Mechanical Engineering MCQs

2075 MCQs  (Page 33 of 208)

Attempt Mechanical Engineering Mcqs Quiz
Effective moderators are those materials which contain____________________?
A. Light weight atoms
B. Heavy weight atoms
C. Critical atoms
D. Zero weight atoms
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A fast breeder reactor uses_______________?
A. 90% u-235
B. U-238
C. U-235
D. Pu-239
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Pressurised water reactor is designed________________?
A. For boiling pi water in the core
B. To use liquid sodium metal as coolant
C. To use intermediate coolant
D. To prevent the water coolant from boiling in the core
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In boiling water reactor, moderator is__________________?
A. Coolant itself
B. Ferrite rod
C. Graphite rod
D. Liquid sodium metal
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Half life of a radioactive isotope corresponds to the time required for half of the following to decay__________________?
A. electrons
B. protons
C. neutrons
D. nulceus
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Artificial radioactive isotopes find application in________________?
A. power generation
B. nucleonic devices
C. nuclear fission
D. nuclear fusion
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A fast breeder reactor uses following as fuel_________________?
A. Enriched uranium
B. Plutonium
C. Thorium
D. U235
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A fast breeder reactor__________________?
A. Uses graphite rods as moderator
B. Has powerful moderator
C. Has no moderator
D. Uses ferrite material as moderator
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Each fission of U235 produces following number of fast neutrons per fission________________?
A. 1 neutron
B. 1 — neutrons
C. 1 – 2 neutrons
D. 2 — neutrons
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For economical operation of a nuclear plant__________________?
A. Used fuel should be reprocessed
B. Moderator should be used
C. Coolant should be employed
D. Control rods should be used
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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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