Deaeration (removal of O2) of water is done by_________________?

A. Dew point
B. Wet bulb
C. Both A & B
D. Neither A nor B

A. Are different
B. Are same
C. Depend on the humidity of the gas
D. None of these

A. Providing irregular grain size
B. Providing minimum percentage of voids
C. Having maximum possible points of contact
D. None of these

A. 1
B. ∞
C. 0.5
D. 2

A. (De.t)1/2
B. (De/t)1/2
C. (4De/πt)1/2
D. (4De/t)