What is the first step in installing compression joints for ductile iron pipe?

• A. Measure the pipe
• B. Cut the ductile iron pipe to length
• C. Install the seal
• D. Align the joints

Answer: (B)

The first step in installing compression joints for ductile iron pipe is to cut the ductile iron pipe to the required length. This is a foundational step because properly sized pipes are essential for ensuring a correct fit when assembling the joints. If the pipe is not cut to the appropriate length, it can lead to alignment issues, improper seals, or even potential leaks at the joint connection.

Measuring the pipe is important, but it typically precedes the cutting step to ensure precision. After cutting the pipe, the subsequent steps, such as installing seals and aligning the joints, can be adequately performed. Thus, cutting the pipe to length is crucial before any other installation processes begin, ensuring the subsequent installation steps are performed on properly sized pieces.