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 Reflux is not a saturated liquid Molar latent heat of the two components are equal Sensible heat changes for vapour & liquid are negligibly small Heat of mixing of normal liquid is assumed to be zero Reflux is not a saturated liquid Molar latent heat of the two components are equal Sensible heat changes for vapour & liquid are negligibly small 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. 3 times the thickness 6% of I.D. Either A or B, whichever is larger Either A or B, whichever is smaller 3 times the thickness 6% of I.D. Either A or B, whichever is larger Either A or B, whichever is smaller ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around 180 and 300 300 and 500 5 and 10 45 and 75 180 and 300 300 and 500 5 and 10 45 and 75 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder Has greater structural strength Is easy to fabricate Both A & B Neither A nor B Has greater structural strength Is easy to fabricate Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Seamless pipe is made By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer point and further reducing it by rolling gas drawing Both B and C From rolled strips formed into cylinders and seam-welded By extrusion & casting into static and centrifugal molds By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer point and further reducing it by rolling gas drawing Both B and C From rolled strips formed into cylinders and seam-welded By extrusion & casting into static and centrifugal molds ANSWER DOWNLOAD EXAMIANS APP
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