Mass Transfer Priming in a distillation column Reduces the overall pressure drop Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Is desirable from point efficiency consideration Reduces the overall pressure drop Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Is desirable from point efficiency consideration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When an unsaturated air-water mixture is heated at constant pressure, then The specific humidity decreases The relative humidity decreases The partial pressure of water vapour increases The relative humidity increases The specific humidity decreases The relative humidity decreases The partial pressure of water vapour increases The relative humidity increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In batch distillation with constant reflux, overhead product composition __________ with time. Decreases May increase on decrease, depends on the system Increases Does not vary Decreases May increase on decrease, depends on the system Increases Does not vary ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives High pressure drop and high hold up Low pressure drop and high hold up High pressure drop and low hold up Low pressure drop and low hold up High pressure drop and high hold up Low pressure drop and high hold up High pressure drop and low hold up Low pressure drop and low hold up ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Make up water is required in a cooling tower to replace the water lost by Drift Evaporation Blowdown and leakage All of these Drift Evaporation Blowdown and leakage All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient of liquid is Affected more by temperature than that for gases None of these Affected much less by temperature than that for gases Not affected by the temperature Affected more by temperature than that for gases None of these Affected much less by temperature than that for gases Not affected by the temperature ANSWER DOWNLOAD EXAMIANS APP
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