electrical

Power Generation MCQ Questions and Answers Page - 2

1.

Evaporative type of condenser has

Answer/ Hint      

Answer : A

Explanation :

2.

Pipes carrying steam are generally made up of

Answer/ Hint      

Answer : A

Explanation :

3.

For the safety of a steam boiler the number of safety valves fitted are

Answer/ Hint      

Answer : C

Explanation :

4.

Steam turbine commonly used in steam power station are

Answer/ Hint      

Answer : A

Explanation :

5.

Belt conveyer can be used to transport coal at inclinations upto

Answer/ Hint      

Answer : A

Explanation :

6.

The maximum length of screw conveyer is about

Answer/ Hint      

Answer : A

Explanation :

7.

The efficiency of a modern boiler using coal and heat recovery equipment is about

Answer/ Hint      

Answer : D

Explanation :

8.

The average ash contain in India coal is about

Answer/ Hint      

Answer : D

Explanation :

9.

Load centre in a power station is

Answer/ Hint      

Answer : C

Explanation :

10.

Steam pressure in a steam power station, which is usually kept now-a-days is of the order of

Answer/ Hint      

Answer : D

Explanation :

11.

Economiser improves boiler efficiency by

Answer/ Hint      

Answer : B

Explanation :

12.

The capacity of large turbo-generators varies from

Answer/ Hint      

Answer : B

Explanation :

13.

Caking coals are those which

Answer/ Hint      

Answer : D

Explanation :

14.

Primary air is that air which is used to

Answer/ Hint      

Answer : C

Explanation :

15.

Secondary air is the air used to

Answer/ Hint      

Answer : D

Explanation :

16.

Pressure of sulphur in coal with result in

Answer/ Hint      

Answer : D

Explanation :

17.

Pulverised fuel is used for

Answer/ Hint      

Answer : B

Explanation :

18.

Combustion elements in the fuel are

Answer/ Hint      

Answer : B

Explanation :

19.

Heating value of diesel oil is about

Answer/ Hint      

Answer : D

Explanation :

20.

Higher calorific value (H.C.V) is the heating value of fuel

Answer/ Hint      

Answer : B

Explanation :

21.

Which one is essential for combustion of fuel?

Answer/ Hint      

Answer : D

Explanation :

22.

Ultimate analysis of fuel is determination of percentage of

Answer/ Hint      

Answer : B

Explanation :

23.

Which of the following coals has the highest calorific value?

Answer/ Hint      

Answer : D

Explanation :

24.

The proximate analysis of coal gives

Answer/ Hint      

Answer : C

Explanation :

25.

In coal preparation plant, magnetic separators are used to remove

Answer/ Hint      

Answer : C

Explanation :

26.

Load carrying capacity of belt conveyer is about

Answer/ Hint      

Answer : B

Explanation :

27.

Methods which is commonly applied for unloading the coal for small power plant is

Answer/ Hint      

Answer : B

Explanation :

28.

Bucket elevator are used for

Answer/ Hint      

Answer : B

Explanation :

29.

The amount of air which I supplied from complete combustion is called

Answer/ Hint      

Answer : B

Explanation :

30.

In ………. System fuel from a central pulverizing unit is delivered to a bunker and then to the various burner

Answer/ Hint      

Answer : B

Explanation :

31.

Under-feed stoker work best for coals high in volatile matter and with caking tendency

Answer/ Hint      

Answer : C

Explanation :

32.

Example of overfeed type stoker is

Answer/ Hint      

Answer : D

Explanation :

33.

Where unpulverized coal has to be used and boiler capacity is large, the stoker which is used is

Answer/ Hint      

Answer : B

Explanation :

34.

Economisers are usually used in boiler plant working above

Answer/ Hint      

Answer : C

Explanation :

35.

Superheating of steam is desirable is desirable for

Answer/ Hint      

Answer : D

Explanation :

36.

Thermal efficiency of the steam plant is of the order of

Answer/ Hint      

Answer : A

Explanation :

37.

In a regenerative air preheater, the heat is transferred

Answer/ Hint      

Answer : B

Explanation :

38.

The height of chimney in a steam power plant is governed by

Answer/ Hint      

Answer : B

Explanation :

39.

In boiler, the feed water treatment is done mainly for removing …. Troubles

Answer/ Hint      

Answer : D

Explanation :

40.

Blowing down of boiler water is the process

Answer/ Hint      

Answer : C

Explanation :

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