Standing baffle walls incorporate lower 15 cm × 15 cm openings designed to________________?
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Answer: B. 22.5 cm c/c
Explanation
Standing baffle wall openings are spaced at specific standard intervals to ensure proper flow distribution in sedimentation tanks. The correct center-to-center spacing measurement ensures hydraulic efficiency and prevents short-circuiting within the treatment basin. Option B is the standard specification utilized in professional environmental engineering design manuals for water treatment. Baffle walls are internal partitions used in water treatment facilities to direct fluid flow and improve mixing characteristics. Standard measurement units in civil engineering drawings are expressed in centimeters for precise fabrication and installation control. Sedimentation tanks rely on uniform velocity profiles to allow suspended particles to settle out of water effectively.
Option A suggests a closer spacing interval which does not match standard engineering design specifications for these baffles. Option C proposes a wider spacing dimension that would fail to distribute hydraulic flow evenly across the sedimentation basin. Option D specifies an excessively large spacing value that would compromise the structural integrity and baffling performance.
- Subject
- Engineering
- Category
- Civil Engineering
- Topic
- —
- Difficulty
- medium
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