Refrigeration and Air Conditioning The bypass factor for a cooling coil Increases with increase in velocity of air passing through it Decreases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Increases with increase in velocity of air passing through it Decreases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering ANSWER DOWNLOAD EXAMIANS APP
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 leads to significant cost reduction It considerably reduces mass of the system It improves the C.O.P., as the condenser is small The positive work in isentropic expansion of liquid is very small It leads to significant cost reduction It considerably reduces mass of the system It improves the C.O.P., as the condenser is small ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since These react with oxygen and cause its depletion These react with ozone layer These react with plants and cause greenhouse effect These react with water vapour and cause acid rain These react with oxygen and cause its depletion These react with ozone layer These react with plants and cause greenhouse effect These react with water vapour and cause acid rain ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The specific humidity during dehumidification process Decreases None of these Remains constant Increases Decreases None of these Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a lithium bromide absorption refrigeration system None of these Lithium bromide is used as a refrigerant and water as an absorbent Ammonia is used as a refrigerant and lithium bromide as an absorbent Water is used as a refrigerant and lithium bromide as an absorbent None of these Lithium bromide is used as a refrigerant and water as an absorbent Ammonia is used as a refrigerant and lithium bromide as an absorbent Water is used as a refrigerant and lithium bromide as an absorbent ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Allowable pressure on high pressure side or ammonia absorption system is of the order of Atmospheric pressure 24 bars Slightly above atmospheric pressure 56 bars Atmospheric pressure 24 bars Slightly above atmospheric pressure 56 bars ANSWER DOWNLOAD EXAMIANS APP
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