Class 4 (4th Engineer) MEKG 📅 Jun 2024

Exam Question

(a) What are the different types of coupling bolts used in practice? Name at least 3. (3)

(b) Explain with the help of sketch, as to how a 'pilgrim' hydraulic bolt is fitted and removed? (8)

Reference Answer

### (a) Different Types of Coupling Bolts
The three primary types of bolts used for shafting flange couplings in marine practice are:
1. **Fitted Bolts (Parallel Shank Bolts):**
* These bolts have a straight, parallel shank that is precision-machined to be an interference fit in the corresponding reamed holes of the coupling flanges.

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