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The function of graphite and the control rods in a nuclear reactor are A. to produce neutrons and to shield the reactor B. to slow down the neutrons and to absorb the excess neutrons respectively C. to absorb the excess neutrons and to shield the reactor respectively D. to absorb neutrons and to reduce the energy of the neutrons respectively

The function of graphite and the control rods in a nuclear reactor are A. to produce neutrons and to shield the reactor B. to slow down the neutrons and to absorb the excess neutrons respectively C. to absorb the excess neutrons and to shield the reactor respectively D. to absorb neutrons and to reduce the energy of the neutrons respectively

Grade:upto college level

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Control rodsare made of neutron poisons and therefore absorb neutrons. When acontrol rodis inserted deeper into thereactor, it absorbs more neutrons than the material it displaces—often the moderator. This action results in fewer neutrons available to causefissionand reduces thereactor'spower output.

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