Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Employs high velocity, high heat transfer rate and less heating surface requirement Is economical in operation Both B & C Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Employs high velocity, high heat transfer rate and less heating surface requirement Is economical in operation Both B & C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as Δp = 1/G0.6 Δp = G Δp = G2 Δp = G0.5 Δp = 1/G0.6 Δp = G Δp = G2 Δp = G0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for a Tee (used as elbow, entering branch) would be Less than that for Tee (used as elbow, entering run) More than that for Tee (used as elbow, entering run) Around 90 Both B and C Less than that for Tee (used as elbow, entering run) More than that for Tee (used as elbow, entering run) Around 90 Both B and C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Baffles may be eliminated for None of these High viscosity liquids (> 600 poise) Low viscosity liquids (< 200 poise) Large diameter tanks None of these High viscosity liquids (> 600 poise) Low viscosity liquids (< 200 poise) Large diameter tanks ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the Working stress to ultimate stress Ultimate stress to working stress Ultimate stress to breaking stress None of these Working stress to ultimate stress Ultimate stress to working stress Ultimate stress to breaking stress None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is 0.5 0.25 0.75 1.25 0.5 0.25 0.75 1.25 ANSWER DOWNLOAD EXAMIANS APP
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