance

4

How many medals did India win in Rio Olympics, 2016?

  1. ((a))

    3

  2. ((b))

    4

  3. ((c))

    2

  4. ((d))

    5

Show Answer
Answer: ((a))

3

5

It is mainly due to the gravitational effect of the __________ on the rotating earth that the level of water in the sea rises and falls.

  1. ((a))

    Venus

  2. ((b))

    Mercury

  3. ((c))

    Moon

  4. ((d))

    Sun

Show Answer
Answer: ((a))

Venus

6

Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V battery. Find the current in the 6Ω resistor.

  1. ((a))

    3.5 A

  2. ((b))
    1. 5 A
  3. ((c))

    0.5 A

  4. ((d))

    2.5 A

Show Answer
Answer: ((a))

3.5 A

7

Substances that are broken down by biological processes are said to be _________.

  1. ((a))

    reusable

  2. ((b))

    non-biodegradabl

  3. ((c))

    non-reusable

  4. ((d))

    biodegradable

Show Answer
Answer: ((a))

reusable

8

A software program that has been developed to harm other computers is called a/an _________.

  1. ((a))

    server

  2. ((b))

    LAN

  3. ((c))

    malware

  4. ((d))

    operating system

Show Answer
Answer: ((a))

server

9

Kuchipudi has its roots in which Indian State?

  1. ((a))

    Arunachal Pradesh

  2. ((b))

    Kerala

  3. ((c))

    Andhra Pradesh

  4. ((d))

    Himachal Pradesh

Show Answer
Answer: ((a))

Arunachal Pradesh

10

Which Indian cricketer received the Padma Bhushan in 2018?

  1. ((a))

    MS Dhoni

  2. ((b))

    Virat Kohli

  3. ((c))

    Sachin Tendulkar

  4. ((d))

    Saurav Ganguly

Show Answer
Answer: ((a))

MS Dhoni

11

JPEG stands for __________.

  1. ((a))

    Joint Program Experts Group

  2. ((b))

    Joint Program Executing Group

  3. ((c))

    Joint Photographic Experts Group

  4. ((d))

    Joint Program Experimental Group.

Show Answer
Answer: ((a))

Joint Program Experts Group

12

Two resistors, one of 12 Ω and the other of 24 Ω are connected in parallel. This combination is connected in series with a 22 Ω resistor and a 12 V battery. The current in the 12 Ω resistor is __________.

  1. ((a))

    (8/15) A

  2. ((b))

    (2/15) A

  3. ((c))

    (6/15) A

  4. ((d))

    (4/15) A

Show Answer
Answer: ((a))

(8/15) A

13

RK Narayan is famous for his book ___________.

  1. ((a))

    The Room on the Roof

  2. ((b))

    Two Livers

  3. ((c))

    Malgudi Days

  4. ((d))

    A suitable Boy

Show Answer
Answer: ((a))

The Room on the Roof

14

_________ protection must be worn whenever noise levels exceed the noise exposure standard.

  1. ((a))

    Hearing

  2. ((b))

    Head

  3. ((c))

    Eye

  4. ((d))

    Foot

Show Answer
Answer: ((a))

Hearing

15

A wire of length 1 and radius r has a resistance R. The resistance of another wire made of the same material but having half its length and half its radius will be.

  1. ((a))

    4R

  2. ((b))

    R/2

  3. ((c))

    2R

  4. ((d))

    R

Show Answer
Answer: ((a))

4R

16

Safety boots or shoes must be worn in designated areas to protect your _______  from falling objects.

  1. ((a))

    eye

  2. ((b))

    ear

  3. ((c))

    head

  4. ((d))

    feet

Show Answer
Answer: ((a))

eye

17

A cylindrical wire of length L and radius r has a resistance of R. The resistance of another wire of the same material but thrice its length and one-third its radius will be __________.

  1. ((a))

    27R

  2. ((b))

    9R

  3. ((c))

    R

  4. ((d))

    3R

Show Answer
Answer: ((a))

27R

18

If a body is NOT homogeneous, then its density is a function of its ___________.

  1. ((a))

    pressure

  2. ((b))

    acceleration

  3. ((c))

    position

  4. ((d))

    velocity

Show Answer
Answer: ((a))

pressure

19

Two resistors of 10Ω and 20 Ω area connected in series and this combination is connected across a 30 V supply voltage. Find the voltage across the 10 Ω resistor.

  1. ((a))

    20 V

  2. ((b))

    10 V

  3. ((c))

    5 V

  4. ((d))

    15 V

Show Answer
Answer: ((a))

20 V

20

Which one of these is a harvest festival? 

  1. ((a))

    Teej

  2. ((b))

    Janmashtami

  3. ((c))

    Deepawali

  4. ((d))

    Onam

Show Answer
Answer: ((a))

Teej

21

86°F is equal to __________

  1. ((a))

    20°C

  2. ((b))

    30°C

  3. ((c))

    34°C

  4. ((d))

    10°C

Show Answer
Answer: ((a))

20°C

22

Where is the Headquarters of UNESCO located?

  1. ((a))

    New York City

  2. ((b))

    Geneva

  3. ((c))

    Paris

  4. ((d))

    Washington DC

Show Answer
Answer: ((a))

New York City

23

Name of the painter of famous painting, ‘Mahishasura’.

  1. ((a))

    MF Hussain

  2. ((b))

    Amrita Sher-Gil

  3. ((c))

    Raja Ravi Verma

  4. ((d))

    Tyeb Mehta

Show Answer
Answer: ((a))

MF Hussain

24

What is the work that needs to be done to increase the speed of a 1 kg ball from 2 m/s to 4 m/s?

  1. ((a))

    8 J

  2. ((b))

    10 J

  3. ((c))

    6 J

  4. ((d))

    12 J

Show Answer
Answer: ((a))

8 J

25

The Ajanta Caves in Maharashtra feature paintings and sculptures that depict __________ tales.

  1. ((a))

    Arabic

  2. ((b))

    Islamic

  3. ((c))

    Buddhist

  4. ((d))

    Maratha

Show Answer
Answer: ((a))

Arabic

26

The volume of a given amount of water ________ between 0°C to 4°C.

  1. ((a))

    is zero

  2. ((b))

    decreases

  3. ((c))

    remains constant

  4. ((d))

    increases

Show Answer
Answer: ((a))

is zero

27

Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V  bettery. Find the power supplied by the battery.

  1. ((a))

    10 W

  2. ((b))

    18 W

  3. ((c))

    16 W

  4. ((d))

    14 W

Show Answer
Answer: ((a))

10 W

28

An object weighs X units on the earth. If we take the same object to the moon, its weight there will be ________.

