If the inside diameter of a sewer pipe is 20 inches and the pipe wall thickness is 1.5 inches, what is the overall diameter of the pipe?

If the inside diameter of a sewer pipe is 20 inches and the pipe wall thickness is 1.5 inches, what is the overall diameter of the pipe?

• A. 21.5 inches
• B. 22.5 inches
• C. 23.0 inches
• D. 24.0 inches

Answer: (C)

To determine the overall diameter of a sewer pipe, you need to account for both the inside diameter and the wall thickness on both sides of the pipe. The inside diameter is the measurement of the space available for fluid flow, while the wall thickness contributes to the pipe's structural integrity and ultimately increases the overall diameter. Given that the inside diameter of the sewer pipe is 20 inches, and the wall thickness is 1.5 inches, the overall diameter is calculated by adding the wall thickness to both sides of the inside diameter. The calculation can be expressed as follows: 1. Start with the inside diameter: 20 inches. 2. Add the wall thickness for one side: 1.5 inches. 3. Add the wall thickness for the other side: 1.5 inches. The overall diameter calculation will be: 20 inches + 1.5 inches (one wall) + 1.5 inches (other wall) = 20 + 1.5 + 1.5 = 20 + 3 = 23 inches. Thus, the overall diameter of the pipe is 23.0 inches, making it the correct answer. This understanding of how to calculate the overall diameter by considering both dimensions is critical in wastewater

To determine the overall diameter of a sewer pipe, you need to account for both the inside diameter and the wall thickness on both sides of the pipe. The inside diameter is the measurement of the space available for fluid flow, while the wall thickness contributes to the pipe's structural integrity and ultimately increases the overall diameter.

Given that the inside diameter of the sewer pipe is 20 inches, and the wall thickness is 1.5 inches, the overall diameter is calculated by adding the wall thickness to both sides of the inside diameter.

The calculation can be expressed as follows:

1. Start with the inside diameter: 20 inches.

2. Add the wall thickness for one side: 1.5 inches.

3. Add the wall thickness for the other side: 1.5 inches.

The overall diameter calculation will be:

20 inches + 1.5 inches (one wall) + 1.5 inches (other wall) = 20 + 1.5 + 1.5 = 20 + 3 = 23 inches.

Thus, the overall diameter of the pipe is 23.0 inches, making it the correct answer. This understanding of how to calculate the overall diameter by considering both dimensions is critical in wastewater