Power plant engineering. Part – 1

1. The function of the moderator in a nuclear reactor is to

A. Stop chain reaction

B. Absorb neutrons

C. Reduce the speed of neutrons

D. Reduce temperature

2. Most of the solar radiation received on earth surface lies within the range of

A. 0.2 to 0.4 microns

B. 0.38 to 0.78 microns

C. 0 to 0.38 microns

D. All of the above

3. Reheat cycle in steam power plant is used to

A. Utilize heat of flue gases

B. Increase thermal efficiency

C. Improve condenser performance

D. Reduce loss of heat

4. Which of the following materials is commonly used as a moderator in a nuclear reactor?

A. Lead

B. Heavy water

C. Uranium

D. Copper

5. Where is the draft tube of hydro power station that is an air tight pipe located?

A. Near the surge tank

B. In between penstock and the runner

C. In between runner exhaust and the tailrace

D. At the beginning of penstock

6. The most commonly used moderator material in nuclear plant is

A. Carbon

B. Water

C. Co₂

D. Liquid metal

7. The coolant used in nuclear power station is

A. Hydrogen

B. Co₂

C. Lithium

D. None of above

8. The main function of economizer of a boiler in a plant is to

A. Increase steam production

B. Reduce fuel consumption

C. Increase steam pressure

D. Increase life of the boiler

9. India’s first nuclear power plant was installed at

A. Tarapore

B. Kota

C. Kalpakkam

D. none of the above

10. The commercial sources of energy are

A. Solar, wind and biomass

B. Fossil fuels, hydropower and nuclear energy

C. Wood, animal wastes and agriculture wastes

D. none of the above