What is the purpose of control rods in n...

What is the purpose of control rods in nuclear reactor?

A

To provide energy

B

To slow fission neutrons

C

To transfer heat

D

Regulates number of neutrons

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Nuclear Reactors

The following questions are about the nuclear reactor of a power plant. (a) Which isotope of uranium produces the energy in the fuel rods ? (b) Will the fuel rods last for ever ? (c ) Is the energy produced by nuclear fission or nuclear fusion ? (d) What is the purpose of using the graphite moderator ? (e) What is the function of boron rods in the nuclear reactor ? (f) Why is liquid sodium (or carbon dioxide gas) pumped through the reactor ?

Knowledge Check

In a nuclear reactor

A

cadmium rods are used to slow down the neutrons

B

moderator is used to slow down the neutrons

C

coolant is used to slow down the neutrons

D

moderator is used to control the neutrons

In a nuclear reactor.

A

the chain reaction is kept under control by rods of cadmium, which reduces the rate

B

the thick concrete shield is used to slow down the speed of fast neutrons

C

heavy water (or graphite )moderate the activity of the reactor

D

out of `U^(238)` and `U^(235)` natural uranium has less than `1%` of `U^(235)`

The control rod in a nuclear reactor is made of

A

Graphite

B

Plutonium

C

Cadmium

D

Uranium

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