Nuclear Power Engineering MCQs

Question 1

Final product of uranium extraction plant at Jadugoda (Bihar) is

Accepted Answer

Magnesium diuranate

Answer

Uranium

Answer

Uranium oxide

Answer

Uranium carbide

Question 2

Main source of __________ is monazite sand.

Accepted Answer

Thorium

Answer

Uranium

Answer

Polonium

Answer

Hafnium

Question 3

Which of the following is the best nuclear fuel?

Accepted Answer

P u -239

Answer

N p - 239

Answer

U-234

Answer

Th-236

Question 4

Pick out the wrong statement.

Accepted Answer

Atoms with same number of protons but different number of nucleons are called isoters

Answer

Atoms with same number of nucleons but different number of protons are called isobars

Answer

Out of α, β and γ-rays, the one having maximum penetration power are γ-rays

Answer

The product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Question 5

Which of the following nuclear materials is fissile?

Accepted Answer

Plutonium-239

Answer

Uranium-238

Answer

Thorium-232

Answer

None of these

Question 6

When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as

Accepted Answer

Isotones

Answer

Isomers

Answer

Isotopes

Answer

Isobars

Question 7

A pressurised water reactor (PWR) uses pressurised water as a

Accepted Answer

Coolant

Answer

Working fluid in power turbine

Answer

Moderator

Answer

None of these

Question 8

A control rod

Accepted Answer

Both B and C

Answer

Should have small absorption cross-section

Answer

Is generally made of boron, hafnium or cadmium

Answer

Should have large absorption cross-section

Question 9

The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be __________ of its original weight.

Accepted Answer

$$\frac{1}{{16}}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{4}$$

Answer

$$\frac{1}{8}$$