Heat Transfer MCQs

Pick out the wrong statement.

Water is normally used as a coolant in the heat exchange equipments mainly because ofits

The overall heat transfer co-efficient for a shell and tube heat exchanger for clean surfaces is U0 = 400 W/m2.K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m2.K. The overall heat transfer co-efficient at this time is

Forced circulation evaporators are normally used for concentrating liquids having

A __________ evaporator employs an annular downtake.

During crystallisation, formation of crystal can occur in __________ solution only.

Analogy between mass and heat transfer is not applicable in case of

Heat transfer rate per unit area is called

In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of