POWER SYSTEMS QUIZ

Which of the following transmission line is most practically used in load flow analysis?

nether 1 nor 2

Nominal ∏

Nominal T

either 1 or 2

TRUE ANSWER : ?
YOUR ANSWER : ?

The function of moderator in a nuclear reactor is to

absorb neutrons.

reduce the speed of neutrons.

stop chain reaction.

reduce temperature.

TRUE ANSWER : ?
YOUR ANSWER : ?

Frequencies must be same in which of the following line to exchange the power from one place to other place ?

No need of same frequency for exchange of power

Synchronous line

both 1 and 2

Asynchronous line

TRUE ANSWER : ?
YOUR ANSWER : ?

If the breakdown voltage of the insulator is high, the thickness of the insulator is

high

None of these

less

it does not related to breakdown voltage

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following material is not used as fuse element?

Carbon.

Copper.

Aluminium.

Silver.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following will take least time in starting from cold condition to full load operation

Nuclear power plant.

Thermal power plant.

Gas turbine plant.

Hydro electric power plant.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statements is/are true? Corona is reduced by

increasing the radius of the conductor

All of these

increasing the distance between the conductor

decreasing the supply frequency

TRUE ANSWER : ?
YOUR ANSWER : ?

Merze price current scheme protection is used in

transformer.

both A and B.

bus bars.

alternator.

TRUE ANSWER : ?
YOUR ANSWER : ?

To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with

5th harmonic current.

3rd harmonic current.

2nd harmonic current.

7th harmonic current.

TRUE ANSWER : ?
YOUR ANSWER : ?

The skin effect of conductor will increase when

All of these

resistivity decrease

frequency decrease

diameter decrease

TRUE ANSWER : ?
YOUR ANSWER : ?

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