There are 16 questions to be attended in 20 minutes. The questions are on Electrical Engineering. Read the study material before making an attempt so that you build your confidence in the subject. This is the first of the series of 10 questions paper that will appear before the RRB examination for SSE and JE to be held in Dec.

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There are 16 questions to be attended in 20 minutes. The questions are on Electrical Engineering. Read the study material before making an attempt so that you build your confidence in the subject. This is the first of the series of 10 questions paper that will appear before the RRB examination for SSE and JE to be held in Dec.

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The Answer Key:

Sr No

Question

Answer

Remarks

1

Rate of flow of charge is called

Ampere

2

The unit of resistance is Ohm is derived from the relation between voltage and current

V/I

As per ohms law, voltage is in direct proportion to the current flowing through the conductor and constant of proportionality is called resistance.

3

When a sinusoidal voltage is applied across the inductor, the current always

lag the voltage applied

4

Kirchhoff’s voltage law states that the

sum of voltage drops and battery emf in a closed loop is zero

5

During electric heating, the work done by electric current is given by a formula

I*R*t

Power multiply by time gives the work done and work done is V*I*t

6

The action that takes place of positive plate is conversion of

PbO2 to PbSO4

7

The symbol j³ represents counter clock wise rotation of vector through how many degrees?

270

8

What will happen to the speed of the DC series motor if a resistance is inserted in parallel to its field winding?

increase in speed

With resistance in parallel to the field winding, field flux will reduce and thus speed will go up

9

The generation voltage of large power plant is in the range of

3-33kV

The voltage of generation is decided based on balancing voltage and current in the winding. It is not possible to provide insulation for very high voltage and limited to 11 kV only

10

The disadvantage with the use of cable for power distribution is

high cost

11

This welding process uses welding electrodes which is fused during electric heating

MIG

12

The process through which the impurities are added in a semi-conductor material is called

doping

13

Dielectric strength of air at normal temperature and pressure is

30 kV/cm

14

A gear drive is a equivalent model of a transformer than voltage is represented by

Torque

15

MCCB stands for

Moulded Case Circuit Breaker

16

A wire is drawn to three times its original length, by how much times its resistance will change

9 times

R=ρ*l/A; Volume say V remains constant; multiply denominator and numerator with l, we get R=ρ*l*l/V; therefore, R will increase by 9 times

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Answered

Review

Question 1 of 16

1. Question

During electric heating, the work done by electric current is given by a formula

Question 2 of 16

2. Question

The symbol j^{3} represents counter clock wise rotation of vector through how many degrees?

Question 3 of 16

3. Question

Rate of flow of charge is called

Question 4 of 16

4. Question

The unit of resistance is Ohm is derived from the relation between voltage and current

Question 5 of 16

5. Question

When a sinusoidal voltage is applied across the inductor, the current always

Question 6 of 16

6. Question

Kirchhoff’s voltage law states that the

Question 7 of 16

7. Question

The action that takes place of positive plate is conversion of

Question 8 of 16

8. Question

What will happen to the speed of the DC series motor if a resistance is inserted in parallel to its field winding?

Question 9 of 16

9. Question

The generation voltage of large power plant is in the range of

Question 10 of 16

10. Question

The disadvantage with the use of cable for power distribution is

Question 11 of 16

11. Question

This welding process uses welding electrodes which is fused during electric heating

Question 12 of 16

12. Question

The process through which the impurities are added in a semi-conductor material is called

Question 13 of 16

13. Question

Dielectric strength of air at normal temperature and pressure is

Question 14 of 16

14. Question

A gear drive is a equivalent model of a transformer than voltage is represented by

Question 15 of 16

15. Question

MCCB stands for

Question 16 of 16

16. Question

A wire is drawn to three times its original length, by how much times its resistance will change

There is common syllabus for the positions you have applied. The best reference book is to go back to what you have studied during first two years of engineering and the same is sufficient.

Hi!

Can anyone please recommend the reference material for the preparation of the online exam?

I have applied for both JE and SE positions and verified for the same.

Positions include Electrical, Signal, Track machine and electrical TRS and Eletrical workshops.

Is there any seperate material to be studied for each or do i refer a common book?

Can anyone please suggest name of books or reference links?

Thanks.

There is common syllabus for the positions you have applied. The best reference book is to go back to what you have studied during first two years of engineering and the same is sufficient.