Process Equipment and Plant Design Floating head heat exchangers are used for the Cases where temperature difference between the shell and the tubes is more (>50°C) Counter-current heat transfer systems Co-current heat transfer systems Heat transfer between corrosive fluids Cases where temperature difference between the shell and the tubes is more (>50°C) Counter-current heat transfer systems Co-current heat transfer systems Heat transfer between corrosive fluids ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is pd/4t pd/2t pd/t pd/8t pd/4t pd/2t pd/t pd/8t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps. 1.6 to 2 1.3 to 2 2.5 1.5 to 3 1.6 to 2 1.3 to 2 2.5 1.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.) -q/(1-q) None of these -q -q/(q-1) -q/(1-q) None of these -q -q/(q-1) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate. 2 43832 43834 4 2 43832 43834 4 ANSWER DOWNLOAD EXAMIANS APP
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)/D₁² D₂ - D₁ (D₂² - D₁²)/D₂² None of these (D₂² - D₁²)/D₁² D₂ - D₁ (D₂² - D₁²)/D₂² None of these ANSWER DOWNLOAD EXAMIANS APP
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