Process Equipment and Plant Design The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from 1 to 1.5 0.5 to 1 1.5 to 2 2 to 2.5 1 to 1.5 0.5 to 1 1.5 to 2 2 to 2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, tube side __________ of the mass velocity. Heat transfer co-efficient is proportional to 0.8th power Both A & B Neither A nor B Pressure drop is proportional to the square Heat transfer co-efficient is proportional to 0.8th power Both A & B Neither A nor B Pressure drop is proportional to the square ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes Are easier to clean Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less None of these Are less prone to fouling Are easier to clean Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less None of these Are less prone to fouling ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design High pressure fluid in a shell and tube heat exchanger should preferably be routed through the Shell side for smaller total pressure drop Shell side, if the flow is counter-current and tube side if the flow is co-current Tubes to avoid the expansion of high pressure shell construction Shell side for large overall heat transfer co-efficient Shell side for smaller total pressure drop Shell side, if the flow is counter-current and tube side if the flow is co-current Tubes to avoid the expansion of high pressure shell construction Shell side for large overall heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always More than arithmetic mean value Less than arithmetic mean value Both B & C More than geometric mean value More than arithmetic mean value Less than arithmetic mean value Both B & C More than geometric mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as 0.8 0.1 0.5 0.25 0.8 0.1 0.5 0.25 ANSWER DOWNLOAD EXAMIANS APP
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