Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always Less than arithmetic mean value More than geometric mean value Both B & C More than arithmetic mean value Less than arithmetic mean value More than geometric mean value Both B & C More than arithmetic mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Compensation against openings in process vessels for giving inlet and outlet connections, for providing sight glasses and manholes etc. is provided for strength and rigidity. The most efficient type of compensation is of __________ type. Fluid in Ring plate Nozzle or rim Flared out Fluid in Ring plate Nozzle or rim Flared out ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Liquid gradient over the tray results due to the Large reflux ratio Low gas velocity Large plate spacing Resistance offered to flow of liquids by caps & risers and the flow of gas Large reflux ratio Low gas velocity Large plate spacing Resistance offered to flow of liquids by caps & risers and the flow of gas ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ratio of tube length to shell diameter for a shell and tube heat exchanger is Both B & C < 4 : 1 for gas-gas exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers Both B & C < 4 : 1 for gas-gas exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Cooling water fouling factors vary in the range of 0.001 to 0.003 (kcal/hr.m² .°C)⁻¹ (BTU/hr.ft² . °F)⁻¹ (W/m².°K)⁻¹ (kcal/hr. m. °C)⁻¹ (kcal/hr.m² .°C)⁻¹ (BTU/hr.ft² . °F)⁻¹ (W/m².°K)⁻¹ (kcal/hr. m. °C)⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Raschig rings Cross-partition rings All of these Lessig rings Raschig rings Cross-partition rings All of these Lessig rings ANSWER DOWNLOAD EXAMIANS APP
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