Process Equipment and Plant Design In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio. 1.1 to 1.5 1.6 to 2 2.7 to 3 2.2 to 2.6 1.1 to 1.5 1.6 to 2 2.7 to 3 2.2 to 2.6 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate. 43832 43834 2 4 43832 43834 2 4 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower. Pressure and temperature All of these Molal flow rate of vapour Vapour molecular weight Pressure and temperature All of these Molal flow rate of vapour Vapour molecular weight ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid Can accomodate less number of tubes for a given shell diameter Results in higher shell side pressure drop Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid Can accomodate less number of tubes for a given shell diameter Results in higher shell side pressure drop ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The dust collection efficiency of a cyclone separator Is inversely proportional to the mass of the dust particle Decreases with increase in gas flow rate Is directly proportional to the radius of the dust particle path None of these Is inversely proportional to the mass of the dust particle Decreases with increase in gas flow rate Is directly proportional to the radius of the dust particle path None of these 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 Larger reactor should come first Smaller reactor should come first Equal sized reactors are the best None of these Larger reactor should come first Smaller reactor should come first Equal sized reactors are the best ANSWER DOWNLOAD EXAMIANS APP
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