Related Mcqs:

1. 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

2. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of ____________ percent of U-235 (i.e. fissile material)?

   A. 15
   B. 45
   C. 65
   D. 85

3. Thermal nuclear reactors using enriched uranium as fuel contains a maximum of ____________ percent fissile material i.e. U-235?

   A. 1
   B. 2
   C. 3
   D. 7

4. “Critical mass” is the minimum mass of nuclear fissile material required for the__________________?

   A. Sustainment of chain reaction
   B. Power generation on commercial scale
   C. Economic power generation
   D. None of these

5. Which is not a fissile nuclear material ?

   A. U-233
   B. U-235
   C. U-238
   D. Pu-239

6. “Critical mass” is the minimum mass of nuclear fissile material required for the_______________________?

   A. Sustainment of chain reaction
   B. Power generation on commercial scale
   C. Economic power generation
   D. None of these

7. Which of the following nuclear materials is fissile ?

   A. Uranium-238
   B. Thorium-232
   C. Plutonium-239
   D. None of these

8. 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.

9. Which of the following is not used as a nuclear fuel cladding material ?

   A. Zircaloy
   B. Cadmium
   C. Ceramics
   D. Stainless steel

10. 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