  1. ((a))

    zero

  2. ((b))

    less than X

  3. ((c))

    equal to X

  4. ((d))

    more than X

Show Answer
Answer: ((a))

zero

29

A body starts from rest. Its displacement is proportional to _________ when its acceleration is constant.

  1. ((a))

    time squared

  2. ((b))

    velocity

  3. ((c))

    work

  4. ((d))

    time

Show Answer
Answer: ((a))

time squared

30

A source of voltage V maintains a current i in a circuit. The energy supplied to the circuit by the source in time t is __________.

  1. ((a))

    Vit

  2. ((b))

    1/Vit

  3. ((c))

    Vi/t

  4. ((d))

    V/it

Show Answer
Answer: ((a))

Vit

31

Who was the first governor of the Reserve Bank of India?

  1. ((a))

    Sir James Braid Taylor

  2. ((b))

    KR Puri

  3. ((c))

    HVR Iyengar

  4. ((d))

    Sir Osborne A Smith

Show Answer
Answer: ((a))

Sir James Braid Taylor

32

A car covers 400 m in 20 seconds. Find the average speed (in km/hr) of the car. 

  1. ((a))

    72

  2. ((b))

    124

  3. ((c))

    108

  4. ((d))

    36

Show Answer
Answer: ((a))

72

33

If sin θ = 15/17, then cot θ = ? 

  1. ((a))

    815\frac{8}{{15}}

  2. ((b))

    817\frac{8}{{17}}

  3. ((c))

    158\frac{{15}}{8}

  4. ((d))

    1715\frac{{17}}{{15}}

Show Answer
Answer: ((a))

815\frac{8}{{15}}

34

In an examination, the highest score and the lowest score are different by 55 and the higher one was 9/4 times the lower one. Find the lowest score.

  1. ((a))

    40  

  2. ((b))

    36

  3. ((c))

    44

  4. ((d))

    48

Show Answer
Answer: ((a))

40  

35

A number is as much greater than 50 as it is lesser than 84. What is the number?

  1. ((a))

    65

  2. ((b))

    66

  3. ((c))

    68

  4. ((d))

    67

Show Answer
Answer: ((a))

65

36

If x=125×30×6x = \sqrt {125} \times \sqrt {30} \times \sqrt 6  ,  then x is equal to:

  1. ((a))

    175

  2. ((b))

    125

  3. ((c))

    136

  4. ((d))

    150

Show Answer
Answer: ((a))

175

37

A got Rs. 80 as his share of profit where the total profit was Rs. 240 and the ratio of profit distribution between A and B was x : 2. What is the value of x? 

  1. ((a))

    1

  2. ((b))

    4

  3. ((c))

    2

  4. ((d))

    5

Show Answer
Answer: ((a))

1

38

What is the median of 8, 5, 7, 9, 11, 6, 10?

  1. ((a))

    9

  2. ((b))

    8

  3. ((c))

    10

  4. ((d))

    7

Show Answer
Answer: ((a))

9

39

If 5050 × 0.5x = 25250, then 2505 ÷ x2 = ?

  1. ((a))

    0.2505

  2. ((b))

    25.05

  3. ((c))

    2.505

  4. ((d))

    250.5

Show Answer
Answer: ((a))

0.2505

40

An article of marked price Rs. 12000 was sold. Had a discount of 15% been offered, a profit of 2% would have been made. What was the cost price?

  1. ((a))

    Rs. 10,200

  2. ((b))

    Rs. 10,000

  3. ((c))

    Rs. 11,000

  4. ((d))

    Rs. 10,800

Show Answer
Answer: ((a))

Rs. 10,200

41

A sum of Rs. 2,000 was spent in buying a pair of trousers. The sum spent was 2/5th of the total money Shashi had with her. How much was the total money she had?

  1. ((a))

    Rs. 4,000

  2. ((b))

    Rs. 4, 250 

  3. ((c))

    Rs. 4, 750

  4. ((d))

    Rs. 5,000 

Show Answer
Answer: ((a))

Rs. 4,000

42

A machine was bought for Rs. 1,500 and a repairing charge of Rs. 100 was paid afterwards. At what price should it be sold to gain a profit of 25%?

  1. ((a))

    Rs. 2,040

  2. ((b))

    Rs. 1,960

  3. ((c))

    Rs. 2,000

  4. ((d))

    Rs. 1, 920

Show Answer
Answer: ((a))

Rs. 2,040

43

In angular measurement, one radian is equivalent to ________ degree (approximately).

  1. ((a))

    65.27

  2. ((b))

    57.27

  3. ((c))

    90

  4. ((d))

    180

Show Answer
Answer: ((a))

65.27

44

A and B can do a work in 15 days. B and C can do the work in 20 days and A and C can do the work in 10 days. In how many days will they together completed the work?

  1. ((a))

    10.67 days

  2. ((b))

    10.91 days

  3. ((c))

    10.71 days

  4. ((d))

    9.23 days

Show Answer
Answer: ((a))

10.67 days

45

Pipes A and B can fill a tank in 12 minutes and 16 minutes respectively. Both A and B are opened for 4 minutes and then A is closed. How much extra time will B take to fill the tank completely?

  1. ((a))

    203\frac{{20}}{3} minutes

  2. ((b))

    7 minutes

  3. ((c))

    214\frac{{21}}{4} minutes

  4. ((d))

    6 minutes

Show Answer
Answer: ((a))

203\frac{{20}}{3} minutes

46

A can do 2/5 of a work in 10 days. B can do ½ of the some work in 10 days. They worked together for 5 days and then A left. In how many days will B finish the remaining work?

  1. ((a))

    8

  2. ((b))

    10

  3. ((c))

    11

  4. ((d))

    9

Show Answer
Answer: ((a))

8

47

Reflection of point (-2, -6) on the Y-axis is:

  1. ((a))

    (2, 6)

  2. ((b))

    (-6, -2)

  3. ((c))

    (-2, 6)

  4. ((d))

    (2, -6)

Show Answer
Answer: ((a))

(2, 6)

48

The pie chart shows the breakup in percentage of the various expenses of a Company. Study the diagram and answer the following question. 

What is the interest expense if total expenses is Rs. 25000.

  1. ((a))

    Rs. 2, 500

  2. ((b))

    Rs. 1, 800

  3. ((c))

    Rs. 9, 000

  4. ((d))

    Rs. 5, 000

Show Answer
Answer: ((a))

Rs. 2, 500

49

A motorcycle travelled 1000 m at 36 km/hr. Find the time (in seconds) taken by the motorcycle to cover this distance.

