What is a mechanical means to remove material from a sewer?

What is a mechanical means to remove material from a sewer?

• A. Pumping
• B. Cutting
• C. Herbicides
• D. Sweeping

Answer: (B)

Mechanically removing material from a sewer means using physical action to break up or sever debris so it can be cleared or pass through. Cutting devices physically slice or chop solids like roots, rags, or hard deposits, reducing their size and allowing removal or flow to resume. This is different from pumping, which moves liquids; herbicides, which use chemicals; or sweeping, which cleans surfaces rather than inside the sewer. Cutting is the practical mechanical method for handling solid obstructions in the sewer system.

Mechanically removing material from a sewer means using physical action to break up or sever debris so it can be cleared or pass through. Cutting devices physically slice or chop solids like roots, rags, or hard deposits, reducing their size and allowing removal or flow to resume. This is different from pumping, which moves liquids; herbicides, which use chemicals; or sweeping, which cleans surfaces rather than inside the sewer. Cutting is the practical mechanical method for handling solid obstructions in the sewer system.