Process Equipment and Plant Design Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as D = 1.5 t D = 1.1 t D = 1.6 √t D = 3√t D = 1.5 t D = 1.1 t D = 1.6 √t D = 3√t 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 Same About 3 times About 0.33 times Less Same About 3 times About 0.33 times Less ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A 'rupture disc' is provided in chemical equipments as an accessory meant for Avoiding vortex formation Creating turbulence Enhancing mixing rate Relieving excess pressure Avoiding vortex formation Creating turbulence Enhancing mixing rate Relieving excess pressure ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter. Twice Equal to 2 ft irrespective of (for column > 3 ft diameter) 0.6-0.8 times Twice Equal to 2 ft irrespective of (for column > 3 ft diameter) 0.6-0.8 times ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Needle valves are generally not used for High pressure throttling service Very large diameter pipes Smaller sizes of pipe Very accurate flow control High pressure throttling service Very large diameter pipes Smaller sizes of pipe Very accurate flow control ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, the overall heat transfer co-efficient is proportional to the tube side (volumetric flow rate)0.8. This is valid, only when the ratio of the tube side film resistance to the total resistance is almost equal to ∞ 2 20.8 1 ∞ 2 20.8 1 ANSWER DOWNLOAD EXAMIANS APP
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