Q7. With reference to deck machinery:
(a) sketch a line diagram showing the layout and components of a hydraulic system with a variable delivery, pressure compensated pump and accumulator, suitable for the operation of deck machinery(5)
(b) discuss the advantages of using electrically driven machinery over hydraulically driven winches and windlasses. (5)
Q7. With reference to hydraulic deck machinery and cargo handling systems:
(a) State possible types of contaminations of the oil, describing how the contaminations may have occurred (4)
(b) State FOUR possible effects of oil contamination on the system; (4)
(c) State how the system oil may be monitored for contamination.(2)
Q7. (a) In deck machinery hydraulic systems, state the functions of the hydraulic oil reservoir, making reference to the volume of the hydraulic fluid in the system. (6)
(b) State FOUR reasons for machinery tripping out on high oil temperature during operation. (4)
(a) In deck machinery hydraulic systems, state the functions of the hydraulic oil reservoir, making reference to the volume of the hydraulic fluid in the system.
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