A contractor wants to carry out hot work using their own equipment and procedures, separate from the ship's own permit system, while the vessel is in dry dock. Is this acceptable?

A. Permit requirements apply only to the ship's own crew, never to contractors

B. It depends only on the contractor's insurance status

C. No — the ship's (or yard's, by agreement) permit-to-work system must still govern the activity; the contractor's own procedures supplement but do not replace the controlling permit and sign-off process for work on or affecting the vessel

D. Yes — contractors are entirely self-governing once aboard

A. Any task lasting longer than 30 minutes

B. Only welding using electric arc equipment

C. Any work involving an open flame, welding, burning, grinding, or any process that produces sufficient heat or sparks to act as a source of ignition for flammable materials, gases, or vapours

D. Only work carried out inside a cargo tank

A. A clear radius of at least 10 metres (or as defined by the risk assessment for the specific task and materials), with all combustibles removed or adequately shielded

B. No clearance is needed if a fire extinguisher is present

C. Clearance is only relevant for work carried out in an engine room

D. 1 metre is always sufficient regardless of the work type