Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant total heat lines Constant temperature lines Constant entropy lines Constant pressure lines Constant total heat lines Constant temperature lines Constant entropy lines Constant pressure lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature at 100% relative humidity is ________ dew point temperature. Higher than None of these Lower than Same as Higher than None of these Lower than Same as ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The optimum effective temperature for human comfort is Not dependent on season Lower in winter than in summer Same in winter and summer Higher in winter than in summer Not dependent on season Lower in winter than in summer Same in winter and summer Higher in winter than in summer ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a gas is to be liquefied, its temperature must be Equal to critical temperature Reduced to a value below its critical temperature None of these Increased to a value above its critical temperature Equal to critical temperature Reduced to a value below its critical temperature None of these Increased to a value above its critical temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor) P.F. - 1 1 - B. P.F. 1 + B.P.F. 1/ B.P.F. P.F. - 1 1 - B. P.F. 1 + B.P.F. 1/ B.P.F. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called Relative humidity Absolute humidity Humidity ratio Degree of saturation Relative humidity Absolute humidity Humidity ratio Degree of saturation ANSWER DOWNLOAD EXAMIANS APP
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