Home Builders Institute Pre-Apprenticeship Certificate Training (HBI-PACT) Practice Test

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Which of the following is a common fitting used in Plumbing?

Joist Hangers
Compression Fittings
Duct Tape
Angle Brackets

The correct answer is: Compression Fittings

Compression fittings are widely used in plumbing for connecting two pipes together. They create a secure and watertight seal by using an outer nut to compress a ring within the fitting against the pipe, which effectively prevents leaks. This type of fitting is particularly beneficial for connecting pipes of different materials, such as copper to PVC or CPVC, and is favored for its ease of installation and the ability to disassemble without damaging the pipes. In comparison, options like joist hangers and angle brackets are primarily associated with structural applications in construction, such as supporting framing members rather than plumbing. Duct tape, while commonly used for temporary fixes, does not provide a reliable or permanent seal suitable for plumbing connections where durability and leak prevention are crucial. Therefore, compression fittings stand out as a fundamental component in the plumbing trade.