A. Mass transfer between a gas and a liquid
B. Absorption with chemical reaction
C. Heat transfer in turbulent flow
D. Heat transfer in laminar flow
A. Alcohol
B. Distilled water
C. Salt
D. Fruits jam
A. (ΔT)2
B. (ΔT)4
C. (ΔT)3
D. √(ΔT)
A. Increases the heating area required
B. Reduces the economy
C. Both A. and B.
D. Decreases the heating area required
A. 0.001
B. 0.72
C. 70
D. 150
A. A red hot steel slab (having outside surface temperature as 1300°C) exposed to the
atmospheric air at 35°C
B. 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe
exposed to atmospheric air at 35°C
C. Boiling brine kept in open vessel when the bottom surface temperature of the vessel is
maintained constant at 180°C
D. A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper
pipe exposed to atmospheric air at 35°C
A. Grashoff
B. Biot
C. Stanton
D. Reynolds