The radioisotope used to study the thyroid gland is__________________?
A. Iodine
B. Cobalt
C. Iron
D. Carbon
Nuclear Power Engineering
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