Which is used as a coolant in nuclear reactor due to its high capture cross-section ?

Related Mcqs:

1. An ideal coolant for a nuclear reactor should ________________?

   A. Be a good absorber of neutrons B. Be capable of attaining high temperature, only when it is pressurised C. Have high density, but low heat transfer co-efficient D. Be free from radiation damage and non-corrosive...

2. Pressure of CO2 gas (which is a coolant) in the Calder-Hall nuclear reactor is ______________ kgf/cm2?

   A. 0.2 B. 7 C. 35 D. 50...

3. ‘Light water’ used as a coolant in nuclear reactor is nothing but______________________?

   A. Ordinary water B. Mildly acidic (pH = 6) water C. Mildly alkaline (pH = 8) water D. None of these...

4. 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...

5. 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...

6. Liquid metal (e.g., molten sodium) is preferred as a coolant in case of a/an ______________ reactor?

   A. Homogeneous B. Graphite moderated C. Fast breeder D. Enriched uranium (3% U-235) fuelled...

7. Use of molten metal as a coolant in fast breeder reactor helps in_________________?

   A. Rapid heat transfer from the core B. Accelerating the reaction rate in the core C. Breeding neutrons D. Accelerating the neutrons...

8. Molten sodium is used as a coolant in a fast breeder reactor, because of its_________________?

   A. Excellent moderating properties B. Neutron breeding capability C. Faster heat removal capability from the core D. Capability to increase the reaction rate in the core...

9. Molten sodium (as a coolant in fast breeder reactor) ?

   A. Can’t attain high temperature at normal pressure B. Is not at all corrosive, even at a higher temperature C. Is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water D. None of these...

10. Coolant used in a boiling water reactor is________________?

    A. Hydrogen gas B. Water C. Steam D. A mixture of water & steam...