Refrigeration and Air Conditioning The bypass factor for a cooling coil May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Increases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it Decreases with increase in velocity of air passing through it May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Increases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it Decreases with increase in velocity of air passing through it ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One tonne of refrigeration (1TR) means that the heat removing capacity is 620 kJ/min 21 kJ/min 210 kJ/min 420 kJ/min 620 kJ/min 21 kJ/min 210 kJ/min 420 kJ/min 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) 25 kJ/kg 100 kJ/kg 125 kJ/kg 50 kJ/kg 25 kJ/kg 100 kJ/kg 125 kJ/kg 50 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Operating the machine at higher speeds Raising the higher temperature Operating the machine at lower speeds Lowering the higher temperature Operating the machine at higher speeds Raising the higher temperature Operating the machine at lower speeds Lowering the higher temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vertical and uniformly spaced lines on a psychrometric chart indicates Dry bulb temperature Wet bulb temperature Specific humidity Dew point temperature Dry bulb temperature Wet bulb temperature Specific humidity Dew point temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant for a refrigerator should have High latent heat High total heat Low latent heat High sensible heat High latent heat High total heat Low latent heat High sensible heat ANSWER DOWNLOAD EXAMIANS APP
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