[amp_mcq option1=”A trunk sewer” option2=”An outfall sewer” option3=”A main sewer” option4=”An intercepting sewer” correct=”option1″]
The correct answer is: A. A trunk sewer.
A trunk sewer is a sewer that receives discharge from two or more main sewers. It is a large sewer that carries wastewater from a large area to a treatment plant or to a point where it can be discharged into a body of water.
A main sewer is a sewer that collects wastewater from a smaller area and discharges it into a trunk sewer.
An outfall sewer is a sewer that discharges wastewater directly into a body of water.
An intercepting sewer is a sewer that intercepts surface runoff and storm water and carries it to a treatment plant or to a point where it can be discharged into a body of water.