Nuclear Power Engineering
The emission of an a-particle causes the resultant nucleus to have

Less atomic weight and more atomic number
Less atomic weight and less atomic number
More atomic weight and less atomic number
None of these

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Nuclear Power Engineering
An ideal coolant for a nuclear reactor should

Be capable of attaining high temperature, only when it is pressurised
Be free from radiation damage and non-corrosive
Be a good absorber of neutrons
Have high density, but low heat transfer co-efficient

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