Grade on a 6" pipe?

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Prepare for the 3rd Year Electrical Trades Qualification (TQ) exam. Use flashcards and multiple choice questions to master the material. Each question comes with hints and explanations to help you succeed. Get set for your qualification!

Multiple Choice

Grade on a 6" pipe?

Explanation:
Grade here means the slope of the pipe—the vertical drop per horizontal length for gravity flow. For a 6" drainage pipe, the standard slope is about 1:100, which is a 1% grade. That translates to a drop of 0.01 ft per 1 ft, or roughly 0.12 inches per foot. In practice this is commonly rounded to 1/8 inch per foot. So the best match is 1:100, or about 1/8 inch per foot. Slopes like 1:80, 1:50, or 1:200 would be noticeably steeper or shallower and not the typical grade used for a 6" line.

Grade here means the slope of the pipe—the vertical drop per horizontal length for gravity flow. For a 6" drainage pipe, the standard slope is about 1:100, which is a 1% grade. That translates to a drop of 0.01 ft per 1 ft, or roughly 0.12 inches per foot. In practice this is commonly rounded to 1/8 inch per foot. So the best match is 1:100, or about 1/8 inch per foot. Slopes like 1:80, 1:50, or 1:200 would be noticeably steeper or shallower and not the typical grade used for a 6" line.

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