Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid
A. Containing suspended solids flows at low velocity
B. Containing suspended solids flows at high velocity
C. Is highly viscous
D. Is of high specific gravity
Answer: Option A
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Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.
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B. $$\frac{1}{{64}}$$ and $$\frac{1}{8}$$
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D. $$\frac{1}{2}$$ and 5
A. Less than
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C. 2.5 times
D. One-fourth of
Value of Peclet number = 0, is the representative of
A. Laminar flow
B. Complete back mixing
C. Plug flow
D. Eddy diffusivity = 0
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