Generally, elliptical dished heads
A. Are manufactured on 2 : 1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m2
B. Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter
C. Are approximately as strong as seamless cylindrical shell having the corresponding I.D. and O.D.
D. All of the above
Answer: Option D
This Question Belongs to Chemical Engineering >> Process Equipment And Plant Design
Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.
A. $$\frac{1}{8}$$ and $$\frac{1}{{64}}$$
B. $$\frac{1}{{64}}$$ and $$\frac{1}{8}$$
C. $$\frac{1}{2}$$ and 8
D. $$\frac{1}{2}$$ and 5
A. Less than
B. 1.25-1.50 times
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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