A nuclear reactor is said to have become 'critical' when

A it stops due to malfunctioning
B it starts emitting dangerous radioactive radiations
C it is shut down to avoid explosion
D it is ready to produce controlled energy

Correct Answer: it is ready to produce controlled energy

To produce controlled energy i.e energy at a controlled or steady rate, the number of fissions per second must be controlled and maintained at that rate. Excess neutrons should be absorbed by control roads like cadmium.

Bissoy MCQ
#Physics

Related Questions

A nuclear reactor is said to be critical when the neutron population in the reactor core is
A Rapidly increasing leading to the point of explosion
B Decreasing from the specified value
C Reduced to zero
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A Specific fuel consumption is very low due to the use of heavy water
B Fuel cost is much lower than that used in pressurised water or boiling water reactor
C Heavy water is used both as coolant as well as moderator
D Both B and C
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A Critical
B Breeder
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C Batch
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A Concrete
B Steel
C Zircalloy
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B Uses faster neutrons for fission
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A Absolute assignment
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A Less than
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