Q2. A. Describe with the aid of a sketch, the main engine ancillary equipment for automatic monitoring and regulation of fuel viscosity. B. Explain the operation of equipment described in Q. (A). C. Discuss the single fuel concept.
Q1. (A) Explain how wear on bearing surfaces is effected by each of the following factors:
(i) Dissimilarity of materials in the contact surfaces
(ii) Relative speed of sliding between the surfaces
(iii) Roughness of the surfaces
(iv) incompatibility of lubricant and bearing material.
(b) Describe how each effect may be identified during inspection, Suggest corrective action at either operational or maintenance stages.
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