Motor Plants & Auxiliary Boilers USCG Q#1362 (Set 27)

Which letter represents the scavenging air system non-return valve in the illustration? Illustration MO-0003

USCG Exam Illustration MO-0003 — USCG Examination Diagram: **Illustration MO-0003**

Official USCG Answer & Rule Citation

Correct Answer: Option A — P

Letter P designates the scavenging air system non-return valve, preventing reverse exhaust gas flow and pressure pulsations from entering the air receiver header.

All Motor Plants & Auxiliary Boilers Sets Practice Set 27