If a Control Rod Is Pulled Rapidly Out of a Nuclear

Multiple Choice

If a control rod is pulled rapidly out of a nuclear reactor core, what controls the response time (how fast the power level increases) ?

A) the speed at which the rod can be removed
B) the speed at which neutrons are captured
C) the rate at which delayed neutrons from beta decay of fission fragments are emitted
D) the rate at which the coolant circulates in the core
E) the time between when a neutron is captured and when the nucleus actually fissions