General Knowledge - General Science
Exercise :: General Science - Nuclear Science
| 1. |
Which of the following is used as a moderator in nuclear reactor? |
| A. |
Thorium | | B. |
Graphite | | C. |
Radium | | D. |
Ordinary water |
Answer: Option B
Explanation:
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| 2. |
Which among the following is a positively charged particle emitted by a radioactive element? |
| A. |
Beta ray | | B. |
Alpha ray | | C. |
Cathode ray | | D. |
Gamma ray |
Answer: Option B
Explanation:
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| 3. |
Atoms are composed of |
| A. |
electrons and protons | | B. |
electrons only | | C. |
protons only | | D. |
electrons and nuclei |
Answer: Option D
Explanation:
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| 4. |
In an atomic explosion, enormous energy is released which is due to |
| A. |
conversion of chemical energy into heat energy | | B. |
conversion of mechanical energy into nuclear energy | | C. |
conversion of mass into energy | | D. |
conversion of neutrons into protons |
Answer: Option C
Explanation:
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| 5. |
Isotopes are separated by |
| A. |
crystallisation | | B. |
sublimation | | C. |
distillation | | D. |
filtration |
Answer: Option C
Explanation:
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