NV C-21G Industrial Piping Practice Questions - Nevada C-21G Industrial Piping Contractor Examination Exam

Threaded steel joints on C-21G industrial water, steam, and fuel-gas piping under the 2018 UPC/UMC shall be made with:

Straight (running) machine threads with no taper Standard taper pipe threads (NPT) and an approved thread compound or tape on the male threads Hose-barb threads sealed with electrical tape Metric parallel threads pulled up dry

Correct Answer:

Standard taper pipe threads (NPT) and an approved thread compound or tape on the male threads

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