Refrigeration and Air Conditioning In S.J. unit, one ton of refrigeration is equal to 21 kJ/ min 420 kJ/ min 210 kJ/ min 840 kJ/ min 21 kJ/ min 420 kJ/ min 210 kJ/ min 840 kJ/ min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A bootstrap air cooling system has One heat exchanger Two heat exchangers Four heat exchangers Three heat exchangers One heat exchanger Two heat exchangers Four heat exchangers Three heat exchangers ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called Absolute humidity Relative humidity Degree of saturation Humidity ratio Absolute humidity Relative humidity Degree of saturation Humidity ratio ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Ammonia Sulphur dioxide Carbon dioxide R-12 Ammonia Sulphur dioxide Carbon dioxide R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression refrigeration system, a throttle valve is used in place of an expander because The positive work in isentropic expansion of liquid is very small It improves the C.O.P., as the condenser is small It leads to significant cost reduction It considerably reduces mass of the system The positive work in isentropic expansion of liquid is very small It improves the C.O.P., as the condenser is small It leads to significant cost reduction It considerably reduces mass of the system ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system will be 43834 3 4 43833 43834 3 4 43833 ANSWER DOWNLOAD EXAMIANS APP
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