A. Graphite
B. Cadmium
C. Zircaloy (an alloy of zirconium and aluminium)
D. Stainless steel
Related Mcqs:
- Moderating material used in a thermal-reactor should be a ____________________?
A. Good absorber of neutrons
B. Solid substance
C. Poor absorber of neutrons
D. None of these - Which of the following is not a good moderating material ?
A. Concrete
B. Boron
C. 18/8 stainless steel
D. All A., B. and C. - A thermal nuclear reactor compared to a fast breeder reactor ?
A. Uses slower neutrons for fission
B. Uses faster neutrons for fission
C. Gives higher power density
D. Requires less fuel to run at the same power level - Candu reactor is a ______________ nuclear reactor?
A. Natural uranium fuelled heavy water cooled & moderated
B. Highly enriched uranium (85% U-235) fuelled
C. Homogeneous
D. Fast breeder - Which of the following is a fuel for a fusion reactor (thermonuclear reactor) ?
A. Deuterium and tritium
B. U-233
C. Thorium
D. Heavy water - Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor ?
A. Molten sodium cooled
B. CO2 gas cooled
C. Pressurised water
D. Boiling water - Which of the following is not used as a moderator in nuclear reactor ?
A. Molten sodium
B. Light water
C. Beryllium
D. Boron hydride - Nuclear fuel usually used in a Boiling Water Reactor (BWR) is__________________?
A. Plutonium
B. Enriched uranium
C. Natural uranium
D. Thorium - Heavy water (D2O) in a nuclear reactor serves as a_______________?
A. Coolant
B. Moderator
C. Both A. & B.
D. Neutron absorber - Thorium-232 is converted into uranium-233 in a/an ______________ nuclear reactor?
A. Thermal
B. Fast breeder
C. Heavy water moderated
D. Enriched uranium
