Q8. a) Draw Lubricating oil piping diagram with all fittings for a trunk type 4- stroke Diesel Engine. (8)
b) What properties are required for a Lubricating oil used in a 4-stroke Diesel Engine? (4)
c) What is the effect on lubricating oil due to various contaminants during operation of engine? (4)
Q3) (a) With a diagram of the lubricating oil line, explain the working of an automatic backflushing filter placed on the lubricating oil line of the main engine. (10)
(b) List the main difference between such filter and a centrifugal separator. (6)
Q4. (a) Describe means of recognizing deterioration of the lubricating oil (8)
(b) Describe how lubrication oil is conveyed to top end, bottom end and main bearings in large bore, 2-stroke cross head type slow speed diesel engine, you are familiar with (8)
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