Process Equipment and Plant Design The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is pd/4t pd/t pd/8t pd/2t pd/4t pd/t pd/8t pd/2t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of a 'thin' pressure vessel, the ratio of its diameter to wall thickness is > 10 > 20 < 10 30 > 10 > 20 < 10 30 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The main purpose of providing stepping on the trays is to Increase the residence time Improve the flow condition Facilitate handling of large flow rate of liquid Decrease the pressure drop Increase the residence time Improve the flow condition Facilitate handling of large flow rate of liquid Decrease the pressure drop ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure? None of these At the inner surface At the mid thickness of the cylindrical wall At the outer surface None of these At the inner surface At the mid thickness of the cylindrical wall At the outer surface 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 In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is Always less than the diameter of the tube Called tube pitch Called tube clearance None of these Always less than the diameter of the tube Called tube pitch Called tube clearance None of these ANSWER DOWNLOAD EXAMIANS APP
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