Exam Question
Describe materials used with composition and reasons for use with following components of Diesel Engine Plant:
(a) Gudgeon Pins and Connecting rod bolts (4)
(b) Gear Wheels (4)
(c) Upper Piston Parts (4)
(d) Fuel Nozzles (4)
Class 4 (4th Engineer)
MEP
📅 May 2023
Reference Answer
### (a) Gudgeon Pins and Connecting Rod Bolts
#### Gudgeon Pins (Wrist Pins)
* **Material & Composition**:
* Typically made from a case-hardening Nickel-Chromium alloy steel (e.g., 16MnCr5, 20MnCr5).
#### Gudgeon Pins (Wrist Pins)
* **Material & Composition**:
* Typically made from a case-hardening Nickel-Chromium alloy steel (e.g., 16MnCr5, 20MnCr5).
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