Heat Transfer
In sub-cooled boiling,

Bubbles from heating surface are absorbed by the mass of the liquid
Temperature of the heating surface is more than the boiling point of the liquid
Temperature of the heating surface is less than the boiling point of the liquid
Very large vapour space is necessary

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
In a heat exchanger, one transfer unit means

The size of the exchanger in which heat transfer rate is 1 kcal/hr
None of these
Both A and B
A section of the exchanger in which change in temperature of one stream equals the average driving force in the section

ANSWER DOWNLOAD EXAMIANS APP