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) None of these (D₂² - D₁²)/D₁² D₂ - D₁ (D₂² - D₁²)/D₂² None of these (D₂² - D₁²)/D₁² D₂ - D₁ (D₂² - D₁²)/D₂² ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is Less About 3 times About 0.33 times Same Less About 3 times About 0.33 times Same ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers? Equal to tube I.D 6.5 cms 6.5 mm Equal to tube O.D Equal to tube I.D 6.5 cms 6.5 mm Equal to tube O.D ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C. 15000 7500 2500 1250 15000 7500 2500 1250 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the None of these Equal sized reactors are the best Larger reactor should come first Smaller reactor should come first None of these Equal sized reactors are the best Larger reactor should come first Smaller reactor should come first ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.). Ellipsoidal Hemispherical Conical Dished Ellipsoidal Hemispherical Conical Dished ANSWER DOWNLOAD EXAMIANS APP
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