Maintenance Technician Practice Test 2025 - Free Maintenance Technician Practice Questions and Prep Guide

Question: 1 / 400

What is the purpose of a coupling in plumbing?

To connect pipes at an angle

To adjust pipe length

To join two pipes in a straight line

The purpose of a coupling in plumbing is primarily to join two pipes in a straight line, which is essential for creating a continuous flow in the plumbing system. Couplings are fittings that allow for the seamless connection of pipe segments, enabling the transfer of water or other liquids without leaks. This function is critical for maintaining the integrity and efficiency of the plumbing system.

When considering the other options, connecting pipes at an angle is typically achieved using elbows or bends instead of couplings. Adjusting pipe length often involves using tools like pipe cutters or length adjusters rather than couplings. Creating a branch in a line is usually accomplished with a tee fitting, as it allows for splitting the flow into different directions rather than simply extending a straight connection.

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To create a branch in the line

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