Refrigeration and Air Conditioning Carbon dioxide is Colourless All of the listed here Non-flammable Odourless Colourless All of the listed here Non-flammable Odourless 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 It considerably reduces mass of the system It leads to significant cost reduction The positive work in isentropic expansion of liquid is very small It improves the C.O.P., as the condenser is small It considerably reduces mass of the system It leads to significant cost reduction The positive work in isentropic expansion of liquid is very small It improves the C.O.P., as the condenser is small ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about 2.15 1 5.12 1.25 2.15 1 5.12 1.25 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 None of the listed here Sub-cooling or under-cooling Super-cooling Normal cooling None of the listed here Sub-cooling or under-cooling Super-cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The difference between dry bulb temperature and wet bulb temperature, is called Dew point depression Wet bulb depression Dry bulb depression Degree of saturation Dew point depression Wet bulb depression Dry bulb depression Degree of saturation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Where does the lowest temperature occur in a vapour compression cycle? Expansion valve Condenser Compressor Evaporator Expansion valve Condenser Compressor Evaporator ANSWER DOWNLOAD EXAMIANS APP
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