USCG Exam PracticeCargo gear and rigging
During a proof load test required by 46 CFR §28.885, at what angle must the boom or derrick be positioned when the proof load is applied?
- A. At the highest practicable angle to maximize reach
- B. At 45 degrees from the horizontal
- ✓ At the lowest practicable angleCorrect
- D. Plumb vertical over the hatch centerline
Why C is correct
46 CFR §28.885(c) specifies that the proof load shall be lifted with the boom or derrick at the lowest practicable angle, which places the greatest stress on the gear. After the load is lifted, it must be swung as far as possible in both directions.
Cited:46 CFR §28.885