Refrigeration and Air Conditioning In a vapour compression refrigeration system, a throttle valve is used in place of an expander because The positive work in isentropic expansion of liquid is very small It improves the C.O.P., as the condenser is small It leads to significant cost reduction It considerably reduces mass of the system The positive work in isentropic expansion of liquid is very small It improves the C.O.P., as the condenser is small It leads to significant cost reduction It considerably reduces mass of the system ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Rating of a domestic refrigerator is of the order of 40 tons 5 tons 0.1 ton 10 tons 40 tons 5 tons 0.1 ton 10 tons ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle, the condition of refrigerant is saturated liquid After passing through the condenser Before passing through the condenser After passing through the expansion throttle valve Before entering the expansion valve After passing through the condenser Before passing through the condenser After passing through the expansion throttle valve Before entering the expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible cooling of air Remains constant Decreases None of these Increases Remains constant Decreases None of these Increases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The formation of frost on cooling coils in a refrigerator Increases power consumption Increases heat transfer Improves C.O.P. of the system Reduces power consumption Increases power consumption Increases heat transfer Improves C.O.P. of the system Reduces power consumption ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia is Toxic and non-inflammable Non-toxic Non-inflammable Highly toxic and inflammable Toxic and non-inflammable Non-toxic Non-inflammable Highly toxic and inflammable ANSWER DOWNLOAD EXAMIANS APP
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