Exam Question
(a) Describe various types of valves used in Engine room. State reasons for their use for particular type of valves. (8)
(b) Describe Materials used for different parts of each design (8)
Class 4 (4th Engineer)
MEP
📅 Nov 2023
Reference Answer
### Part (a): Valve Types, Applications, and Reasons for Use
This section describes the principal types of valves found in a ship's engine room, detailing their construction, primary function, and the rationale for their selection in specific systems.
**1. Gate Valve**
* **Principle:** Operates by lifting a wedge-shaped or parallel gate out of the path of the fluid. It is a multi-turn valve, meaning the handwheel must be turned several times to go from fully open to fully closed.
This section describes the principal types of valves found in a ship's engine room, detailing their construction, primary function, and the rationale for their selection in specific systems.
**1. Gate Valve**
* **Principle:** Operates by lifting a wedge-shaped or parallel gate out of the path of the fluid. It is a multi-turn valve, meaning the handwheel must be turned several times to go from fully open to fully closed.
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