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.Management Sciences
Category: Nuclear Power Engineering
The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the________________?
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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
Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of___________________?
A. High carbon steel
B. Molybdenum
C. Zircaloy
D. Boron or cadmium
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
The most commonly used nuclear fuel in boiling water reactor is___________________?
A. Enriched uranium
B. Natural uranium
C. Plutonium
D. Monazite sand
Emission of β-particles during radioactive decay of a substance is from__________________?
A. Innermost shell
B. Nucleus
C. Outermost shell
D. None of these
____________ moderator is used in a fast breeder reactor?
A. Graphite
B. Heavy water
C. Beryllium
D. No
Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor ?
A. Molten sodium cooled
B. CO2 gas cooled
C. Pressurised water
D. Boiling water
Which of the following undergoes fission reaction easily ?
A. U-235
B. U-238
C. Th-232
D. None of these
Which of the following isotopes is not present in natural uranium?
A. U-238
B. U-234
C. U-235
D. U-232
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