Which of the following is used as a moderator in nuclear reactor?
A. Thorium
B. Graphite
C. Radium
D. Ordinary water
Answer: Option D
Solution (By Examveda Team)
"Light water" is the most commonly used moderator (roughly 75% of the world's reactors) although the term is slightly ambiguous, usually meaning natural fresh water, but could also refer to deuterium-depleted water.This Question Belongs to General Knowledge >> General Science
Graphite and D2O both are used as moderators in nuclear reactor
Heavy water is the moderator.
Moderater produced to thoriam, so thoriam is a right answer.
Option D was strong, is Graphite.
why not 'Graphite'
The answer D) ordinary water is wrong. The moderator used in nuclear reactor are Graphite & Heavy water(D2O)
Control rod is used to control the chain reaction by absorbing neutron produce in a chain reaction .ex boron , cobalt
Moderator is used in a chain reaction to moderate or slow down the producing neutron. ex graphite , heavy water.
Niloy Roy sir..Ordinary water is correct.it can't be Graphite..It should be Ordinary water or heavy water.
It should b -- "B"