Process Equipment and Plant Design Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor. 35-40 43961 15-20 30-35 35-40 43961 15-20 30-35 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop per tray in the atmospheric distillation column is about __________ psi. 43833 0.01 - 0.5 0.5 - 1.0 0.07 - 0.12 43833 0.01 - 0.5 0.5 - 1.0 0.07 - 0.12 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Value of Peclet number = ∞, is the representative of Eddy diffusivity = 0 Plug flow Complete back mixing Laminar flow Eddy diffusivity = 0 Plug flow Complete back mixing Laminar flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter. 10 to 15 5 to 10 2.5 to 5 1.5 to 2 10 to 15 5 to 10 2.5 to 5 1.5 to 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a vertical short tube evaporator (Calendria type), the Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used Liquor is inside the tube while the steam is outside the tube All of these Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used Liquor is inside the tube while the steam is outside the tube All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 12 6 18 34 12 6 18 34 ANSWER DOWNLOAD EXAMIANS APP
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