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Saturday, November 26, 2016

General Science - Nuclear Science

1.Which of the following is used as a moderator in nuclear reactor?
Thorium Graphite Radium Ordinary water

2.Which among the following is a positively charged particle emitted by a radioactive element?
Beta ray Alpha ray Cathode ray Gamma ray

3.In an atomic explosion, enormous energy is released which is due to
conversion of chemical energy into heat energy conversion of mechanical energy into nuclear energy conversion of mass into energy conversion of neutrons into protons

4. Isotopes are separated by
crystallisation sublimation distillation filtration

5.Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?
Thorium Radium Plutonium Radan

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