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______ 1. The drainage system is sometimes referred to as the _________

A. DVW C. WDV
B. DWV D. VDW
______ 2. Drainage pipes should be __________ or graded properly.
A. Curved C. Sloped
B. Horizontal D. Vertical
______ 3. ___________ receives clear water or surface water wastes.
A. Domestic drain C. Storm drain
B. Sanitary drain D. Water drain

______ 4. The ___________ water discharges from the roof and conveys it to

the storm drainage line.
A. Catch basin C. Sanitary drain
B. House drain D. Storm drain

______ 5. It also serves as a manhole for cleaning.

A. Catch basin C. Sanitary drain
B. House drain D. Storm drain