Refrigeration and Air Conditioning Vertical lines on pressure-enthalpy chart show constant Pressure lines Entropy lines Temperature lines Total heat lines Pressure lines Entropy lines Temperature lines Total heat lines 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 The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called None of the listed here Super-cooling Normal cooling Sub-cooling or under-cooling None of the listed here Super-cooling Normal cooling Sub-cooling or under-cooling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Relative humidity is given by (where pv = Partial pressure of water vapour, pb = Barometric pressure, ps = Pressure of saturated air, pd = Pressure at dry bulb temperature, pw = Saturation pressure corresponding to wet bulb temperature, and μ = Degree of saturation) [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] μ/[1 - (1 - μ) (Ps/Pb)] None of these 0.622 Pv / (Pb - Pv) [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] μ/[1 - (1 - μ) (Ps/Pb)] None of these 0.622 Pv / (Pb - Pv) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton of the refrigeration is The standard unit used in refrigeration problems The refrigeration effect to produce 1 ton of ice at NTP conditions The refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours The cooling effect produced by melting 1 ton of ice The standard unit used in refrigeration problems The refrigeration effect to produce 1 ton of ice at NTP conditions The refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours The cooling effect produced by melting 1 ton of ice ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration cycle, the flow of refrigerant is controlled by Compressor Evaporator Expansion valve Condenser Compressor Evaporator Expansion valve Condenser ANSWER DOWNLOAD EXAMIANS APP
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