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Nuclear Engineering Interview Test
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Avg score: 56% • Most missed: “_________ moderator is used in a fast breeder reactor.”

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Nuclear Engineering Interview Test
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25 Questions

1. Use of molten metal as a coolant in fast breeder reactor helps in
2. A radioactive substance does not emit
3. Primary purpose of a __________ nuclear reactor is to supply a high neutron flux of the order of 1013 to 1014 neutrons/cm2 second.
4. Which of the following radiations is the least penetrating?
5. Which of the following accounts for the maximum energy release in the nuclear fission process?
6. Heavy water plant is not located at
7. Nuclear fuel usually used in a Boiling Water Reactor (BWR) is
8. Which of the following ores contains maximum percentage of uranium?
9. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
10. Extraction of uranium from its ore is done by __________ method.
11. The disintegration rate of a radioactive element
12. Radioactivity of an isotope is expressed in
13. Which of the following is a non-fissile material?
14. Water is a better coolant than a gas (like CO2, He, N2 etc.), because it
15. Extraction of uranium from its ore is done using __________ methods.
16. The half life period of a radiactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm.
17. __________ gas is normally not used as a coolant in a nuclear reactor, because of its high neutron capture cross-section.
18. A control rod
19. A pressurised water reactor (PWR) uses pressurised water as a
20. Hydrogen differs from deuterium in __________ properties.
21. Which of the following is the most harmful for the human being?
22. __________ have the same mass number, but different nuclear charge.
23. Pick out the wrong statement.
24. Uranium percentage in monazite sand is about
25. A thermal nuclear reactor compared to a fast breeder reactor

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