The radioisotope used to study the thyroid gland is__________________?
The radioisotope used to study the thyroid gland is__________________?
A. Iodine
B. Cobalt
C. Iron
D. Carbon
Nuclear Power Engineering
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Sodium melts (at atmospheric pressure) at a temperature of ____________ °C?
Sodium melts (at atmospheric pressure) at a temperature of ____________ °C?A. 58
B. 98
C. 348
D. 588 -
A thermal nuclear reactor compared to a fast breeder reactor ?
A thermal nuclear reactor compared to a fast breeder reactor ?A. Uses slower neutrons for fission
B. Uses faster neutrons for fission
C. Gives higher power density
D. Requires less fuel to run at the same power level -
____________ nuclear reactor does not require a heat exchanger to supply steam to power turbine?
____________ nuclear reactor does not require a heat exchanger to supply steam to power turbine?A. Molten sodium cooled
B. Helium cooled
C. Boiling water
D. Pressurised water -
Which of the following radiations is the least penetrating ?
Which of the following radiations is the least penetrating ?A. α-rays
B. β-rays
C. γ-rays
D. X-rays -
Moderating material used in a thermal-reactor should be a ____________________?
Moderating material used in a thermal-reactor should be a ____________________?A. Good absorber of neutrons
B. Solid substance
C. Poor absorber of neutrons
D. None of these -
Atoms of U-238 and U-235 differ in structure by three_____________________?
Atoms of U-238 and U-235 differ in structure by three_____________________?A. Electrons and three protons
B. Protons
C. Neutrons
D. Electrons -
Nuclear fuel usually used in a Boiling Water Reactor (BWR) is__________________?
Nuclear fuel usually used in a Boiling Water Reactor (BWR) is__________________?A. Plutonium
B. Enriched uranium
C. Natural uranium
D. Thorium -
____________ moderator is used in a fast breeder reactor?
____________ moderator is used in a fast breeder reactor?A. Graphite
B. Heavy water
C. Beryllium
D. No -
Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around _____________ m/sec?
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