Exam Question
(a) Name different types of crank shaft by construction methods (6)
(b) Show different parts of Fully Built Type Crankshaft and describe assembling process to complete the crankshaft. (6)
(c) What are materials used for each part. (4)
Class 4 (4th Engineer)
MEKM
📅 May 2023
Reference Answer
### (a) Different Types of Crankshaft by Construction Methods
Based on the method of construction, crankshafts for marine engines are classified into the following principal types:
1. **Fully Built Crankshaft:**
* **Construction:** This type is assembled from individual components: main journals, crank webs, and crankpins. Each part is manufactured separately, typically through forging or casting.
Based on the method of construction, crankshafts for marine engines are classified into the following principal types:
1. **Fully Built Crankshaft:**
* **Construction:** This type is assembled from individual components: main journals, crank webs, and crankpins. Each part is manufactured separately, typically through forging or casting.
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