Mass Transfer Batch tray dryers suffers from the disadvantage of All of the listed here High labour cost & low heat economy High maintenance cost Non-uniform & low production rate All of the listed here High labour cost & low heat economy High maintenance cost Non-uniform & low production rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of unsaturated air Wet bulb temperature < dry bulb temperature None of the listed here Both of the options given here Dew point < wet bulb temperature Wet bulb temperature < dry bulb temperature None of the listed here Both of the options given here Dew point < wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During the constant rate period of drying of a solid, None of these Increased air humidity decreases the rate of drying Surface evaporation of unbound moisture occurs Increasing the air temperature decreases the drying rate None of these Increased air humidity decreases the rate of drying Surface evaporation of unbound moisture occurs Increasing the air temperature decreases the drying rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when A total condenser is used Saturated feed is not used The latent heat of vaporisation of the more and less volatile components are greatly different An azeotrope forms A total condenser is used Saturated feed is not used The latent heat of vaporisation of the more and less volatile components are greatly different An azeotrope forms ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steam distillation is not recommended to be used, if the Liquids decompose, if distilled directly at atmospheric pressure Azeotropic mixture is to be separated and the final product is miscible with water Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature Material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature Liquids decompose, if distilled directly at atmospheric pressure Azeotropic mixture is to be separated and the final product is miscible with water Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature Material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient of liquid is None of these Affected much less by temperature than that for gases Affected more by temperature than that for gases Not affected by the temperature None of these Affected much less by temperature than that for gases Affected more by temperature than that for gases Not affected by the temperature ANSWER DOWNLOAD EXAMIANS APP
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