Quantity of fissionable material (i.e. U-235) in natural uranium is _____________ percent?
A. 0.71
B. 6.31
C. 99.29
D. 12.73
Nuclear Power Engineering
Extraction of uranium from its ore is done using ______________ methods?
Extraction of uranium from its ore is done using ______________ methods?
A. Electrometallurgical
B. Pyrometallurgical
C. Chemical
D. Physical beneficiation
The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about ______________ metres/second?
The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about ______________ metres/second?
A. 1100
B. 2200
C. 3300
D. 4400
Unit of radioactivity is__________________?
Unit of radioactivity is__________________?
A. Barn
B. Fermi
C. Angstrom
D. Curie
Gas cooling as compared to water cooling of nuclear reactors___________________?
Gas cooling as compared to water cooling of nuclear reactors___________________?
A. Cannot attain a high temperature
B. Is more efficient as gas has a higher specific heat
C. Can produce only saturated steam for feeding to power turbine
D. None of these
Which of the following nuclear materials is fissile ?
Which of the following nuclear materials is fissile ?
A. Uranium-238
B. Thorium-232
C. Plutonium-239
D. None of these
The ratio of atomic radius to its nuclear radius is about___________________?
The ratio of atomic radius to its nuclear radius is about___________________?
A. 105
B. 108
C. 1012
D. 1015
Isotopes of an element have different_____________________?
Isotopes of an element have different_____________________?
A. Mass number
B. Electronic configuration
C. Nuclear charge
D. Chemical properties
A moderator _____________ the neutrons?
A moderator _____________ the neutrons?
A. Slows down
B. Absorbs
C. Accelerates
D. Reflects
The atomic number of a radioactive element is not changed, when it emits _____________ rays?
The atomic number of a radioactive element is not changed, when it emits _____________ rays?
A. α
B. β
C. γ
D. α & β