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 2 of 5.

Zahid said:   8 years ago
But ordinary water is not used as moderator there are many types moderators like graphite, cd road as well as d2o.

Satinath Maity said:   9 years ago
I think ordinary water is more strong answer than graphite.

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

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.

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

Sss said:   9 years ago
@S Kumur.

Why cadmium rods are used?

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

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

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

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


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