(a) Explain the possible causes and actions to be taken in the event of a high exhaust temperature on a four stroke generator engine at (i) A single cylinder (3) (ii) more than one cylinder (3) (b) explain why multiple air inlet and exhaust valves are fitted to highly rated 4-stroke engines (4) (c) Describe an arrangement for operating multiple valves from a single cam, explaining how the “tappet ” clearance is set for both valves. (6)
Engine protection,Cylinder head
UKM Tuticorin 
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