At what height above the floor surface is a wash basin sink usually installed____________________?
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Answer: C. 75 cm to 80 cm
Explanation
Wash basin sinks are standardly installed at a height of 75 cm to 80 cm above the finished floor. This specific height range accommodates average human ergonomics for comfortable everyday handwashing. Installing wash basins within this vertical window prevents user strain and back discomfort. Plumbing installation codes specify fixture mounting heights based on anthropometric human body measurements. Finished floor level serves as the consistent reference datum for all interior vertical measurements. Accessible design standards sometimes adjust these heights for children or individuals using wheelchairs.
Proper plumbing fixture placement ensures user comfort in residential, commercial, and institutional restrooms. Plumbers follow these standard height guidelines during rough-in and fixture installation phases. Ergonomic fixture design prevents repetitive strain injuries for people using public washrooms daily. Installing a wash basin at 60 cm is too low for adults and causes uncomfortable bending. A mounting height of 70 cm remains slightly below optimal ergonomic standards for general use. Restricting the installation height to a single fixed 80 cm ignores the accepted standard range.
- Subject
- Engineering
- Category
- Civil Engineering
- Topic
- —
- Difficulty
- medium
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