The disintegration rate of a radioactive element
A. progressively increases
B. progressively decreases
C. remains constant throughout
D. may increase or decrease: depends on the material
Answer: Option B
This Question Belongs to Metallurgical Engineering >> Metallurgy Of Nuclear Metals
Which of the following is not an ore of uranium?
A. Kyanite
B. Pitchblende
C. Carnotite
D. Rescolite
An ideal coolant for a nuclear reactor should be
A. a good absorber of neutrons
B. capable of attaining high temperature, only when it is pressurised
C. of high density, but of low heat transfer coefficient
D. free from radiation damage & non-corrosive
Decay product of tritium which is a Beta emitter is
A. hydrogen
B. helium
C. deuterium
D. none of these
The function of moderators in nuclear reactor is to
A. slow down the secondary neutrons
B. absorb the secondary neutrons
C. control the chain reaction
D. none of these
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