Saddle supports are deployed for mounting _____________ vessels?
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Answer: A. Horizontal cylindrical
Explanation
Horizontal cylindrical vessels are typically supported using specially shaped saddle supports to distribute loads evenly across the shell. Option A correctly identifies horizontal cylindrical vessels as the specific equipment type requiring saddle supports. Saddles wrap partially around the vessel circumference to eliminate high local bending stresses that would occur with point supports. Horizontal pressure vessels act essentially as long beams subjected to dead weight, fluid loads, and internal pressure. Saddle supports are usually fabricated with a contact angle of at least 120 degrees to minimize localized shell stresses. Wear plates are often welded between the saddle and the vessel shell to prevent localized thinning from thermal expansion.
Options B, C, and D refer to vertical or spherical configurations that require completely different structural mounting systems. Tall vertical columns are supported by skirt foundations or support lugs to withstand wind and seismic forces. Spherical storage tanks utilize multiple inclined column legs welded symmetrically around the equator of the sphere.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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