Process Equipment and Plant Design In the design of a shell and tube heat exchanger, the corrosion allowance For internal cover and tube sheet is provided on both the sides Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm All of these For internal cover and tube sheet is provided on both the sides Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm All of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent. 20 55 5 35 20 55 5 35 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 2 43834 4 43832 2 43834 4 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The normal range of velocity of water in pipes is __________ m/sec. 15-30 10-50 1-2 0.1-0.5 15-30 10-50 1-2 0.1-0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is Cither A or B; depends upon the I.D. of the pipe Less Same More Cither A or B; depends upon the I.D. of the pipe Less Same More ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The main purpose of providing stepping on the trays is to Decrease the pressure drop Improve the flow condition Increase the residence time Facilitate handling of large flow rate of liquid Decrease the pressure drop Improve the flow condition Increase the residence time Facilitate handling of large flow rate of liquid ANSWER DOWNLOAD EXAMIANS APP
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