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) (D₂² - D₁²)/D₂² D₂ - D₁ (D₂² - D₁²)/D₁² None of these (D₂² - D₁²)/D₂² D₂ - D₁ (D₂² - D₁²)/D₁² None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used? (0.8)0.5 0.8 1 0.9 (0.8)0.5 0.8 1 0.9 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of bubble cap distillation column of diameter greater than 1.2 metres, the cap diameter is roughly about __________ cms. 10 35 30 20 10 35 30 20 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Bubble cap tray is the most commonly used tray in large distillation column, because It incurs less pressure drop as compared to any other try designed for the same duty Of its flexibility and nearly constant efficiency under varying conditions of operation It eliminates the foaming and entrain-ment tendency during operation None of these It incurs less pressure drop as compared to any other try designed for the same duty Of its flexibility and nearly constant efficiency under varying conditions of operation It eliminates the foaming and entrain-ment tendency during operation None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger? 25% cut segmental baffle 75% cut segmental baffle Disk and doughnut baffle Orifice baffle 25% cut segmental baffle 75% cut segmental baffle Disk and doughnut baffle Orifice baffle ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For turbulent flow (NRe > 2100) of low viscosity fluid (μ > 20cp) in steel pipes, the optimum inside pipe diameter is given by(where, Q = fluid flow rate, ft³/sec.ρ = fluid density, lb/ft³ μ = fluid viscosity, centipoise Di = optimum inside pipe diameter, inches) Di, opt = 3.9 Q0.45 ρ0.13 Di, opt = 3.9 Q0.45 . μ0.95 Di, opt = 3 Q0.36 . μ0.88 Di, opt = 4.7 Q0.36 . μ3.2ρ0.13 Di, opt = 3.9 Q0.45 ρ0.13 Di, opt = 3.9 Q0.45 . μ0.95 Di, opt = 3 Q0.36 . μ0.88 Di, opt = 4.7 Q0.36 . μ3.2ρ0.13 ANSWER DOWNLOAD EXAMIANS APP
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