What is "rapid intervention" or backup team practice in advanced fire fighting, and why is it required even when a fire team is already actively engaged?

A. Rapid intervention teams exist solely to relieve the primary team after a fixed time, with no rescue function

B. A second, ready, fully equipped team should be standing by outside the entry point whenever a BA team is committed inside a fire space, prepared to immediately assist or rescue the primary team if something goes wrong (entrapment, injury, equipment failure) — committing a single team with no backup leaves no rescue capability if that team itself gets into trouble

C. A single committed fire team is always sufficient, with no requirement for any standby or backup capability

D. Backup teams are only required on vessels above a certain tonnage threshold, with no relevance to smaller ships

A. AFF and basic fire fighting cover identical content, simply repeated at greater length

B. AFF is required for every single seafarer regardless of muster list role, with no distinction from basic training

C. Basic training covers initial detection, raising the alarm, and using a portable extinguisher on a small incipient fire, while AFF covers organising and leading a coordinated fire-fighting response — including breathing apparatus (BA) entry, ventilation control, boundary cooling, and command of a fire party — required for designated officers and fire team members

D. AFF only applies to passenger vessels and has no relevance to cargo ships

A. Air supply checks are only relevant after the team has already entered the affected space

B. BA entry teams should enter without informing the bridge or control point, to avoid causing alarm

C. No formal entry control or time logging is necessary as long as BA wearers feel confident about their own air supply

D. Each BA wearer's cylinder pressure/air supply duration, the team's entry time, an agreed maximum duration before mandatory withdrawal regardless of air remaining (to allow safety margin for the exit), and a clear communication and tally system so the bridge/control point always knows who is inside and for how long