Refrigeration and Air Conditioning The humidity ratio or specific humidity is the mass of water vapour present in 1 kg of dry air 1 m3 of wet air 1 kg of wet air 1 m3 of dry air 1 kg of dry air 1 m3 of wet air 1 kg of wet air 1 m3 of dry air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The capillary tube is not used in large capacity refrigeration systems because It is made of copper Cost is too high Required pressure drop cannot be achieved Capacity control is not possible It is made of copper Cost is too high Required pressure drop cannot be achieved Capacity control is not possible ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a gas is to be liquefied, its temperature must be Equal to critical temperature None of these Increased to a value above its critical temperature Reduced to a value below its critical temperature Equal to critical temperature None of these Increased to a value above its critical temperature Reduced to a value below its critical temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During adiabatic saturation process on unsaturated air ___ remains constant. Relative humidity Dry bulb temperature Wet bulb temperature Dew point temperature Relative humidity Dry bulb temperature Wet bulb temperature Dew point temperature 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) None of these [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) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia is Non-toxic Highly toxic and inflammable Toxic and non-inflammable Non-inflammable Non-toxic Highly toxic and inflammable Toxic and non-inflammable Non-inflammable ANSWER DOWNLOAD EXAMIANS APP
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