Refrigeration and Air Conditioning The vertical and uniformly spaced lines on a psychrometric chart indicates Dry bulb temperature Specific humidity Wet bulb temperature Dew point temperature Dry bulb temperature Specific humidity Wet bulb temperature Dew point temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the wrong statement. A refrigerant should have High latent heat of vaporisation 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 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process Involves no change in volume Takes place at constant entropy Takes place at constant pressure Takes place at constant temperature Involves no change in volume Takes place at constant entropy Takes place at constant pressure Takes place at constant temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the value of C.O.P. of reversed Carnot Cycle? 0.8 0.25 0.5 1.25 0.8 0.25 0.5 1.25 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg) 50 kJ/kg 25 kJ/kg 125 kJ/kg 100 kJ/kg 50 kJ/kg 25 kJ/kg 125 kJ/kg 100 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Bell Coleman cycle is a Reversed Joule cycle Reversed Carnot cycle Reversed Rankine cycle Reversed Otto cycle Reversed Joule cycle Reversed Carnot cycle Reversed Rankine cycle Reversed Otto cycle ANSWER DOWNLOAD EXAMIANS APP
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