Class 4 (4th Engineer) MEKG 📅 Apr 2025

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) Types of Coupling Bolts
Based on design and application for transmitting torque and maintaining alignment in shaft couplings, three primary types of bolts are used:
1. **Fitted Bolts (Parallel Shank Bolts)**:
* These bolts have a precisely machined parallel shank that fits into an equally precisely reamed hole in the coupling flanges.

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