Exam Question
Write briefly on materials used with its key properties for
(a) piping (4)
(b) valves (4)
(c) diesel engine parts such as liner, piston rings, inlet and exhaust valves. (8)
Class 4 (4th Engineer)
MEP
📅 Jul 2022
Reference Answer
### (a) Materials for Piping
#### 1. Copper-Nickel Alloy (90-10 Cu-Ni)
* **Key Properties**:
* **High Corrosion Resistance**: Exceptionally resistant to corrosion from seawater, which is highly saline and contains dissolved oxygen.
#### 1. Copper-Nickel Alloy (90-10 Cu-Ni)
* **Key Properties**:
* **High Corrosion Resistance**: Exceptionally resistant to corrosion from seawater, which is highly saline and contains dissolved oxygen.
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