  1. ((a))

    300

  2. ((b))

    100

  3. ((c))

    400

  4. ((d))

    200

Show Answer
Answer: ((a))

300

50

A 4-digit number 1xy7 is divisible by 11. What is the value of x - y?

  1. ((a))

    -8

  2. ((b))

    -2

  3. ((c))

    -4

  4. ((d))

    -6

Show Answer
Answer: ((a))

-8

51

Tap M and N can together fill a cistern in 48/13 minutes. N alone can fill it in 6 minutes. How much time will M alone take to fill the cistern?

  1. ((a))

    9.6 minutes

  2. ((b))

    9 minutes

  3. ((c))

    9.4 minutes

  4. ((d))

    8.6 minutes

Show Answer
Answer: ((a))

9.6 minutes

52

What is the curved surface area of a hemisphere whose radius is 7 cm? (take π = 22/7)

  1. ((a))

    616 cm2

  2. ((b))

    154 cm2

  3. ((c))

    308 cm2

  4. ((d))

    924 cm2

Show Answer
Answer: ((a))

616 cm2

53

An airplane flies at the speed of 50 m/s. How much distance (in km) will it cover in a flight of 5 hours?

  1. ((a))

    895

  2. ((b))

    850

  3. ((c))

    880

  4. ((d))

    900

Show Answer
Answer: ((a))

895

54

What is the distance between the points (4, 3) and (3, -2)?

  1. ((a))

    26\sqrt {26}

  2. ((b))

    24\sqrt {24}

  3. ((c))

    6

  4. ((d))

    5

Show Answer
Answer: ((a))

26\sqrt {26}

55

sec 45° - tan 60° = ? 

  1. ((a))

    −3+2 - \sqrt 3 + \sqrt 2

  2. ((b))

    −3−2 - \sqrt 3 - \sqrt 2

  3. ((c))

    32\frac{{\sqrt 3 }}{2}

  4. ((d))

    3+2\sqrt 3 + \sqrt 2

Show Answer
Answer: ((a))

−3+2 - \sqrt 3 + \sqrt 2

56

What is the least number which when doubled is perfectly divisible by 7, 12 and 15? 

  1. ((a))

    420

  2. ((b))

    210

  3. ((c))

    214

  4. ((d))

    220

Show Answer
Answer: ((a))

420

57

A sum of Rs. 10,000 amounts to Rs. 11, 449 in 2 years, when the interest is compounded annually. The interest rate percent per annum is:

  1. ((a))

    6%

  2. ((b))

    1%

  3. ((c))

    7%

  4. ((d))

    8%

Show Answer
Answer: ((a))

6%

58

The ages of X and Y are in the ratio 4 : 7. Three years earlier, the ratio of their ages was 1 : 2. What is the difference between their current ages (Y - X)?

  1. ((a))

    3

  2. ((b))

    6

  3. ((c))

    9

  4. ((d))

    7.5

Show Answer
Answer: ((a))

3

59

What is 80% of 50% of 90?

  1. ((a))

    30

  2. ((b))

    34

  3. ((c))

    32

  4. ((d))

    36

Show Answer
Answer: ((a))

30

60

Choose the figure that is different from the rest.

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

61

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

1.14, 1.28, 1.42, ?, 1.70, 1.84

  1. ((a))

    1.56

  2. ((b))

    1.54

  3. ((c))

    1.68

  4. ((d))

    1.62

Show Answer
Answer: ((a))

1.56

62

Two planes E and F start flying from the same point. E flies 7 km west, then turns to its left and flies 15 km. Meanwhile F flies 11 km east and turns right and flies 15 km. Where is F with respect to E?

  1. ((a))

    F is 18 km west of E

  2. ((b))

    F is 4 km east of E

  3. ((c))

    F is 18 km east of E

  4. ((d))

    F is 4 km west of E

Show Answer
Answer: ((a))

F is 18 km west of E

63

Given below are some letters, that each of these letters has a corresponding number. Select the combination of numbers from the option so that the jumbled letters arranged accordingly will form a meaningful English word.

H T R U O A

1 2 3 4 5 6

  1. ((a))

    6, 4, 2, 1, 5, 3

  2. ((b))

    3, 4, 5, 2, 1, 6

  3. ((c))

    1, 6, 2, 4, 5, 3

  4. ((d))

    2, 1, 5, 3, 4, 6

Show Answer
Answer: ((a))

6, 4, 2, 1, 5, 3

64

I, J, K and L are sitting in a row. L and I are sitting next to each other and I and K are the ends. Who is sitting next to J?

  1. ((a))

    Only K 

  2. ((b))

    L and I

  3. ((c))

    K and L

  4. ((d))

    Only L

Show Answer
Answer: ((a))

Only K 

65

Select the option that is related to the third term in the same way as the second term is related to the first term.

Tall : Short ∷ Glad : ?

  1. ((a))

    Sad

  2. ((b))

    Happy

  3. ((c))

    Emotion

  4. ((d))

    Smile

Show Answer
Answer: ((a))

Sad

66

If, ‘+’ represents ‘×’, ‘-‘ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘-‘ then find the value of the following expression.

9 × 3 + 6 ÷ 2 = ?

  1. ((a))

    20

  2. ((b))

    10

  3. ((c))

    12

  4. ((d))

    16

Show Answer
Answer: ((a))

20

67

If G + H means G is daughter of H, G- H means G is sister H and G * H means G is husband of H, which of the following shows that I is the daughter of H?

  1. ((a))

    I – J + F * H

  2. ((b))

    I + J - F * H

  3. ((c))

    I – J * F + H

  4. ((d))

    I * J - F + H

Show Answer
Answer: ((a))

I – J + F * H

68

Which of the following Venn diagrams best represents the relationship between Indians, doctors and women?

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

69

Given below are two statement, followed by two conclusion, I and II. You have to consider the statement to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow(s) from the given statements.

Statement 1: No quadrilaterals are polygons.

Statement 2: All polygons are rhombuses.

Conclusion I: Some rhombuses are quadrilaterals.

Conclusion II: Some rhombuses are polygons.

  1. ((a))

    Neither I nor II follows

  2. ((b))

    Only conclusion II follows

  3. ((c))

    Only conclusion I follows

  4. ((d))

    Both I and II follow

Show Answer
Answer: ((a))

Neither I nor II follows

70

Which two signs should be interchanged to make the given equation correct?

