7000+ Nuclear Metals Questions and Answers Pdf - 1

Question: 1

Radioactivity of an isotope is expressed in

(A) Curie

(B) Ergs

(C) MeV

(D) Barns

Question: 2

Which of the following does not need a moderator?

(A) Pressurised water reactor

(B) Homogenous reactor

(C) Fast breeder reactor

(D) Candu reactor

Question: 3

Molten sodium is used as a coolant in fast breeder reactor, because of its

(A) Faster heat removal capability from core

(B) Capability to increase the reaction rate in the core

(C) Neutron breeding capability

(D) Excellent moderating properties

Question: 4

Extraction of uranium from its ore is done by _____ method.

(A) Pyrometallurgical

(B) Electrometallurgical

(C) Physical beneficiation

(D) Chemical

Question: 5

Which one is radioactive in nature?

(A) Tritium

(B) Heavy hydrogen

(C) Deuterium

(D) Helium