Refrigeration and Air Conditioning Freon group of refrigerants are Toxic Nontoxic and non-inflammable Inflammable Non-inflammable and toxic Toxic Nontoxic and non-inflammable Inflammable Non-inflammable and toxic ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator. Reduce Increase None of these Equalize Reduce Increase None of these Equalize ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = μ cp/k NN = V²/t.cp NN = hl/k NN = ρ V l /μ NN = μ cp/k NN = V²/t.cp NN = hl/k NN = ρ V l /μ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called Coefficient of performance of refrigeration Coefficient of performance of heat pump Refrigerating efficiency Relative coefficient of performance Coefficient of performance of refrigeration Coefficient of performance of heat pump Refrigerating efficiency Relative coefficient of performance ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant supplied to a compressor must be None of these Dry saturated liquid refrigerant Superheated vapour refrigerant A mixture of liquid and vapour refrigerant None of these Dry saturated liquid refrigerant Superheated vapour refrigerant A mixture of liquid and vapour refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system Ammonia vapours to weak solution Strong solution to ammonia vapour Strong solution to weak solution Weak solution to strong solution Ammonia vapours to weak solution Strong solution to ammonia vapour Strong solution to weak solution Weak solution to strong solution ANSWER DOWNLOAD EXAMIANS APP
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