Nuclear Power Engineering MCQ Questions & Answers

61

The decay product of tritium (a beta emitter) is

A) Lithium B) Helium C) Deuterium D) Hydrogen

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Answer & Solution

Answer: Option B

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62

Molten sodium (as a coolant in fast breeder reactor)

A) Can't attain high temperature at normal pressure B) Is not at all corrosive, even at a higher temperature C) Is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water D) None of these

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Answer: Option C

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63

Pick out the wrong statement.

A) Α-particle emission from a radioactive element makes it electrically negative B) Β-particle emission from a radioactive element makes it electrically positive C) A radioactive element having a half life period of 20 years will completely disintegrated in 40 years D) The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

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Answer: Option C

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64

Which of the following factors is the most important in the site selection for a nuclear power plant?

A) Absence of earthquake prone zone in nearby areas B) Abundant availability of water C) Remotely located from residential areas D) Proximity to fuel source

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Answer: Option A

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65

One 'amu' is equivalent to

A) 9.31 MeV B) 931 eV C) 931 Mev D) 931J

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Answer: Option C

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66

Which one is radioactive in nature?

A) Helium B) Deuterium C) Heavy hydrogen D) Tritium

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Answer: Option D

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67

Which of the following radiations is the least penetrating?

A) α-rays B) β-rays C) γ-rays D) X-rays

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Answer: Option A

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68

Secondary cooling circuit is a must in molten sodium cooled fast breeder reactor for

A) Achieving high degree of superheat in the steam B) Faster heat removal rate from the core C) Lowering the coolant circulation pressure D) Avoiding the mixing of water with radioactive sodium, as it may cause explosion

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Answer: Option D

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69

If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same istotope will be __________ days.

A) 5 B) 10 C) 20 D) 30

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Answer: Option B

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70

The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the

A) Fuel cost per unit power generated is less B) Thermal efficiency of the former is higher C) Maintenance cost of the former is less D) None of these

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Answer: Option A

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Nuclear Power Engineering MCQ Questions & Answers | Chemical Engineering