9 ÷ 3 + 8 × 2 – 15 = 2

  1. ((a))

    × and -

  2. ((b))

    ÷ and -

  3. ((c))
    • and ×
  4. ((d))
    • and -
Show Answer
Answer: ((a))

× and -

71

What is the minimum number of lines required to make the given image?

  1. ((a))

    13

  2. ((b))

    12

  3. ((c))

    10

  4. ((d))

    9

Show Answer
Answer: ((a))

13

72

A series is give, with one term missing. Choose the correct alternative from the given ones that will complete the series.

OOOOOX, OOOOXX, OOOXXX, OOXXXX, ?

  1. ((a))

    XXXXXX

  2. ((b))

    OOXXXXX

  3. ((c))

    OOXXXX

  4. ((d))

    OXXXXX

Show Answer
Answer: ((a))

XXXXXX

73

If C $ D means C is daughter of D, C & D means C is mother of D and C % D means C is son of D, then what does W $ X & Y % Z mean?

  1. ((a))

    Z is wife of W

  2. ((b))

    Z is mother of W

  3. ((c))

    Z is father of W

  4. ((d))

    Z is daughter of W

Show Answer
Answer: ((a))

Z is wife of W

74

Given below is a question, followed by two arguments, I and II. You have to decide which of the given arguments, if any, is a strong argument, with respect to the question.

Question: Should advertisements be banned on television?

Argument I: Yes, advertisements are immoral.

Argument II: No, advertisements bring in revenue which helps reduce cost for viewers.

  1. ((a))

    Only argument II is strong.

  2. ((b))

    Only argument I is strong.

  3. ((c))

    Neither I nor II is strong.

  4. ((d))

    Both I and II are strong.

Show Answer
Answer: ((a))

Only argument II is strong.

75

Select the option that is related to the third number in the same way as the second number is related to the first number.

-9/11 : 11/9 ∷ 13/2 : ?

  1. ((a))

    3/7

  2. ((b))

    2/13

  3. ((c))

    -2/13

  4. ((d))

    -7/3

Show Answer
Answer: ((a))

3/7

76

Given below is a statement followed by two assumption numbered I and II. You have to decide which of the assumptions is/are implicit in the statement.

Statement: The human body produces Vitamin D when exposed to sunlight.

Assumption I: The human body will have Vitamin D even if it is not consumed via food.

Assumption II: A large portion of the global population suffers from Vitamin D deficiency.

  1. ((a))

    Both I and II are implicit

  2. ((b))

    Only assumption II is implicit

  3. ((c))

    Neither I nor II is implicit

  4. ((d))

    Only assumption I is implicit

Show Answer
Answer: ((a))

Both I and II are implicit

77

A salesperson starts from his office and drives 2 km east, then turns north and drives 7 km, then turns to his right and drives 6 km, then turns south and drives 7 km. Where is he now with respect to his starting position?

  1. ((a))

    8 km east

  2. ((b))

    4 km west

  3. ((c))

    4 km east

  4. ((d))

    8 km west

Show Answer
Answer: ((a))

8 km east

78

Unscramble the letters in the words given below and find the odd word out.

  1. ((a))

    FLOW

  2. ((b))

    ILNO

  3. ((c))

    ERTIG

  4. ((d))

    WCO

Show Answer
Answer: ((a))

FLOW

79

Find the odd group of letters from the given alternatives.

  1. ((a))

    EFG

  2. ((b))

    PQR

  3. ((c))

    VWX

  4. ((d))

    HJL

Show Answer
Answer: ((a))

EFG

80

Choose the figure that is different from the rest.

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

81

In a code language, 295 means ‘water is liquid’, 549 means ‘oil is liquid’ and 824 means ‘oil on water.’ Find the code for ‘on’.

  1. ((a))

    4

  2. ((b))

    2

  3. ((c))

    8

  4. ((d))

    5

Show Answer
Answer: ((a))

4

82

In the following figure, square represents Chinese, triangle represents dancers, circle represents male and rectangle represents architects. Which set of letters represents dancers who are male?

  1. ((a))

    DEIG

  2. ((b))

    DEF

  3. ((c))

    IGH

  4. ((d))

    GEF

Show Answer
Answer: ((a))

DEIG

83

The abbreviation AC in an engineering drawing stands for __________.

  1. ((a))

    Across Corners

  2. ((b))

    Aerial Cut

  3. ((c))

    Attached Circle

  4. ((d))

    Air Conditioning

Show Answer
Answer: ((a))

Across Corners

84

Greater the value of _______ of a material, the more rapidly it will conduct heat. 

  1. ((a))

    melting point

  2. ((b))

    latent heat

  3. ((c))

    regelation

  4. ((d))

    thermal conductivity

Show Answer
Answer: ((a))

melting point

85

The effort applied to move a load is 15 units and the mechanical advantage is observed to be 3. Find the load. 

  1. ((a))

    5 units

  2. ((b))

    3 units

  3. ((c))

    15 units

  4. ((d))

    45 units

Show Answer
Answer: ((a))

5 units

86

What is the unit's digit in 366 × 641 × 753 

  1. ((a))

    8

  2. ((b))

    3

  3. ((c))

    6

  4. ((d))

    7

Show Answer
Answer: ((a))

8

87

If the width of a standard engineering drawing sheet is 841 mm, then its length would be ________ mm. 

  1. ((a))

    1189

  2. ((b))

    1250

  3. ((c))

    1000

  4. ((d))

    1216

Show Answer
Answer: ((a))

1189

88

A 200 g block of iron was heated from 30°C to 60°C. How much heat was transferred to the block (specific heat of iron is 450 Jkg-1K-1)?

  1. ((a))

    6000 J

  2. ((b))

    27 J

  3. ((c))

    2700 J

  4. ((d))

    270 J

Show Answer
Answer: ((a))

6000 J

89

If a machine overcomes a load 'L' and the distance travelled by the load is 'Ld', the work done by the load will be __________.

  1. ((a))

    L × Ld

  2. ((b))

    LLd\rm \frac{L}{Ld}

  3. ((c))

    LdL\rm \frac{Ld}{L}

  4. ((d))

    1L×Ld\rm \frac{1}{L \times Ld}

Show Answer
Answer: ((a))

L × Ld

90

A brass rod (thermal conductivity 109 J/s m K) has an area of cross section 0.04 m2 and length 20 cm. If the two end of the rod are maintained at a temperature difference of 200°C, the rate of heat flow through the rod is ________.

