Process Equipment and Plant Design Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer). 250 450 750 650 250 450 750 650 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter. 1.5 to 2 10 to 15 5 to 10 2.5 to 5 1.5 to 2 10 to 15 5 to 10 2.5 to 5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law. None of these Positive No Negative None of these Positive No Negative ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Speed of the drum of the rotary vacuum filter normally ranges from __________ rpm. 5 to 7 3 to 8 8 to 15 0.1 to 2 5 to 7 3 to 8 8 to 15 0.1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For laminar flow (NRe < 2100) in steel pipe, the optimum inside pipe diameter is given by Di, opt = 3 Q0.36 . ρ1.86 μ0.08 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3.9 Q0.45 . ρ0.23 Di, opt = 3 Q0.36 . ρ1.86 μ0.08 Di, opt = 3 Q0.36 ρ0.18 Di, opt = 7.6 Q0.36 . ρ0.9 Di, opt = 3.9 Q0.45 . ρ0.23 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 5 and 10 45 and 75 300 and 500 180 and 300 5 and 10 45 and 75 300 and 500 180 and 300 ANSWER DOWNLOAD EXAMIANS APP
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