Heat Transfer
Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer.

Stantan
Grashoff
Biot
Reynolds

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
In a shell and tube heat exchanger,

The temperature drop is inversely proportional to the resistance across which the drop occurs
There is no relationship between temperature drop and resistance
The temperature drops in the two fluids and the wall are proportional to individual resistances
The relationship is not generalised

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
In a gas-liquid shell and tube heat exchanger, the

All of these
Gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature
Presence of a non-condensible gas decreases the condensing film co-efficient
Gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Heat Transfer