Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? R-11 R-12 Ammonia R-22 R-11 R-12 Ammonia R-22 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Normal cooling Sub-cooling or under-cooling None of the listed here Super-cooling Normal cooling Sub-cooling or under-cooling None of the listed here Super-cooling 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 Dirty condenser surface Lack of cooling water Water temperature being high All of these Dirty condenser surface Lack of cooling water Water temperature being high ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During sensible cooling of air, specific humidity Increases Decreases Remains constant None of the listed here Increases Decreases Remains constant None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant supplied to a compressor must be Superheated vapour refrigerant A mixture of liquid and vapour refrigerant None of these Dry saturated liquid refrigerant Superheated vapour refrigerant A mixture of liquid and vapour refrigerant None of these Dry saturated liquid refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Moisture in Freon refrigeration system causes Ineffective refrigeration High power consumption Freezing automatic regulating valve Corrosion of whole system Ineffective refrigeration High power consumption Freezing automatic regulating valve Corrosion of whole system ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS