Refrigeration and Air Conditioning The central air conditioning system has ___________ overall efficiency as compared to individual systems. Same Higher None of these Lower Same Higher None of these Lower ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is Reversed Otto cycle Reversed Brayton cycle Reversed Carnot cycle Reversed Joule cycle Reversed Otto cycle Reversed Brayton cycle Reversed Carnot cycle Reversed Joule cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will Decrease Increase May increase or decrease depending on the type of refrigerant used Remain unaffected Decrease Increase May increase or decrease depending on the type of refrigerant used Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is 7.44 kW 1.86 kW 18.6 kW 3.72 kW 7.44 kW 1.86 kW 18.6 kW 3.72 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For unsaturated air, the dew point temperature is __________ wet bulb temperature. More than None of these Equal to Less than More than None of these Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant temperature lines Constant pressure lines Constant entropy lines Constant total heat lines Constant temperature lines Constant pressure lines Constant entropy lines Constant total heat lines ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS