Refrigeration and Air Conditioning The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by O.P)R ( ( O.P)P = ( ( O.P.)P = ( O.P.)P = ( O.P.)R + 2 ( O.P.)R + 1 O.P)P = ( O.P)R - 1 O.P)R ( ( O.P)P = ( ( O.P.)P = ( O.P.)P = ( O.P.)R + 2 ( O.P.)R + 1 O.P)P = ( O.P)R - 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of an absorption type refrigerator is given by (where T₁ = Temperature at which the working substance receives heat, T₂ = Temperature of cooling water, and T₃ = Evaporator temperature) [T₁ (T₁ - T₂)] / [T₃ (T₂ - T₃)] [T₁ (T₂ - T₃)] / [T₃ (T₁ - T₂)] [T₃ (T₁ - T₂)]/ [T₁ (T₂ - T₃)] [T₃ (T₂ - T₃)] / [T₁ (T₁ - T₂)] [T₁ (T₁ - T₂)] / [T₃ (T₂ - T₃)] [T₁ (T₂ - T₃)] / [T₃ (T₁ - T₂)] [T₃ (T₁ - T₂)]/ [T₁ (T₂ - T₃)] [T₃ (T₂ - T₃)] / [T₁ (T₁ - T₂)] ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Condensing temperature in a refrigerator is the temperature Of cooling medium Of evaporator Of freezing zone At which refrigerant gas becomes liquid Of cooling medium Of evaporator Of freezing zone At which refrigerant gas becomes liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is Heated and humidified Cooled and humidified Cooled and dehumidified Heated and dehumidified Heated and humidified Cooled and humidified Cooled and dehumidified Heated and dehumidified 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 More/less depending on rating Less Same More More/less depending on rating Less Same ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Freon group of refrigerants are Toxic Non-inflammable and toxic Nontoxic and non-inflammable Inflammable Toxic Non-inflammable and toxic Nontoxic and non-inflammable Inflammable ANSWER DOWNLOAD EXAMIANS APP
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