‘Dikes’ are low retaining walls built around containers holding flammable and hazardous substances (such as petroleum). The required volume for these dikes equals (where V = storage vessel volume)?
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Answer: A. V
Explanation
Environmental regulations mandate secondary containment dikes around hazardous liquid storage tanks. The mandated containment volume must equal the total capacity of the primary storage vessel. This ensures complete retention of the stored chemical if a catastrophic tank rupture occurs. Dikes are low retaining walls constructed of concrete or compacted earth around petroleum facilities. Secondary containment prevents toxic spills from contaminating surrounding soil and groundwater supplies. Volumetric design calculations use the total storage vessel volume designated as V.
Refineries and chemical plants strictly adhere to safety codes to prevent environmental disasters. Facility safety audits inspect containment structures to verify compliance with government regulations. Proper engineering design protects both surrounding ecosystems and nearby human populations. A volume of V over two would leave half of a spilled chemical uncontained. Requiring two times the vessel volume is excessive according to standard regulatory codes. Tripling the containment capacity is unnecessary and economically inefficient for standard designs.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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