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Nuclear Power Engineering

Nuclear Power Engineering
The mass number of an element is not changed, when it emits __________ radiations.

β & γ
α, β, & γ
γ & α
α & β

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Nuclear Power Engineering
The main ore of thorium is

Monazite sand
Galena
Pitchblende
Limonite

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Nuclear Power Engineering
Fast breeder test reactor at Kalpakkam is designed for using

U-238 as a fertile material
Helium as a coolant
Uranium ore directly as a fuel
Thorium as a fertile material

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Nuclear Power Engineering
Thorium metal

Resembles steel in appearance
All of these
Is less hard (in the range of silver)
Is highly ductile

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Nuclear Power Engineering
The disintegration rate of a radioactive element

May increase or decrease depending on the material
Progressively decreases
Progressively increases
Remains constant throughout

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Nuclear Power Engineering
Pressure in a Pressurised Water Reactor (PWR) is used for

Pressurising the water in the primary coolant circuit
Maintaining constant pressure in the primary cooling circuit under varying loads
Superheating the steam
None of these

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