53.SSC JE (ME)II Refrigeration and Air Conditioning Booster Quiz-6

Sub-cooling in a vapour compression refrigeration system ______ enthalpy of liquid refrigerant below saturation level.

In a refrigeration plant, removal of air to maintain pressure is termed as:

In Bell-Coleman cycle, the refrigeration effect happens at constant:

The enthalpies at the beginning of compression, at the end of compression and at end of condensation are 180 kJ/kg, 200 kJ kg and 90 kJ/kg respectively. Determine COP of the vapour compression refrigeration system __________.

The gas refrigeration cycle is preferred in aircraft refrigeration because of _________.

In a triple fluid vapour absorption refrigeration system, hydrogen gas is used to:

The pressure exerted by dry air is 70% of that of atmospheric pressure. If p_vs=0.6 bar, the relative humidity is

In refrigerant system thermostatic expansion valve is used to maintain _______.