Related Questions

The receptionist at a veterinary clinic reviewed the office records and found that 3 out of every 8 animals treated at the clinic during the last 4 months were cats. At this rate, how many cats will be treated during the next 12 weeks if a total 288 animals are treated ?
A 108
B 96
C 36
D 24
__________ extractor is used for the concentration of radioactive nuclear waste.
A Pulsed column
B Seive plate
C Mixer-settler
D Ballman
240 radioactive grams of goo loses half its radioactivity every 10 days. How many grams of radioactive goo is left in 40 days?
A 120
B 60
C 15
D none
The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then
A $${\frac{3}{4}^{{\text{th}}}}$$ of it will disintegrate in two months
B It will completely disintegrate in two months
C It will completely disintegrate in four months
D $${\frac{l}{8}^{{\text{th}}}}$$ of it will remain intact at the end of four months
Which of the following types of nuclear reactors is most prone to radioactive hazards?
A Gas cooled reactor
B Molten Sodium Reactor
C Boiling water reactor
D Pressurised water reactor
World's worst radioactive pollution was caused by nuclear reactor disaster which occured in
A Arizona (U.S.A.)
B Chernobyl (undivided U.S.S.R.)
C Pensylvania (U.S.A.)
D Moscow (U.S.S.R.)
Radioactive solid nuclear wastes are disposed off by
A High temperature incineration
B Pathological incineration
C Pyrolysis
D Underground burial in concrete containers
Which of the following is not a practical method of low level radioactive waste disposal?
A Dilution with inert material
B Discharging to atmosphere through tall stacks after dilution
C Disposing off in rivers & oceans
D Filling in steel crates and shooting it off out of earth
The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is
A Higher cost of nuclear fuel
B High initial cost
C High heat rejection in condenser
D Lower temperature and pressure conditions
Ceramic nuclear metals compared to solid nuclear metals have
A higher melting points
B low strength at high temperature
C more chances of radiation damage
D poorer corrosion resistance

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