Refrigeration and Air Conditioning One tonne of refrigeration (1TR) means that the heat removing capacity is 21 kJ/min 210 kJ/min 420 kJ/min 620 kJ/min 21 kJ/min 210 kJ/min 420 kJ/min 620 kJ/min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Under cooling in a refrigeration cycle Decreases C.O.P Increases C.O.P O.P remains unaltered Other factors decide C.O.P Decreases C.O.P Increases C.O.P O.P remains unaltered Other factors decide C.O.P 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 Humidity ratio Absolute humidity Relative humidity Degree of saturation Humidity ratio Absolute humidity Relative humidity Degree of saturation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The superheating in a refrigeration cycle Decreases C.O.P. Does not alter C.O.P. None of these Increases C.O.P. Decreases C.O.P. Does not alter C.O.P. None of these Increases C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Chaperon equation is a relation between Temperature, pressure, specific volume and enthalpy Temperature, pressure and enthalpy Specific volume and enthalpy Temperature and enthalpy Temperature, pressure, specific volume and enthalpy Temperature, pressure and enthalpy Specific volume and enthalpy Temperature and enthalpy 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 leads to significant cost reduction It considerably reduces mass of the system It improves the C.O.P., as the condenser is small The positive work in isentropic expansion of liquid is very small It leads to significant cost reduction It considerably reduces mass of the system It improves the C.O.P., as the condenser is small ANSWER DOWNLOAD EXAMIANS APP
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