Apex angle of conical heads used in the bottom heads of chemical process equipments is usually__________________?
Correct answer: C. 60°
- A. 30°
- B. 45°
- C. 60°
- D. 75°
Explanation
A 60° apex angle is the usual standard for conical bottom heads because it provides effective solids drainage while remaining practical to fabricate and support. The angle is a vessel-design convention rather than a heat- or mass-transfer parameter.
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