Why are lifejacket lights and whistles important, and what should be checked about them?

A. Lights and whistles should be removed before use to reduce weight and improve swimming ability

B. Only the whistle needs checking — lifejacket lights are purely optional accessories

C. A lifejacket light helps searchers spot a person in the water at night, and a whistle allows them to signal their position when shouting is less effective or too exhausting to sustain — both should be checked for presence, secure attachment, and (for the light) battery condition during routine inspections

D. Lights and whistles are decorative additions with no real function in a survival situation

A. There is no requirement to check personal survival equipment individually — the safety officer checks it on behalf of the whole crew

B. Only once the first boat drill is scheduled, which may be several days after joining

C. Only senior officers need to confirm the location of survival equipment; ratings are shown only during drills

D. Immediately, as part of the mandatory familiarisation process before the vessel sails — every seafarer must know exactly where their personal survival equipment is stowed and confirm it fits and is in good condition, not wait for the first scheduled drill

A. Lifejackets should be worn under outer clothing to keep them protected from sea spray

B. Put on warm clothing first if time allows, then the lifejacket over the top (never under clothing), secure all straps including the crotch strap if fitted, and check the light and whistle are attached and functioning

C. Put the lifejacket on first, then add warm clothing over it for extra insulation

D. Only secure the chest strap — leg/crotch straps are optional and rarely needed in practice