Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Sulphur dioxide R-12 Ammonia Carbon dioxide Sulphur dioxide R-12 Ammonia Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve operates on the changes in the None of these Temperature of the evaporator Degree of superheat at exit from the evaporator Pressure in the evaporator None of these Temperature of the evaporator Degree of superheat at exit from the evaporator Pressure in the evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be All of these Water temperature being high Lack of cooling water Dirty condenser surface All of these Water temperature being high Lack of cooling water Dirty condenser surface ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the Expansion valve to the evaporator Condenser to the evaporator Condenser to the expansion valve Evaporator to the thermostat Expansion valve to the evaporator Condenser to the evaporator Condenser to the expansion valve Evaporator to the thermostat ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor) 1/ B.P.F. 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. ANSWER DOWNLOAD EXAMIANS APP
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
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