Mechanical Engineering MCQs

2075 MCQs  (Page 27 of 208)

Attempt Mechanical Engineering Mcqs Quiz
Which of the following are ferrite materials__________________?
A. U233andpu239
B. U
C. U238andpu239
D. U238andth239
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Enriched uranium is one in which__________________?
A. %age of u235 has been artificially in-creased
B. %age of u has been artificially increased
C. %age of u234 has been artificially in-creased
D. Extra energy is pumped from outside
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Which of the following is the heaviest________________?
A. Neutron
B. Proton
C. Atom
D. Electron
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The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is________________?
A. Same
B. Lower
C. Higher
D. Unity
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A nuclear fission produces energy of following order in MeV___________________?
A. 20
B. 200
C. 2000
D. 20,000
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The process by which a heavy nucleus is splitted into two light nuclei is known as_________________?
A. Splitting
B. Fission
C. Fusion
D. Disintegration
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The fast breeder reactor uses the following moderator__________________?
A. demineralised water
B. carbon dioxide
C. heavy water
D. graphite
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The mass number of a substance represents the sum of total number of___________________?
A. Protons and neutrons in an atom
B. Protons and electrons in an atom
C. Neutrons and electrons in an atom
D. Protons and neutrons in a nucleus
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A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is_________________?
A. Same
B. More
C. Less
D. There is no such criterion
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Gas cooled reactor uses following materials as moderator, and coolant____________________?
A. Graphite, c02
B. Graphite, air
C. Heavy water, c02
D. Lead, h2
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Word of the Day
27 Sep
Undesirable
not wanted or desirable because harmful, objectionable, or unpleasant.
غیر مطلوب، ناروا، نامناسب

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