Following a suspected collision, the OOW reports he is unsure whether the hull has actually been holed. Your examiner asks: "As Chief Mate, how do you use the damage stability information/booklet to assess the situation?"

A. Identify which compartment(s) are suspected of flooding from soundings/visual evidence, locate the corresponding pre-calculated damage case in the approved damage stability booklet (or run the loaded computer stability program's damage case if fitted), compare the predicted resulting list/trim/GM/freeboard against what is actually being observed (draft gauges, inclinometer) to confirm or rule out flooding, and use the predicted residual stability to decide on any corrective action (e.g. counter-flooding, ballast adjustment) before it becomes urgent.

B. The damage stability booklet is a historical class survey document with no operational use during an actual incident.

C. Damage stability booklets contain only structural drawings, with no stability/list/trim predictions usable during an emergency.

D. The booklet can only be consulted by a naval architect ashore; ship's staff have no authority to interpret it during an incident.

A. Report it immediately to the bridge/Master — do not wait to "confirm" the problem alone — note the apparent quantity/rate of ingress if safely observable, avoid taking any action (e.g. opening further compartments to investigate) that could inadvertently worsen flooding or compromise watertight integrity elsewhere, and stand by for instructions while keeping the area under observation if it is safe to do so.

B. Attempt to fully diagnose and resolve the source of ingress alone before reporting, to avoid raising a false alarm.

C. No report is necessary unless the water level visibly rises during the time you happen to be observing it.

D. Open adjacent compartments immediately to inspect for similar flooding, before reporting the initial finding.

A. Damage stability standards scale with vessel size, type and the consequence of loss — larger vessels and those carrying passengers represent a greater potential loss of life and asset value if lost, and (generally) have more internal volume/length available to provide additional subdivision, so regulations require them to survive a more demanding flooding scenario (e.g. two or more compartments) rather than the less demanding standard that might apply to a smaller vessel.

B. Vessel size has no bearing on the number of compartments a damage stability standard requires the vessel to survive; the same fixed number applies to every ship regardless of size or passenger status.

C. Smaller vessels are required to survive more simultaneously flooded compartments than larger ones, since they have less reserve buoyancy.

D. Passenger-carrying status has no bearing on damage stability standards; only cargo-carrying capacity is relevant.