Class 4 (4th Engineer) MEKG 📅 Sep 2024

Exam Question

(a) Sketch a two ram-type hydraulic steering gear with a single Electro-hydraulic pumping unit. Show the hunting gear arrangement and indiate valve positions (8)

(b) State the purpose of and describe the operation of:

(i) Hydraulic shock/ buffer valves (3)

(ii) Oi replenishing tank (2)

(iii) Hunting gear (3)

Reference Answer

### Part (a): Sketch of a Two-Ram Hydraulic Steering Gear
A detailed sketch is required to illustrate the layout and operation of a two-ram electro-hydraulic steering gear. The sketch must clearly label the following components:
1. **Tiller Arm:** Fixed to the rudder stock.
2. **Rams (2):** Connected to the tiller arm, housed in hydraulic cylinders.

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