Nuclear Power Engineering MCQs

Question 1

Which of the following is a fuel for a fusion reactor (thermonuclear reactor)?

Accepted Answer

Deuterium and tritium

Answer

U-233

Answer

Thorium

Answer

Heavy water

Question 2

Use of molten metal as a coolant in fast breeder reactor helps in

Accepted Answer

Rapid heat transfer from the core

Answer

Accelerating the reaction rate in the core

Answer

Breeding neutrons

Answer

Accelerating the neutrons

Question 3

Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is

Accepted Answer

0.1

Answer

1

Answer

3

Answer

12

Question 4

The new nucleus formed after β-decay of a radioactive element has

Accepted Answer

Less atomic number

Answer

Less atomic weight

Answer

More atomic number

Answer

More atomic weight

Question 5

Hydrogen bomb employs the nuclear fusion of

Accepted Answer

Deuterium

Answer

Hydrogen

Answer

Tritium

Answer

Helium

Question 6

The radioisotope used to study the thyroid gland is

Accepted Answer

Iodine

Answer

Cobalt

Answer

Iron

Answer

Carbon

Question 7

Isotopes of an element have the same

Accepted Answer

Electronic configuration

Answer

Number of neutrons

Answer

Mass number

Answer

Atomic weight

Question 8

Which of the following is the most harmful for the human being?

Accepted Answer

$$\gamma $$-rays

Answer

$$\beta $$-rays

Answer

X-rays

Answer

Ultra violet rays

Question 9

Pick out the correct statement.

Accepted Answer

The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 -8 cm respectively

Answer

Loss of electrons from neutral atoms produces negative ions

Answer

Gain of electrons by neutral atoms form cations

Answer

Proton to neutron ratio in a stable nucleus is 2 : 1