Process Equipment and Plant Design The function of manholes provided in the shell of a distillation column is to All of these Guard against foaming & entrainment by dumping antifoaming agent through it Keep a check on the liquid gradient over the plate by direct visual observation Give access to the individual trays for cleaning, maintenance and installation All of these Guard against foaming & entrainment by dumping antifoaming agent through it Keep a check on the liquid gradient over the plate by direct visual observation Give access to the individual trays for cleaning, maintenance and installation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) Η = 24.6 (Δp/μ) Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 24.6 (Δp/μ) Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Vertical condenser is advantageous to the horizontal condenser from operation point of view, when Hydrostatic head is required for refluxing the condensate Only the function of condensation is to be carried out Sub cooling of condensate is desired Both the functions of condensation & sub cooling are carried out in a single unit Hydrostatic head is required for refluxing the condensate Only the function of condensation is to be carried out Sub cooling of condensate is desired Both the functions of condensation & sub cooling are carried out in a single unit ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress. Twice Equal to Half Eight times Twice Equal to Half Eight times ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A/an __________ is used for changing the direction of a pipeline. Flange Union Disc compensator Elbow Flange Union Disc compensator Elbow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by (p² - πd²/4)/πd 4(0.86p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²)/πd (p² - πd²/4)/πd 4(0.86p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²)/πd ANSWER DOWNLOAD EXAMIANS APP
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