Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Both B & C Is economical in operation Employs high velocity, high heat transfer rate and less heating surface requirement Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Both B & C Is economical in operation Employs high velocity, high heat transfer rate and less heating surface requirement ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Friction factor for turbulent flow in a new pipe is given by f = 0.22 NRe0.05 f = 16/NRe f = 0.04/NRe0.16 f = 25/NRe f = 0.22 NRe0.05 f = 16/NRe f = 0.04/NRe0.16 f = 25/NRe ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The operating pressure drop range in a bag filter is about __________ mm water gauge. 500-1500 50-150 43961 1500-2500 500-1500 50-150 43961 1500-2500 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter. Equal to 0.6-0.8 times Twice 2 ft irrespective of (for column > 3 ft diameter) Equal to 0.6-0.8 times Twice 2 ft irrespective of (for column > 3 ft diameter) 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. 43832 43834 2 4 43832 43834 2 4 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times. About 9 Considerably less than 9 About 3 Considerably more than 9 About 9 Considerably less than 9 About 3 Considerably more than 9 ANSWER DOWNLOAD EXAMIANS APP
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