The fastest and most efficient way of laying sewer pipe with screw type rubber couplings involves how many workers in the ditch?

The fastest and most efficient way of laying sewer pipe with screw type rubber couplings involves how many workers in the ditch?

• A. Two
• B. Three
• C. Four
• D. Five

Answer: (B)

Fast, efficient laying of sewer pipe with screw-type rubber couplings depends on having a small, well-coordinated team in the trench. Three workers in the ditch allows one person to keep the pipe ends aligned and seated, a second to position and install the rubber coupling and start tightening the screws, and a third to handle the next pipe length, pass tools, and help with final alignment as each joint is completed. This arrangement minimizes downtime between steps, keeps the flow of pipe segments continuous, and helps ensure the joint seats squarely and the screws are tightened promptly, reducing the chance of misalignment or leaks. With only two workers, one would have to split duties, slowing progress; with more than three, the trench becomes crowded and coordination suffers, reducing speed and increasing safety risk.

Fast, efficient laying of sewer pipe with screw-type rubber couplings depends on having a small, well-coordinated team in the trench. Three workers in the ditch allows one person to keep the pipe ends aligned and seated, a second to position and install the rubber coupling and start tightening the screws, and a third to handle the next pipe length, pass tools, and help with final alignment as each joint is completed. This arrangement minimizes downtime between steps, keeps the flow of pipe segments continuous, and helps ensure the joint seats squarely and the screws are tightened promptly, reducing the chance of misalignment or leaks. With only two workers, one would have to split duties, slowing progress; with more than three, the trench becomes crowded and coordination suffers, reducing speed and increasing safety risk.