POWER SYSTEMS QUIZ

Reflector of a nuclear reactor are made up of

boron.

steel.

beryllium.

cast iron.

TRUE ANSWER : ?
YOUR ANSWER : ?

A buchholz relay is used for

nether 1 nor 2

protection of a transformer against all internal faults

protection of a transformer against all external faults

both 1 and 2

TRUE ANSWER : ?
YOUR ANSWER : ?

A gas turbine power plant is best suited for

Base load.

None of these.

Emergency.

Peak load.

TRUE ANSWER : ?
YOUR ANSWER : ?

Lightning arresters are made up of which material?

copper

silver

silicon oxide

any of the above

TRUE ANSWER : ?
YOUR ANSWER : ?

The advantage of hydro electric power station over thermal power station is

the operation cost of hydro electric power station is low

hydro electric station can be constructed at the place where the energy is required

hydro electric power station can supply the power throughout the year

the initial cost of hydro electric power station is low

TRUE ANSWER : ?
YOUR ANSWER : ?

Plug setting of a relay can be altered by varying

no. of ampere-turns.

air gap of magnetic path.

none of these.

adjustable back up stop.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is low specific speed turbine?

Pelton

Kaplan

Francis

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following power plants can generate power at unpredictable or uncontrollable time

Cooling tower.

Wind turbine.

Pulverising unit.

Condenser.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following insulator is practically used for railway crossings?

pin insulator

string insulator

strain insulator

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle?

30°

45°

35°

60°

TRUE ANSWER : ?
YOUR ANSWER : ?