NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

Which fitting type shall not be used in fuel-oil piping under NFPA 31 8.2.5.4?

Standard steel pipe fittings. Listed copper-tubing fittings. Cast-iron fittings. Wrought-iron pipe fittings.

Correct Answer:

Cast-iron fittings.

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