Q3. Sketch and describe a ‘Four ram electro hydraulic steering system’, showing pump isolating valves, relief valves and bypass valves. (10)
ii) Indicate & explain valve position for one pump isolation and one unit isolation. (6)
Q8. (a) Sketch a steering gear arrangement capable of I00 percent redundancy. (8)
(b) Describe the operation of the arrangement in (a) when the working pump oil manifold develops a serious leak. (8)
Q6. i) what are the types of pumps normally used for steering gear system? (3)
ii) Using a simple sketch explain the working principle of 'radial piston' type pumps. (8)
iii) What is understood by the term 'hunting action'? (5)
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