Process Equipment and Plant Design In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around 3.5 1.5 0.5 2.5 3.5 1.5 0.5 2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the None of these Smaller reactor should come first Larger reactor should come first Equal sized reactors are the best None of these Smaller reactor should come first Larger reactor should come first Equal sized reactors are the best ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the case of a shell and tube heat exchanger, the logarithmic mean temperature difference May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current Is always less than arithmetic average value Is always more than arithmetic mean value and the geometric mean value Is always less than arithmetic mean value, but more than geometric mean value May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current Is always less than arithmetic average value Is always more than arithmetic mean value and the geometric mean value Is always less than arithmetic mean value, but more than geometric mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in temperature drop (in a shell and tube heat exchanger), the LMTD correction factor, FT Remains constant Increases very rapidly Increases linearly Decreases very rapidly Remains constant Increases very rapidly Increases linearly Decreases very rapidly 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 for gas-gas exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger Both B & C 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers < 4 : 1 for gas-gas exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger Both B & C 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in the number of shell passes, the value of FT Decreases Remains same Increases Remains same, only if the number of tube passes does not change Decreases Remains same Increases Remains same, only if the number of tube passes does not change ANSWER DOWNLOAD EXAMIANS APP
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