Refrigeration and Air Conditioning In aircraft, air refrigeration Cycle is used because of Low weight per tonne of refrigeration Higher coefficient of performance High heat transfer rate Low temperature at high altitudes Low weight per tonne of refrigeration Higher coefficient of performance High heat transfer rate Low temperature at high altitudes ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system Strong solution to weak solution Weak solution to strong solution Ammonia vapours to weak solution Strong solution to ammonia vapour Strong solution to weak solution Weak solution to strong solution Ammonia vapours to weak solution Strong solution to ammonia vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the wrong statement. A refrigerant should have Tow specific heat of liquid Higher critical temperature High boiling point High latent heat of vaporisation Tow specific heat of liquid Higher critical temperature High boiling point High latent heat of vaporisation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve operates on the changes in the Pressure in the evaporator Temperature of the evaporator Degree of superheat at exit from the evaporator None of these Pressure in the evaporator Temperature of the evaporator Degree of superheat at exit from the evaporator None of these ANSWER DOWNLOAD EXAMIANS APP
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 Positive Negative None of the listed here Zero Positive Negative ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sensible heat factor during the heating and humidification process is given by (where h₁ = Enthalpy of air entering the heating coil, h₂ = Enthalpy of air leaving the heating coil, and hA = Enthalpy of air at the end of humidification process) (hA - h1)/ (h2 - h1) (h1 - h2)/ (hA - h2) (h2 - hA)/ (h1 - h2) (hA - h2)/ (h1 - h2) (hA - h1)/ (h2 - h1) (h1 - h2)/ (hA - h2) (h2 - hA)/ (h1 - h2) (hA - h2)/ (h1 - h2) ANSWER DOWNLOAD EXAMIANS APP
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