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 4 of 5.

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

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.

Anurag Ranjan said:   8 years ago
Beryllium and heavy water is also used as moderate of nuclear reactor.

Harsh said:   7 years ago
Heavy water is used for this.

Pradeep Singh choudhary said:   7 years ago
But mostly used moderator is light water. Which is used upto 75%.

Vansh said:   7 years ago
Graphite is a naturally-occurring form of crystalline carbon. It is a native element mineral found in metamorphic and igneous rocks. Graphite is a mineral of extremes. It is extremely soft, cleaves with very light pressure, and has a very low specific gravity.

Pvkatgi said:   6 years ago
In around 75% nuclear reactors of world normal water is used as a moderator.
(1)

Vineet said:   6 years ago
Hard water is generally used.
(1)

Girish said:   6 years ago
Ordinary water used 75%.
(1)

R Mandal said:   5 years ago
"Light water" is the most commonly used moderator (roughly 75% of the world's reactors) although the term is slightly ambiguous, usually meaning natural freshwater, but could also refer to actual light water. Solid graphite (20% of reactors) and heavy water (5% of reactors) are the main alternatives.
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