When one of the fluids is highly corrosive and has fouling tendency, i – McqOptions

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1.	When one of the fluids is highly corrosive and has fouling tendency, it should_____________________?
A.	Preferably flow inside the tube for its easier internal cleaning
B.	Preferably flow outside the tube
C.	Flow at a very slow velocity
D.	Flow outside the tube, when the flow is counter-current and inside the tube when the flow is co-current
Answer» B. Preferably flow outside the tube

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