A. Good absorber of neutrons
B. Solid substance
C. Poor absorber of neutrons
D. None of these
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Related Mcqs:
- Which of the following is a moderating material used in nuclear reactor ?
- A. Graphite B. Cadmium C. Zircaloy (an alloy of zirconium and aluminium) D. Stainless steel...
- 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...
- 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...
- 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...
- Fuel for a nuclear reactor (thermal) is___________________?
- A. Uranium B. Plutonium C. Radium D. None of these...
- Spent fuel from the nuclear thermal reactor contains__________________?
- A. Fission products B. Plutonium C. Unused fuel D. All A., B. & C....
- Heat is generated in a nuclear reactor (thermal) by_________________?
- A. Combustion of a nuclear fuel e.g. uranium B. Fusion of atoms of uranium C. Absorption of neutrons in uranium atoms D. Fission of U-235 by neutrons...
- Pressure in a Pressurised Water Reactor (PWR) is used for ____________________?
- A. Maintaining constant pressure in the primary cooling circuit under varying loads B. Superheating the steam C. Pressurising the water in the primary coolant circuit D. None of these...
- Thermal nuclear reactors using enriched uranium as fuel contains a maximum of ____________ percent fissile material i.e. U-235?
- A. 1 B. 2 C. 3 D. 7...
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