Refrigeration and Air Conditioning A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is Ammonia Brine Carbon dioxide Freon Ammonia Brine Carbon dioxide Freon 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) (h1 - h2)/ (hA - h2) (hA - h1)/ (h2 - h1) (h2 - hA)/ (h1 - h2) (hA - h2)/ (h1 - h2) (h1 - h2)/ (hA - h2) (hA - h1)/ (h2 - h1) (h2 - hA)/ (h1 - h2) (hA - h2)/ (h1 - h2) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The air cooling system mostly used in transport type aircrafts is All of the listed here Bootstrap air cooling system Simple air cooling system Simple evaporative air cooling system All of the listed here Bootstrap air cooling system Simple air cooling system Simple evaporative air cooling system ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor for a cooling coil Remains unchanged with increase in velocity of air passing through it Increases 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 Remains unchanged with increase in velocity of air passing through it Increases 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 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is More than or equal to 3.65 kg There is no such consideration Less than 2 kg More than 10 kg More than or equal to 3.65 kg There is no such consideration Less than 2 kg More than 10 kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The relative humidity lines on a psychrometric chart are Horizontal and uniformly spaced Horizontal and non-uniformly spaced Vertical and uniformly spaced Curved lines Horizontal and uniformly spaced Horizontal and non-uniformly spaced Vertical and uniformly spaced Curved lines ANSWER DOWNLOAD EXAMIANS APP
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