Heat and Mass Transfer
According to Newton's law of cooling, the heat transfer from a hot body to a cold body is

Both (A) and (B)
Either (A) or (B)
Directly proportional to the surface area
Directly proportional to the difference of temperatures between the two bodies

ANSWER DOWNLOAD EXAMIANS APP

Heat and Mass Transfer
A steam pipe is to be insulated by two insulating materials put over each other. For best results

Whether to put inferior OIL over pipe or the better one would depend on steam temperature
Inferior insulation should be put over pipe and better one over it
Better insulation should be put over pipe and better one over it
Both may be put in any order

ANSWER DOWNLOAD EXAMIANS APP