USCG Exam PracticeCargo gear and rigging
A cargo sling is rigged with its legs spread at a wide angle from the vertical. Compared to a narrow-angle rig supporting the same load, the tension in each sling leg will be:
- A. Lower, because the load is distributed across more contact points
- B. The same, because the total weight of the load does not change
- ✓ Higher, because wide sling angles sharply increase the tension in each legCorrect
- D. Higher only if the sling legs are of unequal length
Why C is correct
NAVEDTRA 14343 §8-4 states that as sling legs spread from the vertical, the tension in each leg rises sharply, so wide sling angles greatly increase the load on each leg and its fittings. The load is shared safely only at narrow angles.
Cited:NAVEDTRA 14343 §8-4