A. ordinary fluid
B. heavy water
C. molten lead
D. hydrogen gas
E. none of the above
Related Mcqs:
- In boiling water reactor, moderator is__________________?
A. coolant itself
B. ferrite rod
C. graphite rod
D. liquid sodium metal
E. blanket of thorium - The coolant used in boiling water reactor is________________?
A. Co2
B. pressurised water
C. mixture of water and steam
D. liquid metal
E. mercury - Gas cooled reactor uses following materials as moderator, and coolant____________________?
A. graphite, C02
B. graphite, air
C. heavy water, C02
D. lead, H2
E. concrete, N2 - A boiling water reactor uses following as fuel________________?
A. enriched uranium
B. plutonium
C. thorium
D. U
E. natural uranium. - Boiling water reactor employs__________________?
A. boiler
B. direct cycle of coolant system
C. double circuit system of coolant cycle
D. multi pass system
E. single circuit system - The fast breeder reactor uses the following moderator__________________?
A. demineralised water
B. carbon dioxide
C. heavy water
D. graphite
E. no moderator is used - A fast breeder reactor uses following as fuel_________________?
A. enriched uranium
B. plutonium
C. thorium
D. U235
E. natrual uranium - The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is________________?
A. same
B. lower
C. higher
D. unity
E. higher/lower depending on the size of reactor - The energy produced by a thermal reactor of same size as a breeder reactor is__________________?
A. almost same
B. slightly more
C. slightly less
D. much less
E. much more. - Which of the following is more appropriate for a moderator. One which_________________?
A. does not absorb neutrons
B. absorbs neutrons
C. accelerates neutrons
D. eats up neutrons
E. regenerates neutrons
