Refrigeration and Air Conditioning A one tonne refrigerating machine means that One tonne is the total mass of machine One tonne of water can be converted into ice One tonne refrigerant is used One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min One tonne is the total mass of machine One tonne of water can be converted into ice One tonne refrigerant is used One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor (B. P. F.) in case of sensible heating of air is (Where td₁ = Dry bulb temperature of air entering the heating coil, td₂ = Dry bulb temperature of air leaving the heating coil, and td₃ = Dry bulb temperature of heating coil) (td₂ - td₃)/(td₃ - td₁) (td₃ - td₁)/(td₃ - td₂) (td₃ - td₂)/(td₃ - td₁) (td₃ - td₁)/(td₂ - td₃) (td₂ - td₃)/(td₃ - td₁) (td₃ - td₁)/(td₃ - td₂) (td₃ - td₂)/(td₃ - td₁) (td₃ - td₁)/(td₂ - td₃) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evolution of heat of solution takes place in ammonia absorption plant when Ammonia vapour goes into solution Weak solution mixes with strong solution Ammonia vapour is driven out of solution Lithium bromide mixes with ammonia Ammonia vapour goes into solution Weak solution mixes with strong solution Ammonia vapour is driven out of solution Lithium bromide mixes with ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The power per tonne of refrigeration is 3.5/C.O.P. O.P/3.5 None of these 3.5 × C.O.P. 3.5/C.O.P. O.P/3.5 None of these 3.5 × C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be More Less More/less depending on rating Same More Less More/less depending on rating Same ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The freezing point of R-12 is -86.6°C -95.2°C -107.7°C -135.8°C -86.6°C -95.2°C -107.7°C -135.8°C ANSWER DOWNLOAD EXAMIANS APP
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