Refrigeration and Air Conditioning Highest pressure encountered in a refrigeration system should be Near critical pressure Critical pressure of refrigerant Much above critical pressure Much below critical pressure Near critical pressure Critical pressure of refrigerant Much above critical pressure Much below critical pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The cooling system used for supersonic aircrafts and rockets is Reduced ambient air cooling system Regenerative air cooling system Simple air cooling system Bootstrap air cooling system Reduced ambient air cooling system Regenerative air cooling system Simple air cooling system Bootstrap air cooling system ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve is used in ________ type of evaporators. None of these Dry Flooded DX coil None of these Dry Flooded DX coil ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be 4.33 2.33 1.33 3.33 4.33 2.33 1.33 3.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature of air entering the cooling coil, td₂ = Dry bulb temperature of air leaving the cooling coil, and td₃ = Dry bulb temperature of the cooling coil) (td₃ -td₁)/( td₂ -td₃) (td₂ -td₃)/( td₁ -td₃) (td₃ -td₂)/( td₁ -td₃) (td₁ -td₃)/( td₂ -td₃) (td₃ -td₁)/( td₂ -td₃) (td₂ -td₃)/( td₁ -td₃) (td₃ -td₂)/( td₁ -td₃) (td₁ -td₃)/( td₂ -td₃) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Air conditioning means Heating Cooling Dehumidifying All of these Heating Cooling Dehumidifying All of these ANSWER DOWNLOAD EXAMIANS APP