electrical

Power Generation MCQ Questions and Answers Page - 3

1.

Deaerative heating is done to

Answer/ Hint      

Answer : C

Explanation :

2.

The commonly used material of condenser tubes is

Answer/ Hint      

Answer : C

Explanation :

3.

The blades of impulse turbine are

Answer/ Hint      

Answer : A

Explanation :

4.

For medium and large size of turbine the governing is used

Answer/ Hint      

Answer : B

Explanation :

5.

Function of air pump in condenser is to

Answer/ Hint      

Answer : B

Explanation :

6.

Wet air pump removes

Answer/ Hint      

Answer : C

Explanation :

7.

The mechanical efficiency of a diesel engine is defined as

Answer/ Hint      

Answer : A

Explanation :

8.

Most high-speed diesel engine work on

Answer/ Hint      

Answer : C

Explanation :

9.

In a four-stroke cycle S.I engine the camshaft runs

Answer/ Hint      

Answer : B

Explanation :

10.

The following is an S.I. engine

Answer/ Hint      

Answer : B

Explanation :

11.

The following is C.I engine

Answer/ Hint      

Answer : A

Explanation :

12.

In a four-stroke cycle petrol engine, during suction stroke

Answer/ Hint      

Answer : C

Explanation :

13.

In a four-stroke cycle diesel engine, during suction stroke

Answer/ Hint      

Answer : A

Explanation :

14.

The two-stroke cycle engine has

Answer/ Hint      

Answer : C

Explanation :

15.

For same output, same speed and same compression ratio the thermal efficiency of a two-stroke cycle petrol engine as compared to that for four stroke cycle petrol engine is

Answer/ Hint      

Answer : B

Explanation :

16.

In case of petrol engine, at starting

Answer/ Hint      

Answer : A

Explanation :

17.

Carburettor is used for

Answer/ Hint      

Answer : A

Explanation :

18.

Fuel injector is used in

Answer/ Hint      

Answer : C

Explanation :

19.

Very high-speed engines are generally

Answer/ Hint      

Answer : B

Explanation :

20.

Voltage developed to strike spark in the spark plug is in the range

Answer/ Hint      

Answer : C

Explanation :

21.

The torque developed by the engine is maximum

Answer/ Hint      

Answer : C

Explanation :

22.

Thermal efficiency of a gas turbine plant is compared to diesel engine plant is

Answer/ Hint      

Answer : B

Explanation :

23.

For a gas turbine the pressure ratio may be in range

Answer/ Hint      

Answer : B

Explanation :

24.

Thermal efficiency or closed cycle gas turbine plant increases by

Answer/ Hint      

Answer : D

Explanation :

25.

The blades of the gas turbine rotor are made of

Answer/ Hint      

Answer : D

Explanation :

26.

Maximum temperature in a gas turbine is of the order of

Answer/ Hint      

Answer : A

Explanation :

27.

In gas turbine plant, high thermal efficiency is obtained in

Answer/ Hint      

Answer : A

Explanation :

28.

In a gas turbine plant, a regenerator increase

Answer/ Hint      

Answer : C

Explanation :

29.

Capital cost of a gas turbine plant is …………. than that of a steam power plant of same capacity

Answer/ Hint      

Answer : B

Explanation :

30.

Peltol turbines are mostly

Answer/ Hint      

Answer : A

Explanation :

31.

The annual depreciation of a hydro power plant is about

Answer/ Hint      

Answer : A

Explanation :

32.

Water hammer is developed in a

Answer/ Hint      

Answer : A

Explanation :

33.

The function of surge tank is

Answer/ Hint      

Answer : C

Explanation :

34.

Gross head of a hydropower station is

Answer/ Hint      

Answer : A

Explanation :

35.

Operating charges are minimum in the case of……. for same power output

Answer/ Hint      

Answer : B

Explanation :

36.

Location of the surge tank in a hydroelectric station is near to the

Answer/ Hint      

Answer : B

Explanation :

37.

Pelton wheel turbine is used for minimum of the following heads

Answer/ Hint      

Answer : C

Explanation :

38.

Running cost of a hydroelectric power plant is

Answer/ Hint      

Answer : B

Explanation :

39.

Francis turbine is usually used for

Answer/ Hint      

Answer : B

Explanation :

40.

In high speed hydro power plant, the velocity of water in penstock is about

Answer/ Hint      

Answer : C

Explanation :

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