Refrigeration and Air Conditioning When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be None of the listed here Zero Negative Positive None of the listed here Zero Negative Positive 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 Super-cooling Normal cooling Sub-cooling or under-cooling None of the listed here Super-cooling Normal cooling Sub-cooling or under-cooling None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During sensible heating of air _________ decreases. Wet bulb temperature Dry bulb temperature Relative humidity Specific humidity Wet bulb temperature Dry bulb temperature Relative humidity Specific humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression refrigeration system, refrigerant occurs as liquid between Expansion valve and evaporator Compressor and condenser Condenser and expansion valve Compressor and evaporator Expansion valve and evaporator Compressor and condenser Condenser and expansion valve Compressor and evaporator 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)] 0.622 Pv / (Pb - Pv) None of these [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] μ/[1 - (1 - μ) (Ps/Pb)] 0.622 Pv / (Pb - Pv) None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and R-12 Carbon dioxide Sulphur dioxide Lithium bromide R-12 Carbon dioxide Sulphur dioxide Lithium bromide ANSWER DOWNLOAD EXAMIANS APP
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