1000+ Nuclear Power Plant MCQ Questions and Answers - 2

Question: 6

The most commonly used moderator in nuclear power plants is

(A) graphite

(B) steel

(C) concrete and bricks

(D) heavy water

Question: 7

Which one of the following types of nuclear reactor does not require a heat exchanger?

(A) gas-cooled

(B) sodium-cooled

(C) pressurized water

(D) boiling water

Question: 8

Which one of the following pairs of materials is used as moderator in nuclear reactors?

(A) beryllium and heavy water

(B) cadmium and beryllium

(C) zirconium and beryllium

(D) heavy water ad zirconium

Question: 9

What is the function of heavy water in a nuclear reactor?

(A) it serves as a neutron absorber

(B) it serves as a coolant as well as moderator

(C) it serves as a moderator

(D) it serves as a coolant

Question: 10

Enriched uranium is required as fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has

(A) low neutron absorption cross section

(B) high neutrons scatter cross section

(C) low moderating efficiency

(D) high neuron absorption cross sections