Electrical Engineering MCQ
If a nuclear reaction is operating at constant power the multiplication factor is:
- Greater than 1
- 1
- Less than 1
- Any of above
Correct answer: 2. 1
Explanation:
The multiplication factor, k, is mathematically defined as
k = number of neutrons in one generation/number of neutrons in preceding generation
- If k is greater than 1, the chain reaction is supercritical, and the neutron population will grow exponentially.
- If k is less than 1, the chain reaction is subcritical, and the neutron population will exponentially decay.
- If k = 1, the chain reaction is critical and the neutron population will remain constant.