Engineering · Auxiliary — Air Compressors
Air receivers (start-air bottles) must be drained of condensate regularly because accumulated water:
- AIncreases stored air pressure
- BReduces air capacity, promotes corrosion, and can be carried into the engine✓ Correct
- CImproves lubrication
- DCools the receiver
Explanation
Moisture condenses as air cools in the receiver. Draining it preserves usable air volume, prevents internal corrosion, and keeps water and oil out of the air-start system.
Authority: Auxiliary Machinery (USCG engineering topic)
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