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.Management Sciences
Category: Nuclear Power Engineering
Which of the following may not need a moderator ?
A. Candu reactor
B. Fast breeder reactor
C. Homogeneous reactor
D. Pressurised water reactor
The decay product of tritium (a beta emitter) is_________________?
A. Lithium
B. Helium
C. Deuterium
D. Hydrogen
Percentage of the heavy water in ordinary water is around ____________________?
A. 0.015
B. 7.54
C. 0.71
D. 32.97
Thorium can be converted into U-233 in a _____________ reactor?
A. Liquid metal cooled
B. Fast breeder
C. Thermal
D. Swimming pool
The most abundant isotope of natural uranium is ___________________?
A. 92U238
B. 92U235
C. 92U234
D. None of these
Biological shield is provided in a nuclear power reactor to protect the ______________ from radiation damage?
A. Fuel elements
B. Operating personnels
C. Walls of the reactor
D. None of these
The critical mass of a fissionable material can be reduced by__________________?
A. Heating it
B. Cooling it
C. Surrounding it by neutron reflecting material
D. Surrounding it by neutron absorbing material
“Critical mass” is the minimum mass of nuclear fissile material required for the_______________________?
A. Sustainment of chain reaction
B. Power generation on commercial scale
C. Economic power generation
D. None of these
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