According to Coast Guard Regulations (46 CFR), which of the following steam piping conditions, subjected to main boiler pressure, is exempted from hydrostatic testing?

Question

Accepted Answer

All piping with a nominal size of 3 inches or less.

Answer

All piping from the main steam stop to the throttle valve.

Answer

All piping to the ship's service generators.

Answer

All piping equipped with a safety or relief valve.

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