A. Coolant are different materials
B. Coolant are present in different phases (e.g., heavy water and graphite)
C. Fuel are present in different phases (e.g. uranium and heavy water)
D. None of these
Related Mcqs:
- ____________ moderator is used in a fast breeder reactor?
A. Graphite
B. Heavy water
C. Beryllium
D. No - Which of the following is not used as a moderator in nuclear reactor ?
A. Molten sodium
B. Light water
C. Beryllium
D. Boron hydride - 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 - Which of the following may not need a moderator ?
A. Candu reactor
B. Fast breeder reactor
C. Homogeneous reactor
D. Pressurised water reactor - Ordinary water is not used as a moderator because, it___________________?
A. Has a low absorption cross-section
B. Has a low scattering cross-section
C. Absorbs neutrons
D. Does not absorb neutrons - A moderator _____________ the neutrons?
A. Slows down
B. Absorbs
C. Accelerates
D. Reflects - Heavy water is used as a moderator in a _____________________?
A. Pressurised water reactor (PWR)
B. Boiling water reactor (BWR)
C. Candu reactor
D. Molten sodium cooled reactor - The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the________________?
A. Fuel cost per unit power generated is less
B. Thermal efficiency of the former is higher
C. Maintenance cost of the former is less
D. None of these
