Nuclear Power Engineering - Practice Test

[#156] Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.

(A) U-238

(B) U-233

(C) U-235

(D) Pu-239

Correct Answer

(C) U-235

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

(A) $$frac{1}{2}$$

(B) $$frac{1}{4}$$

(C) $$frac{1}{8}$$

(D) $$frac{1}{{16}}$$

Correct Answer

(D) $$frac{1}{{16}}$$

[#158] Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.

(A) Fuel elements

(B) Operating personnels

(C) Walls of the reactor

(D) None of these

(E) Fuel elements

(F) Operating personnels

(G) Walls of the reactor

(H) None of these

Correct Answer

(B) Operating personnels
(F) Operating personnels

[#159] In nuclear reactions, __________ number is conserved.

(A) Mass

(B) Atomic

(C) Both A & B

(D) Neither A nor B

Correct Answer

(C) Both A & B

[#160] The atomic number of an element is equal to the number of __________ present in its atom.

(A) Neutrons

(B) Electrons

(C) Protons

(D) Either B or C

Correct Answer

(D) Either B or C

Nuclear Power Engineering - Study Mode

[#156] Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.

Correct Answer

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

Correct Answer

[#158] Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.

Correct Answer

[#159] In nuclear reactions, __________ number is conserved.

Correct Answer

[#160] The atomic number of an element is equal to the number of __________ present in its atom.

Correct Answer