Process Equipment and Plant Design Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from 3.5-5.5 44119 1.5-2.5 7.5-10.0 3.5-5.5 44119 1.5-2.5 7.5-10.0 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A cylinderical pressure vessel of volume 6 πm³ has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm² and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to 6 mm 8 mm 10 mm 5 mm 6 mm 8 mm 10 mm 5 mm ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a multiple effect evaporator system having 'n' effects, the amount of water evaporated per unit surface area in approximately equal to __________ times that in a single effect. (1/n)th 1.5 nth 0.5 nth nth (1/n)th 1.5 nth 0.5 nth nth ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a heat exchanger, shell side fluid velocity can be changed by changing the tube Both A & B Layout Pitch Neither A nor B Both A & B Layout Pitch Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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 3.5 2.5 1.75 1.25 3.5 2.5 1.75 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be Less than that for fluid flow More than that for fluid flow Same as that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) Less than that for fluid flow More than that for fluid flow Same as that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) ANSWER DOWNLOAD EXAMIANS APP
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