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The fraction of heavy water in a nuclear...

The fraction of heavy water in a nuclear reactor is to.

A

increase the neutrons

B

slow down the neutrons

C

stop the electrons

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
(b) A nuclear reactor is a device in which a self-sustaining controlled chain reaction is produced in a fissionable material. A nuclear reactor consists of a moderator which is used to slow down the neutrons. Heavy water is the best moderator.
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Knowledge Check

  • The function of a moderator in a nuclear reactor is?

    A
    To moderate the number of secondary nuclei
    B
    To control the fission reaction
    C
    To increase the number of fissile (or fissionable) nuclei
    D
    To slow down the secondary neutrons

  • The purpose of using heavy water in nuclear reactior is

    A
    to increase the energy released in nuclear fission
    B
    to cool the rector to room temperature
    C
    to make the dynamo blades to woek wall
    D
    to decrease th energy of fast neutrons to the thermal energy

  • The function of the cadmium rod in a nuclear reactor is

    A
    to produce rays
    B
    to produce neutrons
    C
    to absorb neutrons
    D
    to speed up neutrons

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