Process Equipment and Plant Design If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of D/5 or minimum 2" to 5D D/5 or minimum 2" to D D/2 or minimum 2" to 5D None of these D/5 or minimum 2" to 5D D/5 or minimum 2" to D D/2 or minimum 2" to 5D None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) Η = 1.66 - 0.25 log μ Η = 24.6 (Δp/μ) Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 24.6 (Δp/μ) Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes) None of these D₂ - D₁ (D₂² - D₁²)/D₁² (D₂² - D₁²)/D₂² None of these D₂ - D₁ (D₂² - D₁²)/D₁² (D₂² - D₁²)/D₂² ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Of the pressure vessels, with same thickness but different diameters, which one withstands higher pressure? Larger dia long vessel Larger dia vessel Strength of the vessel is same irrespective of the diameter Smaller dia vessel Larger dia long vessel Larger dia vessel Strength of the vessel is same irrespective of the diameter Smaller dia vessel ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An underdesigned steam trap will Waste steam Destroy itself of acceleration wear due to rapid recycling None of these Back up condensate and cause water hammer in steam line Waste steam Destroy itself of acceleration wear due to rapid recycling None of these Back up condensate and cause water hammer in steam line ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, tube side __________ of the mass velocity. Both A & B Heat transfer co-efficient is proportional to 0.8th power Pressure drop is proportional to the square Neither A nor B Both A & B Heat transfer co-efficient is proportional to 0.8th power Pressure drop is proportional to the square Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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