  1. ((a))

    3.42 kJ/s

  2. ((b))

    2.32 kJ/s

  3. ((c))

    4.36 kJ/s

  4. ((d))

    5.80 kJ/s

Show Answer
Answer: ((a))

3.42 kJ/s

91

The effort in a class 1 lever is in __________ direction(s).

  1. ((a))

    three

  2. ((b))

    multiple

  3. ((c))

    two

  4. ((d))

    one

Show Answer
Answer: ((a))

three

92

The velocity ratio of a simple machine is the ratio of distance traveled by the ________ to the distance traveled by the ________ in the machine.

  1. ((a))

    load; load

  2. ((b))

    effort; load

  3. ((c))

    load; effort

  4. ((d))

    effort; effort

Show Answer
Answer: ((a))

load; load

93

If straight lines are drawn from various points on the contour of an object to meet a plane, the figure obtained on the plane is called the _______ of the object. 

  1. ((a))

    development

  2. ((b))

    dimensioning

  3. ((c))

    projection

  4. ((d))

    animation

Show Answer
Answer: ((a))

development

94

A _______ is a theoretical exact plane, axis or point location that GD & T or dimensional tolerances are referenced to. 

  1. ((a))

    flange

  2. ((b))

    frame

  3. ((c))

    section

  4. ((d))

    datum

Show Answer
Answer: ((a))

flange

95

Molar specific heat capacity of a substance is _________.

  1. ((a))

    (1μ)(ΔQΔT)\left(\frac{1}{\mu}\right)\left( \frac{\Delta Q}{\Delta T} \right)

  2. ((b))

    μ(ΔQΔT)\mu \left( \frac{\Delta Q}{\Delta T} \right)

  3. ((c))

    (1μ)(ΔTΔQ)\left(\frac{1}{\mu}\right)\left( \frac{\Delta T}{\Delta Q} \right)

  4. ((d))

    μ(ΔTΔQ)\mu \left( \frac{\Delta T}{\Delta Q} \right)

Show Answer
Answer: ((a))

(1μ)(ΔQΔT)\left(\frac{1}{\mu}\right)\left( \frac{\Delta Q}{\Delta T} \right)

96

In engineering drawing, the letters LH signifies __________.

  1. ((a))

    Level Hide

  2. ((b))

    Left Hand

  3. ((c))

    Low Heat

  4. ((d))

    Limit of Height

Show Answer
Answer: ((a))

Level Hide

97

Identify the material having high coefficient of volume expansion. 

  1. ((a))

    Brass

  2. ((b))

    Alcohol

  3. ((c))

    Glass

  4. ((d))

    Water

Show Answer
Answer: ((a))

Brass

98

An object starts from rest at x = 0 m and moves with a constant acceleration of 1.6 m/s2 along the x-axis. During its journey from x = 12.8 m to x = 20.0 m, its average velocity will be __________.

  1. ((a))

    7.2 m/s

  2. ((b))

    3.6 m/s

  3. ((c))

    8.8 m/s

  4. ((d))

    2.4 m/s

Show Answer
Answer: ((a))

7.2 m/s

99

You are given a question and two statements. Identify which of the statements is/are necessary/sufficient to answer the question.

Question: What was the discount percent offered on the soap by the store?

Statements:

I) The store is giving 1 soap free on purchase of three.

II) Rs. 10 discount is offered on purchase of soap worth 36.

  1. ((a))

    II alone is sufficient while I alone is not sufficient

  2. ((b))

    I alone is sufficient while II alone is not sufficient

  3. ((c))

    Neither I nor II is sufficient

  4. ((d))

    Either I or II is sufficient

Show Answer
Answer: ((a))

II alone is sufficient while I alone is not sufficient

100

Identify the material having low coefficient of volume expansion 

  1. ((a))

    Iron

  2. ((b))

    Mercury

  3. ((c))

    Brass

  4. ((d))

    Aluminium

Show Answer
Answer: ((a))

Iron

Part B (75 questions)

101

What is the amount of current is flowing through the resistor R1?

  1. ((a))

    0.8 A

  2. ((b))

    80 mA

  3. ((c))

    160 mA

  4. ((d))

    10 mA

Show Answer
Answer: ((a))

0.8 A

102

In ideal case, what should be the charging current for a 100 Ah battery?

  1. ((a))

    10 A

  2. ((b))

    20 A

  3. ((c))

    8 A

  4. ((d))

    5 A

Show Answer
Answer: ((a))

10 A

103

Average resistance of human body is approximately:

  1. ((a))

    500 Ω

  2. ((b))

    2000 Ω

  3. ((c))

    1000 Ω

  4. ((d))

    3000 Ω

Show Answer
Answer: ((a))

500 Ω

104

Which of the following is a Pentavalent element used for doping of semi-conductors?

  1. ((a))

    Aluminum

  2. ((b))

    Antimony

  3. ((c))

    Indium

  4. ((d))

    Boron

Show Answer
Answer: ((a))

Aluminum

105

Why is the depletion region in Zener diodes narrower than a regular diode?

  1. ((a))

    Because the doping of P & N regions in Zener diode is lighter than in a regular diode.

  2. ((b))

    Because of the Heavy doping of P & N regions in Zener diode than in regular diode.

  3. ((c))

    Because Zener diodes are made of different semiconductor.

  4. ((d))

    Because P region is heavily doped while N region is lightly doped.

Show Answer
Answer: ((a))

Because the doping of P & N regions in Zener diode is lighter than in a regular diode.

106

V-I curve of an ohmic component will be a/an:

  1. ((a))

    elliptical

  2. ((b))

    parabolic

  3. ((c))

    straight line

  4. ((d))

    non-linear

Show Answer
Answer: ((a))

elliptical

107

If a reverse biased Zener diode is operating in breakdown region, then the voltage across Zener diode:

  1. ((a))

    will remain same irrespective of the current through the circuit

  2. ((b))

    is directly proportional to the source voltage

  3. ((c))

    is directly proportional to the current

  4. ((d))

    is inversely proportional to the current

Show Answer
Answer: ((a))

will remain same irrespective of the current through the circuit

108

A 6 pole 3 φ induction motor is operating at a speed of 950 rpm on 550 V, 50 Hz mains. What is the slip?

  1. ((a))

    5%

  2. ((b))

    2%

  3. ((c))

    4%

  4. ((d))

    Can't be determined

Show Answer
Answer: ((a))

5%

109

What is the color of neutral in three core flexible cables?

  1. ((a))

    Brown

  2. ((b))

    Black

  3. ((c))

    Blue

  4. ((d))

    Red

Show Answer
Answer: ((a))

Brown

110

Which electrolyte is used in Lead-Acid cells?

