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Power Plant Engineering

Power Plant Engineering
Half life of a radioactive isotope corresponds to the time required for half of the following to decay

Atom
Neutrons
Electrons
Protons

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Power Plant Engineering
Economizer is used to heat

flue gases
Feed water
Air
All mentioned

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Power Plant Engineering
A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is

More
Less
Same
There is no such criterion

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Power Plant Engineering
A fission chain reaction in uranium can be developed by

Slowing down fast neutrons so that Uz fission continues by slow motion neutrons
Using moderator
Accelerating fast neutrons
Absorbing all neutrons

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Power Plant Engineering
A boiling water reactor uses following as fuel

Enriched uranium
Plutonium
U
Thorium

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Power Plant Engineering
U238 will undergo fission by

High energy (fast) neutrons alone
Either fast or slow neutrons
Low energy (slow) neutrons alone
Medium energy neutrons

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