Process Equipment and Plant Design Needle valves are generally not used for Very large diameter pipes Smaller sizes of pipe High pressure throttling service Very accurate flow control Very large diameter pipes Smaller sizes of pipe High pressure throttling service Very accurate flow control ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by (p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²/4)/πd 4(0.86p² - πd²)/πd (p² - πd²/4)/πd (4p² - πd²/4)/πd 4(0.86p² - πd²/4)/πd 4(0.86p² - πd²)/πd ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Generally, as the length of the liquid path on a tray is increased beyond 5 ft, the overall column efficiency Decreases Remains same May increase or decrease depending upon the plate spacing Increases Decreases Remains same May increase or decrease depending upon the plate spacing Increases ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if Wall thickness is > 30 mm Plain carbon steel and cast iron parts are used Both B & C Material of construction is high alloy steel Wall thickness is > 30 mm Plain carbon steel and cast iron parts are used Both B & C Material of construction is high alloy steel ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Value of Peclet number = ∞, is the representative of Eddy diffusivity = 0 Complete back mixing Laminar flow Plug flow Eddy diffusivity = 0 Complete back mixing Laminar flow Plug flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of a 'thin' pressure vessel, the ratio of its diameter to wall thickness is < 10 > 20 30 > 10 < 10 > 20 30 > 10 ANSWER DOWNLOAD EXAMIANS APP
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