DGVCL EXAM PAPER (12-06-2016) QUIZ

A 100-watt light bulb turned on for 8 hours uses :

0.8 kWh

800 Wh

None of these

8 kWh

TRUE ANSWER : ?
YOUR ANSWER : ?

You should choose Sleep option when

You are leaving for a very short time and want to resume your work shortly.

The computer is tired after working for the whole day.

When computer gets hanged frequently. Let it sleep for some time.

You finish working and are going to bed.

TRUE ANSWER : ?
YOUR ANSWER : ?

Core type transformers are popular in _____

All of these

Low voltage applications

None of these

High voltage applications

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of cycles in which a high speed circuit breaker can complete its operation is

40 to 50

3 to 8

20 to 30

10 to 18

TRUE ANSWER : ?
YOUR ANSWER : ?

The following is correct :

All of these

P = VxI

P = V²/R

P = I²xR

TRUE ANSWER : ?
YOUR ANSWER : ?

For 11 kV line the inductance per km per phase will be of the order of:

1 mH

1 H

0.1 H

0.1 mH

TRUE ANSWER : ?
YOUR ANSWER : ?

The time of closing the cycle, in modern circuit breakers is

0.01 sec.

0.003 sec.

0.1 sec.

0.001 sec.

TRUE ANSWER : ?
YOUR ANSWER : ?

A relay used for protection of motors against overload is :

Buchholz's relay

Impedance relay

Electromagnetic attraction type

Thermal relay

TRUE ANSWER : ?
YOUR ANSWER : ?

The following is/are the characteristics of SF₆ circuit breakers:

All of these

None of these

It does not need an auxiliary breaking chamber

Short break time of 2 to 2.5 cycles

TRUE ANSWER : ?
YOUR ANSWER : ?

Gujarat State Electricity Corp. Ltd. (GSECL) is a _____

Power Generation Company

Distribution Company

Transmission Company

Regulatory Commission

TRUE ANSWER : ?
YOUR ANSWER : ?