power systems-1 short answer questions unit 1-4

Power Systems-I

Short answer questions

Unit 1

1.What are the different types of coals used in thermal power plant

2.What is economiser where it is placed on thermal power plant

3.what is pulverisation of coal

4.Name the different types of condensers used in thermal power plant

Which type is commonly used

5.Name the different types of  air preheater used in thermal power plant

 Which type is commonly used

6.Draw the flue gas circuit diagram in thermal power plant

7.Draw the the gas power plant indicating different components

8.what is cooling tower name different types

9.what is water hammer effect

10.what is surge tank why and where it is constructed

Unit 2

1.what is nuclear fission explain with example

2.what are fertile and fissile materials give examples for each

3.what is moderator with which materials moderator is made up pf

4.what is chain reaction  explain briefly

5.what are different types of radiations emitted during nuclear reaction

6.differentiate thermal and breeder reactors

7.differentiate between natural and enriched uranium

8.what is shielding

Unit 3 &4

1.Classify the distribution systems according to the nature of connections

2.Give the design criterion of feeder and distributor

3.write two main advantages of ac distribution over DC distribution

4.What are requirements of good distribution system

5.How DC distributors are classified into

6.what is the voltage drop formula in a uniformly loaded

Distributor Fed at one end

7.what are the main advantages of ring main distribution over radial

Distribution

8.what are the different components of distribution systems