Hydrogen is preferred as better coolant in comparison to C02 because former_____________________?

Related Mcqs:

1. Boiling water reactor uses the following as moderator, coolant and working fluid________________?

   A. ordinary fluid
   B. heavy water
   C. molten lead
   D. hydrogen gas
   E. none of the above

2. Which of the following can be used as a coolant in nuclear plant________________?

   A. light or heavy water
   B. molten lead
   C. carbon dioxide
   D. freon
   E. carbon tetrachloride

3. Breeder reactors employ liquid metal coolant because it_______________?

   A. acts as good moderator
   B. produces maximum steam
   C. transfers heat from core at a fast rate
   D. breeds neutrons
   E. increases rate of reaction in core

4. The coolant used in boiling water reactor is________________?

   A. Co2
   B. pressurised water
   C. mixture of water and steam
   D. liquid metal
   E. mercury

5. The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is__________________?

   A. higher cost of nuclear fuel
   B. high initial cost
   C. high heat rejection in condenser
   D. lower temperature and pressure condi-tions
   E. nuclear hazard risk

6. The number of isotopes of hydrogen are _________________?

   A. 1
   B. 2
   C. U
   C. 3
   E. 0

7. The mass number of a substance represents the sum of total number of___________________?

   A. protons and neutrons in an atom
   B. protons and electrons in an atom
   C. neutrons and electrons in an atom
   D. protons and neutrons in a nucleus
   E. protons and electrons in a nucleus

8. Ferrite material is____________________?

   A. the most fissionable material
   B. the basic fuel for nuclear paints
   C. basic raw material for nuclear plants
   D. the material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material
   E. none of the above

9. A reactor capable of converting a ferrite material into fissile isotopes is called____________________?

   A. regenerative reactor
   B. fast breeder reactor
   C. breeder reactor
   D. boiling water reactor
   E. ferrite reactor

10. Supertheated steam is generated in following reactor________________?

    A. boiling water
    B. gas cooled
    C. pressurised water
    D. all of the above
    E. none of the above