General Knowledge - General Science - Discussion

Discussion Forum : General Science - Nuclear Science (Q.No. 1)
1.
Which of the following is used as a moderator in nuclear reactor?
Thorium
Graphite
Radium
Ordinary water
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
42 comments Page 3 of 5.

Srinivas said:   1 decade ago
Is D20 is used as moderator in nuclear reactor?

Priya said:   10 years ago
Graphite is used because it slows down the speed of neutrons so that the nuclear reaction can occur in a controlled manner.

Arsalan said:   10 years ago
Graphite is used in nuclear reaction.

PATAN IRFAN KHAN said:   10 years ago
Moderator means to slow down the neutrons. With the help of graphite electrode.

Zeuos said:   10 years ago
Graphite is good nuclear reactor.

S kumur said:   10 years ago
In nuclear reactor cadmium rod and D2O is used to moderate the electron to speed down the reaction.

Sss said:   9 years ago
@S Kumur.

Why cadmium rods are used?

Gajendra malav said:   9 years ago
Graphite moderating ratio is 170. It is a second best moderator first is D2O.

MUKUNDA pollayi said:   9 years ago
In nuclear reactors. There is. No participation of electrons. Only proton and neutron only. In this case, both graphite and heavy water (20. Atomic mass) are suggestible.

Both reduce the speed of neutrons.

Then, The probability of colliding nature of neutrons to uranium will increase.

In each collision, 3 neutrons released out of 3, two are absorbed by cadmium rods. Remaining 1 neutron speed will be controlled by graphite and heavy water.

Edward Narteh said:   9 years ago
What property of water makes it a good moderator?


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