USCG Exam PracticeBoiler and steam propulsion fundamentals
Under 46 CFR §63.20-1, following an emergency safety trip of an automatic auxiliary boiler, which of the following correctly describes the required postpurge procedure?
- A. Postpurge must be accomplished automatically with air flow increasing to maximum
- B. Postpurge is not required following an emergency safety trip
- ✓ Postpurge must be accomplished manually, and air flow must not automatically increase after the tripCorrect
- D. Postpurge must be accomplished automatically at low fire rate only
Why C is correct
46 CFR §63.20-1(a) states that following emergency safety trip control operation, air flow to the boiler must not automatically increase, and postpurge must be accomplished manually. Automatic postpurge with increasing airflow is specifically prohibited in this scenario. (46 CFR §63.20-1)
Cited:46 CFR §63.20-1