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Q6. A significant number of machinery failures are due to poor maintenance techniques. State, with reasons, the possible consequences of poor maintenance techniques on EACH of the following:

(a) main engine lubricating oil self-cleaning filters. (4)

(b) cylinder liner honing. (4)

(c) auxiliary engine bottom end bearing overhaul. (4)

(d) fitting of piston compression and oil control rings. (4)