Refrigeration and Air Conditioning A refrigerant compressor is used to Circulate the refrigerant through the refrigerating system Raise the pressure of the refrigerant Raise the temperature of the refrigerant All of these Circulate the refrigerant through the refrigerating system Raise the pressure of the refrigerant Raise the temperature of the refrigerant All of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The horizontal and non-uniformly spaced lines on a psychrometric chart indicates Specific humidity Dry bulb temperature Dew point temperature Wet bulb temperature Specific humidity Dry bulb temperature Dew point temperature Wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The specific humidity during heating and humidification process. Remains constant Increases Decreases None of these Remains constant Increases Decreases None of these 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 1.86 kW 3.72 kW 7.44 kW 18.6 kW 1.86 kW 3.72 kW 7.44 kW 18.6 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is 0.6 0.376 0.4 0.67 0.6 0.376 0.4 0.67 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant total heat lines Constant temperature lines Constant entropy lines Constant pressure lines Constant total heat lines Constant temperature lines Constant entropy lines Constant pressure lines ANSWER DOWNLOAD EXAMIANS APP
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