📢 Q. MOB smoke float working duration.

The correct answer is C, '15 minutes.' The working duration of a Man Overboard (MOB) smoke float is typically 15 minutes. The smoke float is an essential safety device used to mark the position of a person who has fallen overboard. It emits bright, visible smoke, which allows rescuers to easily spot the location of the person in the water, even in challenging weather or visibility conditions.

The 15-minute duration provides a longer window for rescuers to reach the person in the water before the smoke dissipates. This additional time can be critical for a successful rescue operation.