Refrigeration and Air Conditioning The central air conditioning system has ___________ overall efficiency as compared to individual systems. Same None of these Lower Higher Same None of these Lower Higher ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The material of pipe lines for a system using Freon as a refrigerant should be Copper Brass Steel Aluminium Copper Brass Steel Aluminium 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 It improves the C.O.P., as the condenser is small It leads to significant cost reduction The positive work in isentropic expansion of liquid is very small It considerably reduces mass of the system It improves the C.O.P., as the condenser is small It leads to significant cost reduction The positive work in isentropic expansion of liquid is very small It considerably reduces mass of the system ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The power per tonne of refrigeration is 3.5 × C.O.P. 3.5/C.O.P. None of these O.P/3.5 3.5 × C.O.P. 3.5/C.O.P. None of these O.P/3.5 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression cycle, the refrigerant immediately after expansion valve is Liquid Saturated liquid Wet vapour Sub-cooled liquid Liquid Saturated liquid Wet vapour Sub-cooled liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor for a cooling coil May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Remains unchanged with increase in velocity of air passing through it Increases with increase in velocity of air passing through it Decreases 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 Remains unchanged with increase in velocity of air passing through it Increases with increase in velocity of air passing through it Decreases with increase in velocity of air passing through it ANSWER DOWNLOAD EXAMIANS APP
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