freezing at the expansion valve

restriction to refrigerant flow

corrosion of steel plates

all of these

The value of C.O.P. is always greater than one.

In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour.

The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region.

none of the above

remains constant

increases

decreases

none of these

irregular surfaces

non-uniform temperature surfaces

one dimensional cases only

two dimensional cases only

Stanton number

Biot number

Peclet number

Grashoff number