Question 1

As little as 0.14 litres of fuel leaked into the air pocket beneath the capsized hull over roughly 17 minutes. What did TAIC find this was enough to cause?

Accepted Answer

Exposure levels sufficient to cause confusion, unconsciousness and death, consistent with symptoms found in all five deceased passengers TAIC calculated that this small volume of fuel, vented into the enclosed 3.67 cubic metre air pocket, could produce toxic exposure levels within the 17-minute window before rescue — and all five deceased passengers showed symptoms consistent with petrol exposure.

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.