Process Equipment and Plant Design Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor. 15-20 35-40 30-35 43961 15-20 35-40 30-35 43961 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by An increase in liquid viscosity An increase in relatived volatility for rectification columns Decrease in gas solubility for absorbers All of these An increase in liquid viscosity An increase in relatived volatility for rectification columns Decrease in gas solubility for absorbers All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ratio of tube length to shell diameter for a shell and tube heat exchanger is 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers < 4 : 1 for gas-gas exchangers Both B & C 4 : 1 to 8 : 1 for liquid-liquid exchanger 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers < 4 : 1 for gas-gas exchangers Both B & C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum shell thickness for tank ≤ 15 metres diameter is limited to __________ mm, for reasons of elastic stability. 15 5 2 10 15 5 2 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell Decreases upwards Remains same throughout Increases upwards May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell Decreases upwards Remains same throughout Increases upwards May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Maximum plate efficiency is achieved in case of __________ flow. Reverse Cross Cascade Split Reverse Cross Cascade Split ANSWER DOWNLOAD EXAMIANS APP
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