A nuclear unit becoming critical means
A. It is generating power to rated capacity
B. It is capable of generating much more than rated capacity
C. There is danger of nuclear spread
D. Chain reaction that causes automatic splitting of the fuel nuclei has been established
Answer: Option D
Solution(By Examveda Team)
A nuclear unit becoming critical means Chain reaction that causes automatic splitting of the fuel nuclei has been establishedwhen the reactor is in a configuration such that one neutron from each atom fissioned causes another fission and then the reactor is said to be critical
This Question Belongs to Mechanical Engineering >> Power Plant Engineering
Reactors for propulsion applications use
A. Natural uranium
B. Molten lead
C. Any form of uranium
D. Thorium
Reactors designed for propulsion applications are designed for
A. Natural uranium
B. Enriched uranium
C. Pure uranium
D. Any type of uranium
Reactors for propulsion applications are designed for
A. Any form of uranium
B. Natural uranium
C. Enriched uranium
D. Plutonium
The size of the reactor is said to be critical when
A. Chain reaction can be initiated
B. It becomes uncontrollable
C. It explodes
D. It produces no power
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