Refrigeration and Air Conditioning A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be 2 kW 1 kW 3 kW 4 kW 2 kW 1 kW 3 kW 4 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = hl/k NN = ρ V l /μ NN = μ cp/k NN = V²/t.cp NN = hl/k NN = ρ V l /μ NN = μ cp/k NN = V²/t.cp ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The suction pipe diameter of refrigerating unit compressor in comparison to delivery side is Smaller Equal Smaller/bigger depending on capacity Bigger Smaller Equal Smaller/bigger depending on capacity Bigger ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Allowable pressure on high pressure side or ammonia absorption system is of the order of 24 bars Atmospheric pressure 56 bars Slightly above atmospheric pressure 24 bars Atmospheric pressure 56 bars Slightly above atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Most air cooled condensers are designed to operate with a temperature difference of 8°C 5°C 14°C 22°C 8°C 5°C 14°C 22°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigerator uses _________ as a refrigerant. Freon Ammonia Water Aqua-ammonia Freon Ammonia Water Aqua-ammonia ANSWER DOWNLOAD EXAMIANS APP
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