  1. ((a))

    Concentrated H2SO4

  2. ((b))

    Diluted H2SO4

  3. ((c))

    NaOH

  4. ((d))

    Any Alkali

Show Answer
Answer: ((a))

Concentrated H2SO4

111

Which of the following is the ideal value of earthing resistance used for large power stations?

  1. ((a))

    1 Ω

  2. ((b))

    0.5 Ω

  3. ((c))

    5 Ω

  4. ((d))

    10 Ω

Show Answer
Answer: ((a))

1 Ω

112

Which of the following insulating materials has the lowest dielectric losses?

  1. ((a))

    EPR

  2. ((b))

    PE (Polyethylene)

  3. ((c))

    XLPE

  4. ((d))

    PVC

Show Answer
Answer: ((a))

EPR

113

Which among the following DC generators produces constant output voltage at all loads?

  1. ((a))

    Shunt generator

  2. ((b))

    Short shunt compound generator

  3. ((c))

    Level compound generator

  4. ((d))

    Series generator

Show Answer
Answer: ((a))

Shunt generator

114

Which of the following components is used for collecting current from the commutator and supply it to the external load?

  1. ((a))

    Ammature

  2. ((b))

    Magnet

  3. ((c))

    Yoke

  4. ((d))

    Brushes

Show Answer
Answer: ((a))

Ammature

115

Which of the following has a NEGATIVE temperature coefficient of resistance?

  1. ((a))

    Graphite

  2. ((b))

    Aluminum

  3. ((c))

    Iron

  4. ((d))

    Copper

Show Answer
Answer: ((a))

Graphite

116

Which of the following wiring is commonly used in commercial and industrial wiring?

  1. ((a))

    Conduit Wiring

  2. ((b))

    Batten Wiring

  3. ((c))

    Cleat Wiring

  4. ((d))

    Casing and Capping Wiring

Show Answer
Answer: ((a))

Conduit Wiring

117

Increase in the plate area of a cell will:

  1. ((a))

    have the same impact as increasing the gap between the plates

  2. ((b))

    decrease the internal resistance.

  3. ((c))

    not impact internal resistance

  4. ((d))

    increase the internal resistance

Show Answer
Answer: ((a))

have the same impact as increasing the gap between the plates

118

First generation computers had which of the following?

  1. ((a))

    Magnetic tapes

  2. ((b))

    Transistors

  3. ((c))

    ICs

  4. ((d))

    Vaccum tubes & Magnetic drum

Show Answer
Answer: ((a))

Magnetic tapes

119

Which of the following is NOT an alternate term for Hopkinson's test?

  1. ((a))

    Heat run test

  2. ((b))

    Back to back test

  3. ((c))

    Regenerative test

  4. ((d))

    Brake test

Show Answer
Answer: ((a))

Heat run test

120

How many P-N junction diode(s) is/are required for a full wave rectifier circuit? (Center-Tap)

  1. ((a))

    2

  2. ((b))

    1

  3. ((c))

    4

  4. ((d))

    6

Show Answer
Answer: ((a))

2

121

What should be the value of I2 flowing in the following circuit?

  1. ((a))

    6 A

  2. ((b))

    2 A

  3. ((c))

    4 A

  4. ((d))

    8 A

Show Answer
Answer: ((a))

6 A

122

In which of the following regions of a cable, voltage stress is maximum?

  1. ((a))

    Insulator

  2. ((b))

    Sheath

  3. ((c))

    Surface of the conductor

  4. ((d))

    Core of the conductor

Show Answer
Answer: ((a))

Insulator

123

The peak output voltage of a transformer will NOT depend on:

  1. ((a))

    supply voltage

  2. ((b))

    number of turns in the secondary coil

  3. ((c))

    number of turns in the primary coil

  4. ((d))

    frequency of the supply voltage

Show Answer
Answer: ((a))

supply voltage

124

Two resistors of 5 Ω each are connected in series and being powered by a 12 V battery. What is the current flowing through the circuit?

  1. ((a))

    2.4 A

  2. ((b))

    1 A

  3. ((c))

    2 A

  4. ((d))

    1.2 A

Show Answer
Answer: ((a))

2.4 A

125

Which of the following is used in transformer protection system?

  1. ((a))

    Buchholz Relay

  2. ((b))

    Pressure Switches

  3. ((c))

    MHO relay

  4. ((d))

    Merz price protection

Show Answer
Answer: ((a))

Buchholz Relay

126

Three bulbs of 40 W, 60 W & 100 W are connected in series across 220 V AC source. Which bulb will glow brighter?

  1. ((a))

    100 W bulb

  2. ((b))

    60 W bulb

  3. ((c))

    40 W bulb

  4. ((d))

    All bulbs will be equally bright

Show Answer
Answer: ((a))

100 W bulb

127

How is the condition of an earth electrode verified?

  1. ((a))

    By Measuring power

  2. ((b))

    By measuring resistance

  3. ((c))

    By Measuring Voltage

  4. ((d))

    By measuring current

Show Answer
Answer: ((a))

By Measuring power

128

Parallel grouping of cells is done to:

  1. ((a))

    increase the current capacity

  2. ((b))

    increase the internal resistance

  3. ((c))

    decrease the output voltage

  4. ((d))

    increase the output voltage

Show Answer
Answer: ((a))

increase the current capacity

129

What current is flowing through the diode?

  1. ((a))

    0.5 mA

  2. ((b))

    5 mA

  3. ((c))

    2 mA

  4. ((d))

    0.5 A

Show Answer
Answer: ((a))

0.5 mA

130

If six 12 V cells are connected in parallel, then the output voltage will be:

  1. ((a))

    6 V

  2. ((b))

    72 V

  3. ((c))

    12 V

  4. ((d))

    2 V

Show Answer
Answer: ((a))

6 V

131

Which of the following is not a part of the earthing system?v

  1. ((a))

    Earthing lead

  2. ((b))

    Earth Continuity Conductor

  3. ((c))

    Earth electrode

  4. ((d))

    Fuse

Show Answer
Answer: ((a))

Earthing lead

132

How many 200 linear lamps are required to obtain a minimum illuminance of 50 lux in a 5 m and 8 m rectangular hall?

  1. ((a))

    10

  2. ((b))

    4

  3. ((c))

    40

  4. ((d))

    160

Show Answer
Answer: ((a))

10

133

Lathe Machines commonly use _______ motor.

