USCG Exam PracticeDeck equipment — winches, capstans, windlasses
During a biennial proof load test of cargo gear, at what angle must the boom or derrick be positioned when the proof load is applied?
- A. At the highest practicable angle to maximize mechanical advantage
- B. At a horizontal position, perpendicular to the vessel's centerline
- ✓ At the lowest practicable angleCorrect
- D. At 45 degrees from vertical, as a standardized test position
Why C is correct
46 CFR §28.885(c) specifies that the proof load shall be lifted with the ship's normal tackle with the boom or derrick at the lowest practicable angle. After the load is lifted, it must be swung as far as possible in both directions.
Cited:46 CFR §28.885