A. Th-232
B. U-238
C. U-233
D. None of these
Related Mcqs:
- Thorium-232 (a fertile material) on absorption of a neutron gets converted into ___________ , which is a fissile material?
A. Thorium-233
B. Uranium-235
C. Uranium-233
D. Plutonium-239 - A fertile material is the one, which can be__________________?
A. Converted into fissile material on absorption of neutron
B. Fissioned by slow (thermal) neutrons
C. Fissioned by fast neutrons
D. Fissioned by either slow or fast neutrons - Which is a fertile nuclear fuel ?
A. U-233
B. U-235
C. Pu-239
D. Th-232 - Which of the following is not a good moderating material ?
A. Concrete
B. Boron
C. 18/8 stainless steel
D. All A., B. and C. - Which of the following is not used as a nuclear fuel cladding material ?
A. Zircaloy
B. Cadmium
C. Ceramics
D. Stainless steel - Which of the following is a moderating material used in nuclear reactor ?
A. Graphite
B. Cadmium
C. Zircaloy (an alloy of zirconium and aluminium)
D. Stainless steel - Which of the following is a non-fissile material ?
A. Plutonium-239
B. Uranium-235
C. Uranium-233
D. Thorium-232 - The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be ______________ of its original weight?
A. 1/2
B. 1/4
C. 1/8
D. 1/16 - 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 - The critical mass of a fissionable material can be reduced by__________________?
A. Heating it
B. Cooling it
C. Surrounding it by neutron reflecting material
D. Surrounding it by neutron absorbing material
