A. 0.71
B. 6.31
C. 99.29
D. 12.73
Related Mcqs:
- 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 - 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 - U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about _____________ percent?
A. 85
B. 50
C. 3
D. 97 - 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 - 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 - 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 - Uranium Corporation of India Limited (UCIL) engaged in the mining & concentration of uranium ore is located at_______________?
A. Alwaye (in Kerala)
B. Jadugoda (in Jharkhand)
C. Kalpakkam (in Tamilnadu)
D. Gopalpur coast (in Orissa) - Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher _____________________?
A. Melting point, hence can be subjected to higher temperature
B. Density; hence core volume for a given power output would be smaller
C. Resistance to effects of irradiation
D. All A., B. and C. - Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?
A. < 0.025
B. > 1
C. 1-25
D. > 200 - 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
