Refrigeration and Air Conditioning Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the value of C.O.P. of reversed Carnot Cycle? 0.25 0.8 1.25 0.5 0.25 0.8 1.25 0.5 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The leaks in a refrigeration system using Freon are detected by Sulphur sticks which on detection gives white smoke Halide torch which on detection produces greenish flame lighting Using reagents Smelling Sulphur sticks which on detection gives white smoke Halide torch which on detection produces greenish flame lighting Using reagents Smelling ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The domestic refrigerator uses following type of compressor Axial Centrifugal Piston type reciprocating Miniature sealed unit Axial Centrifugal Piston type reciprocating Miniature sealed unit ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The temperature of ammonia after compression in a vapour compression system is 70 to 110°C None of these 20 to 50°C 50 to 70°C 70 to 110°C None of these 20 to 50°C 50 to 70°C 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 3.72 kW 18.6 kW 1.86 kW 7.44 kW 3.72 kW 18.6 kW 1.86 kW 7.44 kW 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 Strong solution to weak solution Ammonia vapours to weak solution Strong solution to ammonia vapour Weak solution to strong solution Strong solution to weak solution Ammonia vapours to weak solution Strong solution to ammonia vapour Weak solution to strong solution ANSWER DOWNLOAD EXAMIANS APP
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