Refrigeration and Air Conditioning A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is Carbon dioxide Brine Ammonia Freon Carbon dioxide Brine Ammonia Freon ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called Degree of saturation Relative humidity Humidity ratio Absolute humidity Degree of saturation Relative humidity Humidity ratio Absolute humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In case of sensible cooling of air, the coil efficiency is given by 1 - B.P.F. P.F. - 1 1/ B.P.F. 1 + B.P.F. 1 - B.P.F. P.F. - 1 1/ B.P.F. 1 + B.P.F. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve is used in ________ type of evaporators. DX coil None of these Dry Flooded DX coil None of these Dry Flooded ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system Strong solution to weak solution Strong solution to ammonia vapour Ammonia vapours to weak solution Weak solution to strong solution Strong solution to weak solution Strong solution to ammonia vapour Ammonia vapours to weak solution Weak solution to strong solution ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be 6 5 0.2 1.2 6 5 0.2 1.2 ANSWER DOWNLOAD EXAMIANS APP
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