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.Management Sciences
Category: Nuclear Power Engineering
Research reactors are normally meant for_____________________?
A. Producing high neutron flux 1012-1013 neutrons/cm2, sec and studying the effect of neutron
bombardment on different materials
B. Accelerating the neutrons
C. Power generation
D. None of these
Which of the following may be used to measure the rate of nuclear disintegration ?
A. Geiger-Muller Counter
B. Cyclotron
C. Cold chamber
D. Mass spectrograph
Thorium-232 is converted into uranium-233 in a/an ______________ nuclear reactor?
A. Thermal
B. Fast breeder
C. Heavy water moderated
D. Enriched uranium
Atoms of U-238 and U-235 differ in structure by three_____________________?
A. Electrons and three protons
B. Protons
C. Neutrons
D. Electrons
The new nucleus formed after β-decay of a radioactive element has___________________?
A. Less atomic number
B. Less atomic weight
C. More atomic number
D. More atomic weight
Spent fuel from the nuclear thermal reactor contains__________________?
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
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