Related Questions

Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.
A U-235
B U-233
C U-238
D PU-239
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 of the above
In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous
A Uranium oxide
B Uranium hexaflouride
C Uranium carbide
D Uranium sulphate
Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is
A 0.1
B 1
C 3
D 12
A metal with specific gravity of 'a' floating in a fluid of same specific gravity 'a' will
A Sink to bottom
B Float over fluid
C Partly immersed
D Be fully immersed with top surface at fluid surface
A metal with specific gravity of o floating in a fluid of same specific gravity a will
A sink to bottom
B float over fluid
C partly immersed
D be fully immersed with top surface at fluid surface
Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of
A Powder & grannular solids
B Liquids
C Low melting point semi-solids
D All of the above
Plutonium
A is recovered from spent fuel from thermal nuclear reactor
B has much lower melting point (640°C) compared to thorium (1690°C)
C both A & B
D neither A nor B
Plutonium is produced
A As basic raw material
B By neutron irradiation of Uz
C By neutron irradiation of thorium
D Artificially
The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.
A Zero
B Minimum
C Maximum
D None of these

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