USCG Exam PracticeEngine-room safety and hazardous materials
Under 46 CFR §182.430, a nonmetallic hose used in a wet exhaust system must meet which combination of requirements?
- A. It must be Schedule 80, double clamped, and constructed of corrosion-resistant material
- ✓ It must be especially adapted to resist oil, acid, and heat; have sufficient wall thickness to prevent collapsing or panting; and be double clamped where practicableCorrect
- C. It must be flexible metallic hose listed under ABYC P-1 and supported by noncombustible hangers
- D. It must be welded at all bulkhead penetrations and have a wall thickness of at least 6 millimeters
Why B is correct
46 CFR §182.430(e) permits nonmetallic hose in wet exhaust systems provided it is especially adapted to resist the action of oil, acid, and heat; has a wall thickness sufficient to prevent collapsing or panting; and is double clamped where practicable. Schedule 80 is the requirement for pipes in wet exhaust lines under §182.430(d), not for nonmetallic hose.
Cited:46 CFR §182.430