Q6. A. Sketch a line diagram showing the layout components of a hydraulic system with a variable delivery, Pressure compensated pump and accumulator, suitable for the operation of deck machinery.
B. Describe the operation of the system sketched in part 6 (a).
Q4. (a) Describe with aid of a line diagram the layout and components of a hydraulic system suitable for the operation of deck machinery; (8)
(b) Explain how the hydraulic system pressure is controlled assuming the use of a variable Delivery pump. (4)
c) State which design of hydraulic motor is used in the system described in (b) (4)
Q7. With reference to hydraulic deck machinery:
a) State the sources for contamination of the system. (6)
b) Describe possible effects due to contamination. (6)
c) Explain how the oil can be monitored by ships staff. (4)
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