DGVCL EXAM PAPER (12-06-2016) QUIZ

Which of the following is not a part of transformer installation?

Exciter

Breather

Buchholz Relay

Conservator

TRUE ANSWER : ?
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Which of the following is the least expensive protection for over current in low voltage system?

Air break circuit breaker

Oil Circuit breaker

Rewireable fuse

Isolator

TRUE ANSWER : ?
YOUR ANSWER : ?

The main advantage of AC over DC is:

Conversion flexibility from one voltage level to other

All of these

AC can be easily converted into DC by using a rectifier

AC is easy to maintain & can be easily distributed at long distances

TRUE ANSWER : ?
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SF₆ gas:

Is nontoxic

Is lighter than air

Has pungent smell

Is yellow in colour

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A relay used for protection of motors against overload is :

Impedance relay

Electromagnetic attraction type

Thermal relay

Buchholz's relay

TRUE ANSWER : ?
YOUR ANSWER : ?

Reactance relay is used for protection against:

Over voltage fault

Earth fault

None of these

Phase fault

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You should choose Sleep option when

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

You finish working and are going to bed.

The computer is tired after working for the whole day.

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

TRUE ANSWER : ?
YOUR ANSWER : ?

The rating of transformer may be expressed in _____

kW

Horse power

kVA

kVAR

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

None of these

0.8 kWh

800 Wh

8 kWh

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The following is not a Regulatory Commission:

GERC

CSERC

DGVCL

BERC

TRUE ANSWER : ?
YOUR ANSWER : ?