Refrigeration and Air Conditioning One tonne of refrigeration (1TR) means that the heat removing capacity is 21 kJ/min 420 kJ/min 620 kJ/min 210 kJ/min 21 kJ/min 420 kJ/min 620 kJ/min 210 kJ/min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of Copper Steel Brass Aluminium Copper Steel Brass Aluminium 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 Sub-cooling or under-cooling Super-cooling None of the listed here Normal cooling Sub-cooling or under-cooling Super-cooling None of the listed here Normal cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The capillary tube is not used in large capacity refrigeration systems because Required pressure drop cannot be achieved Capacity control is not possible It is made of copper Cost is too high Required pressure drop cannot be achieved Capacity control is not possible It is made of copper Cost is too high ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator changes the low pressure liquid refrigerant from the expansion valve into Low pressure vapour refrigerant Low pressure liquid and vapour refrigerant None of these High pressure liquid refrigerant Low pressure vapour refrigerant Low pressure liquid and vapour refrigerant None of these High pressure liquid refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant decreases increases remains same depends on other factors decreases increases remains same depends on other factors ANSWER DOWNLOAD EXAMIANS APP
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