  1. ((a))

    DC shunt

  2. ((b))

    slip ring induction

  3. ((c))

    cumulative compound

  4. ((d))

    DC series

Show Answer
Answer: ((a))

DC shunt

134

What impact will the moisture content have on the earth soil resistance?

  1. ((a))

    No Impact

  2. ((b))

    Soil resistance will decrease

  3. ((c))

    Soil resistance will Increase

  4. ((d))

    Depends on the type of soil

Show Answer
Answer: ((a))

No Impact

135

The value of electric field E at a point in Electric field of a point charge can be calculated using:

  1. ((a))

    Kirchhoff's Law

  2. ((b))

    Coulomb's Law

  3. ((c))

    Lenz's Law

  4. ((d))

    Ohm's Law

Show Answer
Answer: ((a))

Kirchhoff's Law

136

Direct Online Starters are generally used with motors of:

  1. ((a))

    any Capacity

  2. ((b))

    less than 5 hp

  3. ((c))

    more than 10 hp but less than 50 hp

  4. ((d))

    more than 10 hp

Show Answer
Answer: ((a))

any Capacity

137

Read the statement given below and answer the question.

Statement: The mass of the substance (m) deposited or liberated at any electrode is directly proportional to the quantity of electricity or charge (Q) passed.

Question: The above statement is associated with which of the following laws?

  1. ((a))

    Ohm's Law

  2. ((b))

    Faraday's Law Of Electrolysis

  3. ((c))

    Kirchhoff's Current Law

  4. ((d))

    Faraday's Law Of Electromagnetic Induction

Show Answer
Answer: ((a))

Ohm's Law

138

Which of the following is not true with respect to the ammeter & voltmeter?

  1. ((a))

    Ammeter has high resistance and voltmeter has low resistance

  2. ((b))

    Ammeter is connected in series and the voltmeter is connected in parallel

  3. ((c))

    Connecting the ammeter to the circuit requires disassembling the circuit.

  4. ((d))

    A voltmeter can be connected without disconnecting the circuit

Show Answer
Answer: ((a))

Ammeter has high resistance and voltmeter has low resistance

139

Which of the following devices is used for measuring the speed of DC machines?

  1. ((a))

    Tachometer

  2. ((b))

    LCR Meter

  3. ((c))

    Rheostat

  4. ((d))

    Ammeter

Show Answer
Answer: ((a))

Tachometer

140

Which of the following conditions is not necessary for the parallel operation of alternators?

  1. ((a))

    Phase sequence and Busy bar voltages of the incoming machine should be similar

  2. ((b))

    The terminal voltage of the running machine should be double that of the incoming machine

  3. ((c))

    The frequency of the two terminal voltages should be almost equal

  4. ((d))

    The phase angle of the two systems should be equal

Show Answer
Answer: ((a))

Phase sequence and Busy bar voltages of the incoming machine should be similar

141

Which of the following is true for specific resistance of soil?

  1. ((a))

    Varies from soil to soil

  2. ((b))

    Is constant and doesn't depend on the soil

  3. ((c))

    Depends on the circuit connected

  4. ((d))

    Depends on supply voltage

Show Answer
Answer: ((a))

Varies from soil to soil

142

A 220 V dc motor having an armature resistance of 0.8 ohm draws an armature current of 25 A. What will be the value of back emf induced?

  1. ((a))

    240 V

  2. ((b))

    220 V

  3. ((c))

    200 V

  4. ((d))

    208 V

Show Answer
Answer: ((a))

240 V

143

Which of the following is true w.r.t. the primary coil of a transformer in OC & SC tests?

  1. ((a))

    Low voltage side for O.C. test & high voltage side for S.C. test

  2. ((b))

    Low Voltage side for both O.C. & S.C. tests

  3. ((c))

    High voltage side for O.C. test & low voltage side for S.C. test

  4. ((d))

    High Voltage side for both O.C. & S.C. tests

Show Answer
Answer: ((a))

Low voltage side for O.C. test & high voltage side for S.C. test

144

Intensity of light is measured in:

  1. ((a))

    Gauss

  2. ((b))

    Weber

  3. ((c))

    Candela

  4. ((d))

    Lumen

Show Answer
Answer: ((a))

Gauss

145

How many wattmeter elements are needed at minimum to measure the power of a 3-phase circuit?

  1. ((a))

    2

  2. ((b))

    1

  3. ((c))

    4

  4. ((d))

    3

Show Answer
Answer: ((a))

2

146

Which of the following factors determines the thickness of the insulation layer in cables?

  1. ((a))

    Current Capacity

  2. ((b))

    Power rating

  3. ((c))

    Operating Voltage

  4. ((d))

    Permeability

Show Answer
Answer: ((a))

Current Capacity

147

The shaft torque of a DC motor is:

  1. ((a))

    more than its armature torque

  2. ((b))

    same as its armature torque

  3. ((c))

    less than its armature torque

  4. ((d))

    either less or more than the armature torque depending on the size and make of the motor

Show Answer
Answer: ((a))

more than its armature torque

148

Watt-hour efficiency of a cell ________ Ampere-hour efficiency.

  1. ((a))

    is always less than

  2. ((b))

    is always more than

  3. ((c))

    is always equal to

  4. ((d))

    can be less or more than

Show Answer
Answer: ((a))

is always less than

149

Which of the expressions is true for the balanced condition of the following wheatstone bridge?

  1. ((a))

    RX = (R3 + R1)/R2

  2. ((b))

    RX/R3 = R2/R1

  3. ((c))

    RX = R2/(R3/R1)

  4. ((d))

    RX/R1 = R2/R3

Show Answer
Answer: ((a))

RX = (R3 + R1)/R2

150

Which of the following is a characteristic of an earth electrode?

  1. ((a))

    Low conductance

  2. ((b))

    Low resistance

  3. ((c))

    Infinite resistance

  4. ((d))

    High resistance

Show Answer
Answer: ((a))

Low conductance

151

Which of the following principles is KVL based on?

  1. ((a))

    conservation of momentum

  2. ((b))

    conservation of energy

  3. ((c))

    conservation of mass

  4. ((d))

    conservation of charge

Show Answer
Answer: ((a))

conservation of momentum

152

Which of the following wiring systems has the longest life span?

  1. ((a))

    Conduit Wiring

  2. ((b))

    Batten Wiring

  3. ((c))

    Cleat Wiring

  4. ((d))

    Casing and Capping Wiring

Show Answer
Answer: ((a))

Conduit Wiring

153

IE Rule 67 stands for:

  1. ((a))

    test for resistance of insulation

  2. ((b))

    joints

  3. ((c))

    connection with earth

  4. ((d))

    condensers

Show Answer
Answer: ((a))

test for resistance of insulation

154

Which of the following is a trivalent doping element?

