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
Related Mcqs:
- 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 - In the breeder reactors the generation of new fissionable atom is_________________?
A. at the lower rate than the consumption
B. at a higher rate than the constuption
C. at an equal rate of the consumption
D. depends on other considerations
E. unpredictable - Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_________________?
A. centrifugal
B. axial
C. reciprocation
D. electromagnetic
E. diaphragm - 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 - Hydrogen is preferred as better coolant in comparison to C02 because former_____________________?
A. is lighter
B. is inert
C. has high specific heat
D. is a good conductor
E. all of the above - 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 - The coolant used in boiling water reactor is________________?
A. Co2
B. pressurised water
C. mixture of water and steam
D. liquid metal
E. mercury - Breeder reactor has a conversion ratio of_____________________?
A. unity
B. more than unity
C. less than unity
D. zero
E. infinity - The fast breeder reactor uses the following moderator__________________?
A. demineralised water
B. carbon dioxide
C. heavy water
D. graphite
E. no moderator is used - Pick up the wrong statement Fast breeder reactors__________________?
A. operate at extremely high power densities.
B. are liquid-metal cooled
C. produce more fuel than they consume
D. are unmoderated
E. use water as coolant
