Two

Eight

Twenty

None of these

Heptane number

Cetane number

Octane number

All the above

Cadmium

Boron

Indium

All the above

It is the thickness of the material at which the radiating material is reduced to its half-life.

It is the one half of the thickness of the material required to reduce radiation entering it.

It is the thickness of the material at which the intensity of radiation entering it is reduced by one half

None of these

Centrifugal compressors

Axial flow compressors

Both (A) and (B)

None of these