Process Equipment and Plant Design Back-trapping in a distillation column results due to Low gas velocity High gas velocity Excessive liquid gradient over the tray Low reflux ratio Low gas velocity High gas velocity Excessive liquid gradient over the tray Low reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from 44119 7.5-10.0 1.5-2.5 3.5-5.5 44119 7.5-10.0 1.5-2.5 3.5-5.5 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 Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid Results in higher shell side pressure drop Can accomodate less number of tubes for a given shell diameter 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 Results in higher shell side pressure drop Can accomodate less number of tubes for a given shell diameter Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio of linear stress to linear strain is termed as the Modulus of elasticity Modulus of rigidity Bulk modulus None of these Modulus of elasticity Modulus of rigidity Bulk modulus None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the Relative volatility is close to one (e.g., separation of close boiling isomers) Number of equilibrium stages in only stripping section is to be calculated Feed is not at its bubble point Number of equilibrium stages required is likely to be very small Relative volatility is close to one (e.g., separation of close boiling isomers) Number of equilibrium stages in only stripping section is to be calculated Feed is not at its bubble point Number of equilibrium stages required is likely to be very small ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is About 0.33 times Same Less About 3 times About 0.33 times Same Less About 3 times ANSWER DOWNLOAD EXAMIANS APP
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