Red Seal Boilermaker Practice Exam

What is a common use of flanges in industrial applications?

1. To support the structure of machinery

2. To connect and seal pipe systems

3. To insulate electrical components

4. To provide aesthetic enhancements

The correct answer is: To connect and seal pipe systems

Flanges are widely used in industrial applications primarily for connecting and sealing pipe systems. They serve as mechanical components that allow pipes, valves, pumps, and other equipment to be joined together securely. The design of flanges typically includes a flat surface that is bolted to another flat surface, often with a gasket in between to ensure a leak-proof seal. This is particularly important in systems that transport liquids or gases under pressure, as any leakage can lead to safety hazards and operational inefficiencies. In contrast, while supporting the structure of machinery and insulating electrical components are essential functions in various contexts, these tasks are not the primary use of flanges. Additionally, aesthetic enhancements are not typically associated with the functional purpose of flanges, as their design is largely dictated by mechanical requirements rather than visual appeal. Therefore, the primary role of flanges in connecting and sealing is crucial in maintaining the integrity and efficiency of pipe systems in industrial settings.