Plumbing Quizzes & Trivia

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Enhance your knowledge about a topic or learn something completely new by answering ultimate plumbing quiz questions.

Each and every plumbing quiz that we have is made up of well-researched and interesting quiz questions. With detailed instant feedback for quiz answers, you can easily learn something new about plumbing with every question you attempt.

Plumbing Questions & Answers


Which of the following is used to connect the two ends of two pipes, neither of which can be turned?
The answer is coupling. This is coupling by definition. Coupling definition - connects two pipes to each other.
What is the minimum size of trap and waste branch for a bidet?
The minimum size of the trap and waste branch for a bidet is 2 diameter. It allows sufficient movement and space for adequate function, while not taking up too much space for itself. A bidet is a fancy addition to the toilet, which functions to wash
What a valve permitting a liquid or gas to flow in one direction?
The correct answer to this question is C, Float valve. These valves are heavy duty. They used in many industries, including commercial, agricultural, and industrial. In these industries, they are commonly used in refrigerators, air conditioners, and
What is the name of this model? Water enters through rim punchings and jets placed in an up-leg of the rear trap, filling the trapway and creating an instant siphon action without rise of water...
The correct answer to this question is C, SIPHON-JET. A siphon jet is a pocket which is molded. It appears in front of the toilet and holds extra water. It will keep this water until the toilet is flushed. Siphon jets point into the trap way. Once t
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