The half life period of a radioactive element is 100 days. After 400 days, one gm of the element will be reduced to ______________ gm?
A. 1/4
B. 1/8
C. 1/2
D. 1/16
Nuclear Power Engineering
The mass number of an element is not changed, when it emits _______________ radiations?
The mass number of an element is not changed, when it emits _______________ radiations?
A. α & β
B. β & γ
C. γ & α
D. α, β, & γ
The half life period of a radioactive element depends upon the___________________?
The half life period of a radioactive element depends upon the___________________?
A. Temperature
B. Pressure
C. Amount of element present
D. None of these
The half life period of a radioactive element depends on its _______________________?
The half life period of a radioactive element depends on its _______________________?
A. Temperature
B. Pressure
C. Amount
D. None of these
Biological shield is provided in a nuclear power reactor to protect the ______________ from radiation damage?
Biological shield is provided in a nuclear power reactor to protect the ______________ from radiation damage?
A. Fuel elements
B. Operating personnels
C. Walls of the reactor
D. None of these
H2 is a better coolant than CO2, due to it‟s relatively____________________?
H2 is a better coolant than CO2, due to it‟s relatively____________________?
A. Lower density
B. Higher specific heat
C. Non-reactivity to uranium
D. Lower neutron capture cross-section
Which of the following accounts for the maximum energy release in the nuclear fission process ?
Which of the following accounts for the maximum energy release in the nuclear fission process ?
A. Kinetic energy of fission products
B. Radioactive decay of fission products
C. Instantaneous release of γ-rays
D. Kinetic energy of neutrons
The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
A. 159
B. 1837
C. 2537
D. 10000
In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous ________________?
In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous ________________?
A. Uranium oxide
B. Uranium hexafluoride
C. Uranium carbide
D. Uranium sulphate
Enrichment of uranium is done to increase the concentration of ______________ in the natural uranium?
Enrichment of uranium is done to increase the concentration of ______________ in the natural uranium?
A. U-238
B. U-233
C. U-235
D. Pu-239