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Class 4 (4th Engineer) MEP 📅 Nov 2024

Exam Question

With reference to lifeboats and davits describe (a & b) with the aid of sketches

(a) "The purpose and types of "limits switches": (6)

(b) The centrifugal brake and state the method of testing. (5)

(c) Enumerate routine maintenance of the lifeboat engine and the life boat winch (5)

Exam question diagram

Reference Answer

### (a) Lifeboat Davit Limit Switches: Purpose and Types
**(6 Marks)**
**1. Purpose:**
The primary purpose of a limit switch on a lifeboat davit is to act as a crucial safety device that automatically cuts electrical power to the winch hoisting motor, thereby preventing mechanical damage. Its function is to stop the movement of the davit arms at a predetermined position.

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