Exam Question
(a) Describe the principle of a coil-operated brake suitable for winches and other deck machinery (8)
(b) Explain with suitable sketches how the windlass is relieved of strain when riding at anchor. (8)
Class 2 (2nd Engineer)
MEKG
📅 Sep 2023
Reference Answer
### (a) Principle of a Coil-Operated Brake for Winches
A coil-operated brake, commonly referred to as an electromagnetic brake, is a critical safety device fitted to electric winches, cranes, and windlasses. Its primary principle is to be **fail-safe**, meaning the brake is applied by default (spring force) and requires electrical power to release it.
#### Principle of Operation
The operation is based on the interaction between a powerful spring mechanism and an electromagnet.
A coil-operated brake, commonly referred to as an electromagnetic brake, is a critical safety device fitted to electric winches, cranes, and windlasses. Its primary principle is to be **fail-safe**, meaning the brake is applied by default (spring force) and requires electrical power to release it.
#### Principle of Operation
The operation is based on the interaction between a powerful spring mechanism and an electromagnet.
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.
Prepare on Android — MeoMock on Google Play