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.Management Sciences
Category: Nuclear Power Engineering
In a pressurised water reactor (PWR), the___________________?
A. Fuel is natural uranium and heavy water acts both as moderator & coolant
B. Coolant water boils in the core of the reactor
C. Coolant water is pressurised to prevent bulk boiling of water in the core
D. Use of moderator is not required
Tarapur (INDIA) atomic power station____________________?
A. Has two boiling water reactors of American design
B. Has an installed capacity of 400 MW
C. Is the first power reactor in India, which became critical in 1969
D. All A., B. and C.
Critical energy should be _______________ the neutron binding energy of the atom in order to initiate a nuclear fission?
A. Equal to
B. Less than
C. More than
D. Either more or less
Energy equivalent to one atomic mass unit (amu) is ______________ MeV?
A. 9.31
B. 93.1
C. 931
D. 9310
Thermal shield is used in high powered nuclear reactors to__________________?
A. Protect the walls of the reactor from radiation damage
B. Absorb the fast neutrons
C. Slow down the secondary neutrons
D. Protect the fuel element from coming in contact with the coolant
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
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