  1. ((a))

    Arsenic

  2. ((b))

    Antimony

  3. ((c))

    Boron

  4. ((d))

    Phosphorous

Show Answer
Answer: ((a))

Arsenic

155

If a 3-phase 100 Hz induction motor has a slip of 4%, then what will be the frequency of motor induced emf?

  1. ((a))

    50 Hz

  2. ((b))

    8 Hz

  3. ((c))

    100 Hz

  4. ((d))

    4 Hz

Show Answer
Answer: ((a))

50 Hz

156

Which of the following motors is typically found on low horsepower applications?

  1. ((a))

    Permanent magnet DC motors

  2. ((b))

    Shunt DC motors

  3. ((c))

    Compound DC motors

  4. ((d))

    Series DC motors

Show Answer
Answer: ((a))

Permanent magnet DC motors

157

Avalanche breakdown is caused due to:

  1. ((a))

    emission of electrons

  2. ((b))

    Impact of ionization

  3. ((c))

    strong electric field

  4. ((d))

    high temperature

Show Answer
Answer: ((a))

emission of electrons

158

If a silicon diode is operating in forward bias in a circuit with 12 V supply and 240 Ω resistor, then what will be the voltage drop across the diode?

  1. ((a))

    1.5 V

  2. ((b))

    6 V

  3. ((c))

    12 V

  4. ((d))

    0.7 V

Show Answer
Answer: ((a))

1.5 V

159

Controlling Torque in megger is provided by:

  1. ((a))

    gravity

  2. ((b))

    coil

  3. ((c))

    eddy current

  4. ((d))

    battery

Show Answer
Answer: ((a))

gravity

160

High tonnage kettles are generally used in circulation lines with volumes up to _______?

  1. ((a))

    22 kV

  2. ((b))

    11 kV

  3. ((c))

    33 kV

  4. ((d))

    50 kV

Show Answer
Answer: ((a))

22 kV

161

Which of the following is required for grouping 2 cells in parallel?

  1. ((a))

    They should have same internal resistance.

  2. ((b))

    They should be Fully charged.

  3. ((c))

    They should have the same ampere-hour rating.

  4. ((d))

    They should have same emf.

Show Answer
Answer: ((a))

They should have same internal resistance.

162

Which of the following IE rules stands for "Danger Notices"?

  1. ((a))

    IE Rule 45

  2. ((b))

    IE Rule 43

  3. ((c))

    IE Rule 35

  4. ((d))

    IE Rule 42

Show Answer
Answer: ((a))

IE Rule 45

163

KCL is based on the principle of:

  1. ((a))

    conservation of mass

  2. ((b))

    conservation of momentum

  3. ((c))

    conservation of charge

  4. ((d))

    conservation of energy

Show Answer
Answer: ((a))

conservation of mass

164

Which of the following core types is suitable for high frequency transformers used in radio transmission?

  1. ((a))

    Copper core

  2. ((b))

    Carbonyl Iron core

  3. ((c))

    Air core

  4. ((d))

    Soft Iron core

Show Answer
Answer: ((a))

Copper core

165

Wheatstone bridge can be used to measure ______.

  1. ((a))

    power

  2. ((b))

    resistance

  3. ((c))

    Voltage

  4. ((d))

    current

Show Answer
Answer: ((a))

power

166

A wire of length 'L' with resistance 10 Ω is drawn further so that it's length becomes 2 L. What will be the resistance of the new wire?

  1. ((a))

    5 Ω

  2. ((b))

    10 Ω

  3. ((c))

    40 Ω

  4. ((d))

    20 Ω

Show Answer
Answer: ((a))

5 Ω

167

The current carrying capacity of cables is:

  1. ((a))

    relatively more in AC

  2. ((b))

    sometimes more in AC and sometimes more in DC

  3. ((c))

    same in AC as well as DC

  4. ((d))

    relatively more in DC

Show Answer
Answer: ((a))

relatively more in AC

168

What will be the power dissipation across a silicon diode carrying a current of 50 mA?

  1. ((a))

    25 mW

  2. ((b))

    50 W

  3. ((c))

    35 mW

  4. ((d))

    100 mW

Show Answer
Answer: ((a))

25 mW

169

A half wave rectifier has a 200 V rms. source and the step-down transformer has a turns ratio of 4 ∶ 1. What will be the peak voltage across the load ignoring the drop across the diode?

  1. ((a))

    70.7 V

  2. ((b))

    40 V

  3. ((c))

    100 V

  4. ((d))

    50 V

Show Answer
Answer: ((a))

70.7 V

170

Which of the following is an application of Zener diode?

  1. ((a))

    Rectifier

  2. ((b))

    Voltage Regulator

  3. ((c))

    Amplifier

  4. ((d))

    Oscillator

Show Answer
Answer: ((a))

Rectifier

171

Which of the following cables are commonly used for LAN access in schools and offices?

  1. ((a))

    UTP

  2. ((b))

    TRS

  3. ((c))

    CAT 5

  4. ((d))

    PVC

Show Answer
Answer: ((a))

UTP

172

Which of the following is NOT true of parallel operation of alternators?

  1. ((a))

    Increase in reliability

  2. ((b))

    Increase in losses

  3. ((c))

    Increase in efficiency

  4. ((d))

    Proper load sharing

Show Answer
Answer: ((a))

Increase in reliability

173

Which of the following components is present in a DC machine but NOT in AC machine?

  1. ((a))

    Winding

  2. ((b))

    Commutator

  3. ((c))

    Stator

  4. ((d))

    Shaft

Show Answer
Answer: ((a))

Winding

174

Which of the following statements is true?

  1. ((a))

    Internal resistance is 0 for an ideal current source.

  2. ((b))

    Internal resistance is infinite for an ideal voltage source.

  3. ((c))

    Internal resistance is 0 for an ideal voltage source and infinite for an ideal current source.

  4. ((d))

    Internal resistance should be 0 for ideal current as well as ideal voltage source.

Show Answer
Answer: ((a))

Internal resistance is 0 for an ideal current source.

175

Which of the following components protects a cable against mechanical injury?

  1. ((a))

    Sheath

  2. ((b))

    Armouring

  3. ((c))

    Bedding

  4. ((d))

    Insulation

Show Answer
Answer: ((a))

Sheath

Attempt this paper under real exam conditions

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

Start Timed Attempt