Question

to meet the requirement for the number of vdss on board, what must be true about pyrotechnic vdss? a must be non - combustible b must be visible in bright sunlight c must be unexpired d must be pistol - launched

Explanation:

Pyrotechnic Visual Distress Signals (VDSs) are emergency devices for boats. To meet onboard requirements, they must be within their usable expiration period, as expired ones may fail to function properly. Non-combustible is incorrect because they rely on combustion to work; visibility in bright sunlight is not a mandatory requirement for all pyrotechnic VDSs, and not all need to be pistol-launched.

Answer:

C. must be unexpired