Refrigeration and Air Conditioning R-12 is generally preferred over R-22 in deep freezers since It gives higher coefficient of performance All of these It is miscible with oil over large range of temperatures It has low operating pressures It gives higher coefficient of performance All of these It is miscible with oil over large range of temperatures It has low operating pressures ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning As relative humidity decreases, the dew point temperature will be ___ wet bulb temperature. Same as Higher than None of the listed here Lower than Same as Higher than None of the listed here Lower than ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The human body feels comfortable when the heat stored in the body is Zero Negative None of these Positive Zero Negative None of these Positive ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia is Highly toxic and inflammable Non-toxic Non-inflammable Toxic and non-inflammable Highly toxic and inflammable Non-toxic Non-inflammable Toxic and non-inflammable ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant remains same increases depends on other factors decreases remains same increases depends on other factors decreases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature of air entering the cooling coil, td₂ = Dry bulb temperature of air leaving the cooling coil, and td₃ = Dry bulb temperature of the cooling coil) (td₃ -td₂)/( td₁ -td₃) (td₂ -td₃)/( td₁ -td₃) (td₁ -td₃)/( td₂ -td₃) (td₃ -td₁)/( td₂ -td₃) (td₃ -td₂)/( td₁ -td₃) (td₂ -td₃)/( td₁ -td₃) (td₁ -td₃)/( td₂ -td₃) (td₃ -td₁)/( td₂ -td₃) ANSWER DOWNLOAD EXAMIANS APP
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