Process Equipment and Plant Design Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube. 1.25 2.5 1.75 3.5 1.25 2.5 1.75 3.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of (1.2)3/5 (1.2)2/3 (1.2)3/2 (1.2)5/3 (1.2)3/5 (1.2)2/3 (1.2)3/2 (1.2)5/3 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method Accounts for the enthalpy changes in the process Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method All of these Is more accurate in finding the number of equilibrium stages Accounts for the enthalpy changes in the process Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method All of these Is more accurate in finding the number of equilibrium stages ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure? None of these At the outer surface At the mid thickness of the cylindrical wall At the inner surface None of these At the outer surface At the mid thickness of the cylindrical wall At the inner surface 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 0.07 - 0.12 0.5 - 1.0 43833 0.01 - 0.5 0.07 - 0.12 0.5 - 1.0 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? 0.9 1 0.8 (0.8)0.5 0.9 1 0.8 (0.8)0.5 ANSWER DOWNLOAD EXAMIANS APP
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