What is a known hazard specifically associated with on-load release hooks on davit-launched lifeboats, and why does PSCRB training emphasise it?

A. On-load release hooks have never been associated with any safety incidents and require no particular caution

B. On-load release is purely a theoretical feature never actually used or trained on in practice

C. On-load release mechanisms are identical in design and operation across all lifeboat manufacturers, requiring no model-specific training

D. On-load release mechanisms (which allow the boat to be released from the falls while still under load/weight, used in rough seas) have been involved in a number of serious accidents historically due to accidental or premature activation — PSCRB training places significant emphasis on correct operation, interlocks, and never releasing prematurely, precisely because of this real incident history

A. PSCRB is required for every seafarer regardless of muster list role, with no distinction from PST

B. PSCRB only covers liferafts, while PST covers lifeboats — the two trainings simply split equipment types

C. PST gives every seafarer the basic personal survival skills needed to use equipment and survive once in a liferaft, while PSCRB is a separate, more advanced certificate required for crew specifically designated on the muster list to launch, command, or operate lifeboats and rescue boats — including davit operation, engine handling, and craft manoeuvring

D. PSCRB and PST cover identical content and are simply two names for the same training

A. Occupants should stand and hold the gunwale for stability during the lowering process

B. The area below and around the lifeboat is clear of obstructions and personnel not involved in launching; the falls (wires) are correctly led and free to run; the brake mechanism is functioning; occupants are seated and braced correctly; and there is clear communication established between the person controlling the davit and anyone in the boat

C. No pre-launch checks are necessary as long as the davit mechanism appears undamaged on visual inspection

D. Only the lifeboat's engine needs checking before launch; the davit and fall mechanisms are assumed reliable without inspection