IDIOM QUIZ

HRC fuses provide best protection against

open circuits

short circuits

overload

reverse current

TRUE ANSWER : ?
YOUR ANSWER : ?

The material used for fuse must have

high melting point and low specific resistance

low melting point and high specific resistance

Low melting point and low specific resistance

low melting point and any specific resistance

TRUE ANSWER : ?
YOUR ANSWER : ?

The device that detects the fault in a power system is

relay

None of these

circuit breaker

isolator

TRUE ANSWER : ?
YOUR ANSWER : ?

The short circuit in any winding of the transformer is the result of

insulation failure

impulse voltage

loose connection

mechanical vibration

TRUE ANSWER : ?
YOUR ANSWER : ?

A circuit breaker is a

None of these

current controlling device

circuit interrupting device

current limiting device

TRUE ANSWER : ?
YOUR ANSWER : ?

A fuse should have

All of these

high conductivity

low melting point

low cost

TRUE ANSWER : ?
YOUR ANSWER : ?

A fuse is a

protective device

None of these

current controlling device

current limiting device

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is used in liquid fuses ?

carbon tetrachloride

distilled water

transformer oil

sulphur hexafluoride

TRUE ANSWER : ?
YOUR ANSWER : ?

SF6 gas

is nontoxic

is lighter than air

has pungent small

is yellow in colour

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Wave trap is used to trap waves of

None of these

either of the above

power frequencies

higher frequencies entering generator or transformer units

TRUE ANSWER : ?
YOUR ANSWER : ?

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