Refrigeration and Air Conditioning The central air conditioning system has ___________ overall efficiency as compared to individual systems. Lower None of these Same Higher Lower None of these Same Higher ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere? Sulphur dioxide Carbon dioxide Ammonia Fluorine Sulphur dioxide Carbon dioxide Ammonia Fluorine ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning While designing the refrigeration system of an aircraft, the prime consideration is that the Mass of the refrigeration equipment is low System has high C.O.P. Mass of refrigerant circulated in the system is low Power per TR is low Mass of the refrigeration equipment is low System has high C.O.P. Mass of refrigerant circulated in the system is low Power per TR is low 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) μ/[1 - (1 - μ) (Ps/Pb)] [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] None of these 0.622 Pv / (Pb - Pv) μ/[1 - (1 - μ) (Ps/Pb)] [Pv (Pb - Pd)]/ [Pd (Pb - Pv)] None of these 0.622 Pv / (Pb - Pv) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sub-cooling in a refrigeration cycle Increases C.O.P. Decreases C.O.P. Does not alter C.O.P. None of these Increases C.O.P. Decreases C.O.P. Does not alter C.O.P. None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = hl/k NN = ρ V l /μ NN = V²/t.cp NN = μ cp/k NN = hl/k NN = ρ V l /μ NN = V²/t.cp NN = μ cp/k ANSWER DOWNLOAD EXAMIANS APP
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