Question 1

The chief officer's Enclosed Space Entry Permits recorded 30 minutes to test the atmosphere of six cargo tanks at three levels each using benzene detector tubes. Based on the manufacturer's instructions for those tubes, what was actually required?

Accepted Answer

Roughly three hours for all six tanks Each benzene detector tube test required ten minutes (five pump strokes, two minutes apart), at three levels per tank, across six tanks — roughly three hours. RMI's investigation concluded the recorded readings could not have come from proper testing in the time available.

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.