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.Management Sciences
Category: Nuclear Power Engineering
Spent fuel from the nuclear thermal reactor contains__________________?
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A. Fission products
B. Plutonium
C. Unused fuel
D. All A., B. & C.
Heavy water is preferred over ordinary water as a coolant, because it?
A. Acts both as an efficient coolant as well as a moderator
B. Can be heated to a higher temperature without pressurizing
C. Is less prone to radiation damage
D. All A., B. and C.
Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around _____________ m/sec?
A. 1
B. 2200
C. 3 × 1011
D. 9 × 1021
How many atoms are present in one gm-atom of an element ?
A. 2 × 1023
B. 6 × 1023
C. 6 × 1032
D. 5 × 105
What is the average life of a radioactive atom having a ‘half life period’ of T ?
A. 1.44 T
B. 0.144 T
C. 14.4 T
D. 2T
Which of the following accounts for the maximum energy release in the nuclear fission process ?
A. Kinetic energy of fission products
B. Radioactive decay of fission products
C. Instantaneous release of γ-rays
D. Kinetic energy of neutrons
Fast breeder reactors are most usable in India, because of our largest _____________ deposits?
A. Thorium
B. Plutonium
C. Uranium
D. None of these
Which is the most commonly used molten metal for cooling of nuclear reactors ?
A. Calcium
B. Sodium
C. Mercury
D. Zinc
Which of the following is not a good moderating material ?
A. Concrete
B. Boron
C. 18/8 stainless steel
D. All A., B. and C.
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