Nuclear Power Engineering MCQs

Question 1

Which of the following ores contains maximum percentage of uranium?

Accepted Answer

Pitchblende

Answer

Carnotite

Answer

Thorium

Answer

Rescolite

Question 2

75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.

Accepted Answer

3

Answer

$$\frac{3}{4}$$

Answer

$$\frac{1}{6}$$

Answer

4

Question 3

Heavy water plant is not located at

Accepted Answer

Ramagundam

Answer

Talcher

Answer

Tuticorin

Answer

Kota

Question 4

Bhabha Atomic Research Centre (BARC) located at Trombay (near Bombay) has

Accepted Answer

Five operating research reactors (namely Apsara, Cirus Zerelina, Purnima and Dhurva)

Answer

A 420 MW nuclear power plant

Answer

A very large capacity (100 tons/yr) heavy water plant

Answer

All of the above

Question 5

Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).

Accepted Answer

85

Answer

15

Answer

45

Answer

65

Question 6

The critical mass of a fissionable material can be reduced by

Accepted Answer

Surrounding it by neutron reflecting material

Answer

Heating it

Answer

Cooling it

Answer

Surrounding it by neutron absorbing material

Question 7

In a nuclear explosion, the energy is released primarily in the form of __________ energy.

Accepted Answer

Kinetic

Answer

Potential

Answer

Thermal

Answer

Electrical

Question 8

Which is used as a coolant in nuclear reactor due to its high capture cross-section?

Accepted Answer

H 2

Answer

N 2

Answer

He

Answer

CO 2

Question 9

Pick out the correct statement.

Accepted Answer

Positron is the antiparticle of electron

Answer

In α-decay, the ratio of neutron to proton decreases

Answer

Ionising power of β-rays is higher than that of α-rays

Answer

Speed of α-rays is more than that of γ-rays