Question 29 of 30
The function of hydrostatic release unit is:
A
Substitute for limit switch of gravity davits
B
To automatically unhook the lashing and release the life raft when the ship sinks
C
For releasing life raft in bad weather
D
For releasing lifeboat from sinking vessel
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Answer & Explanation
The correct answer is Option B: To automatically unhook the lashing and release the life raft when the ship sinks.
The hydrostatic release unit (HRU) is designed to operate automatically at a depth of 1.5 to 4 meters. When a vessel sinks, the pressure forces a piston to cut a weak link, allowing the liferaft to float free and inflate, thus preventing it from being pulled down by the sinking vessel.