Process Equipment and Plant Design Optimum reflux ratio in a continuous distillation column is determined by the Maximum permissible vapour velocity Flooding limit of the column None of these Total cost consideration (fixed cost of the column plus the cooling water & steam cost) Maximum permissible vapour velocity Flooding limit of the column None of these Total cost consideration (fixed cost of the column plus the cooling water & steam cost) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head. Either A or B, whichever is smaller Either A or B, whichever is larger 3 times the thickness 6% of I.D. Either A or B, whichever is smaller Either A or B, whichever is larger 3 times the thickness 6% of I.D. ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Skirt support is the most suitable for supporting __________ vessels. Tall vertical Small horizontal Large horizontal Thick walled Tall vertical Small horizontal Large horizontal Thick walled ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Compensation against openings in process vessels for giving inlet and outlet connections, for providing sight glasses and manholes etc. is provided for strength and rigidity. The most efficient type of compensation is of __________ type. Fluid in Flared out Ring plate Nozzle or rim Fluid in Flared out Ring plate Nozzle or rim ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method? Heat of mixing of normal liquid is assumed to be zero Molar latent heat of the two components are equal Reflux is not a saturated liquid Sensible heat changes for vapour & liquid are negligibly small Heat of mixing of normal liquid is assumed to be zero Molar latent heat of the two components are equal Reflux is not a saturated liquid Sensible heat changes for vapour & liquid are negligibly small ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate? Triangular pitch Diagonal square pitch Heat transfer rate is independent of tube arrangement Square pitch Triangular pitch Diagonal square pitch Heat transfer rate is independent of tube arrangement Square pitch ANSWER DOWNLOAD EXAMIANS APP
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