MCC-NH Gas Fitters Practice Exam

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Prepare for the MCC-NH Gas Fitters Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Is PVC allowed to be used as gas piping?

Yes, for all applications
No, it can only be used for vent piping
Yes, only underground
No, but it is allowed in above-ground applications

The correct answer is: No, it can only be used for vent piping

PVC, or polyvinyl chloride, is not permitted for use as gas piping due to safety concerns. The correct answer states that it can only be used for vent piping. This is because gas piping must be constructed from materials that can withstand the pressures and potential temperature fluctuations associated with gas distribution, and PVC is not suitable for these applications. Instead, it is typically used for venting applications, where the temperature and pressure conditions are much less severe and where it can safely handle the byproducts of combustion without causing a hazard. The other choices suggest that PVC might be used in various capacities related to gas distribution; however, that would not comply with safety regulations and standards in gas fitting, which prioritize materials specifically designed for handling gas.