Red Seal Steamfitter/Pipefitter Practice Exam

What is the primary function of a pipe hanger?

1. To allow pipes to expand

2. To support and secure pipes

3. To connect two different pipe sizes

4. To enhance water flow

The correct answer is: To support and secure pipes

The primary function of a pipe hanger is to support and secure pipes in place. Pipe hangers are essential components in piping systems, as they hold the weight of the pipes and maintain the alignment of the system. This support is crucial to minimize the risk of sagging or bending, which could lead to damage or failure of the pipework. Properly installed hangers help to ensure the integrity of the system, maintain proper alignment, and prevent undue stress on joints and fittings. While allowing pipes to expand is important, this is typically managed through other means, such as expansion joints or guides that permit movement while still providing support. Connecting two different pipe sizes refers to the function of fittings rather than hangers. Enhancing water flow is influenced by the design of the piping system, including the sizing and layout of the pipes, rather than the support mechanism provided by hangers.