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Class 4 (4th Engineer) MEKG 📅 Oct 2023

Exam Question

(a) Sketch in simple form a constant speed hele-shaw pump suitable for a hydraulic steering gear. (6)

(b) Describe the pump and its principle of operation. (5)

(c) What characteristics of the pump make it suitable for use in steering gear system? (5)

Exam question diagram

Reference Answer

### (a) Sketch of a Hele-Shaw Pump
A simple cross-sectional sketch of a constant speed Hele-Shaw pump should clearly illustrate the following key components:
1. **Outer Casing:** The main body of the pump.
2. **Drive Shaft:** Connected to a constant speed electric motor, this shaft enters the casing and rotates the cylinder block.

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