Question 1

Why is nylon rope generally preferred for anchor rodes and mooring lines, rather than polyester (Dacron)?

Accepted Answer

Nylon stretches significantly under load, absorbing shock loading from waves and snubbing — exactly what's needed to protect ground tackle and cleats from sudden jerking loads Nylon's elasticity is the whole point for anchor and mooring use — it stretches under a sudden load (a wave lifting the bow, a gust snatching a mooring line) and absorbs the shock rather than transmitting a sharp jerk straight to the cleat or anchor. Polyester's low stretch is actually why it's preferred for halyards and sheets instead, where you want minimal stretch for sail control.

Question 2

You're asked to test a deck crane grab after electrical repairs nearby. As the grab is hoisted, what should have happened first?

Accepted Answer

The area within the grab's swing radius should be cleared of personnel before the lift On the bulk carrier Fairfield Eagle, a crew member working nearby was struck and fatally injured when a grab being test-lifted after repairs swung unexpectedly. The investigation found the area should have been cleared and barriered before the test lift began.

Question 3

A toolbox talk held before a lifting operation should explicitly cover which of the following?

Accepted Answer

Who must remain clear of the exclusion zone while the lift takes place A toolbox talk exists to make sure everyone present understands the danger zones, the abort signal, and — critically — who must not be in the area while the lift happens. The RMIMA investigation into the Fairfield Eagle fatality found the toolbox talk had not made this clear.