Refrigeration and Air Conditioning The vapour pressure of refrigerant should be Lower than atmospheric pressure Equal to atmospheric pressure Higher than atmospheric pressure Could be anything Lower than atmospheric pressure Equal to atmospheric pressure Higher than atmospheric pressure Could be anything ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning An evaporator is also known as All of these Chilling coil Cooling coil Freezing coil All of these Chilling coil Cooling coil Freezing coil ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Chaperon equation is applicable for registration at Sublimation temperature Triple point Saturation point of vapour Saturation point of liquid Sublimation temperature Triple point Saturation point of vapour Saturation point of liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is 7.44 kW 3.72 kW 1.86 kW 18.6 kW 7.44 kW 3.72 kW 1.86 kW 18.6 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is correct for ammonia as a refrigerant? It requires large displacement per TR compared to fluoro carbons. It is toxic to mucous membranes. All of these It reacts with copper and its alloys. It requires large displacement per TR compared to fluoro carbons. It is toxic to mucous membranes. All of these It reacts with copper and its alloys. 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) (td₁ -td₃)/( td₂ -td₃) (td₂ -td₃)/( td₁ -td₃) (td₃ -td₂)/( td₁ -td₃) (td₃ -td₁)/( td₂ -td₃) (td₁ -td₃)/( td₂ -td₃) (td₂ -td₃)/( td₁ -td₃) (td₃ -td₂)/( td₁ -td₃) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS