Question 1194 Deck Safety

The correct answer is B) releasing the tie-down strap. As a vessel sinks to a depth of 15 feet, the hydrostatic pressure causes the hydrostatic release unit (HRU) to activate and release the tie-down strap that secures the liferaft container to its cradle. This allows the liferaft container to float free from the sinking vessel. The other options are incorrect because: A) the CO2 canister is used to inflate the liferaft, not to release it from the cradle; C) the weak link is designed to break at a specific depth to allow the liferaft to surface; and D) the operating cord is used to manually deploy the liferaft, not for the automatic hydrostatic release.