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State whether the following is true or false.
Parametric sensitivity means a reactor can pass abruptly from safe operation to runaway.

  • A.True
  • B.False
  • C.True only at large scales
  • D.False only at small scales

Answer: A

Correct answer: True

Parametric sensitivity means the reactor’s behaviour depends discontinuously on a parameter - coolant temperature, feed concentration, flow rate - so that a small change past a critical value moves it from a bounded temperature profile to a runaway. It matters practically because the safe and unsafe conditions are not separated by any gradual worsening that would give warning.

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