PSCRB Exit Exam • Set 1 Question 27 of 30

What is the purpose of the limit switch on gravity davits?

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Direct Answer

Option A: To cut off the power when the davits are about 12 inches or more from the track safety stops

Limit switches serve as a safety cut-out for the electrical winch motor. They must be positioned to stop the davit arms before they reach the physical track safety stops, typically 12 inches (approx. 300mm) before the end of the track, to prevent structural damage.

All Options

To cut off the power when the davits are about 12 inches or more from the track safety stops (Correct Answer)

To stop the davits from going too fast

To cut off the power when the davits hit the track safety stops

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Proficiency in Survival Craft and Rescue Boats (PSCRB).

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