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Class 2 (2nd Engineer) MEKG 📅 Apr 2024

Exam Question

With regards to main transmission shaft flange coupling arrangements:

(a) Sketch a hollow type coupling bolt and the hydraulic head/nut and loading rod which are used to fit it. (8)

(b) Describe how the bolt is fitted. (4)

(c) State the advantage of the hollow coupling bolt as compared to the traditional type of coupling bolt. (4)

Exam question diagram

Reference Answer

(a) ### Sketch of Hollow Coupling Bolt and Hydraulic Fitting Tools
The required diagram must illustrate the complete assembly for fitting a hollow coupling bolt, clearly labelling the following components:
* **Hollow Coupling Bolt**: A bolt with a central longitudinal bore and threads at the end.
* **Coupling Flanges**: Two main transmission shaft flanges shown ready to be coupled.

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