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Q6. With respect to a 2-stroke main propulsion diesel engine starting air system:

(a) Draw and explain a typical starting air timing diagram for a single cylinder. (8)

(b) What is "Starting Air Overlap" and why is it necessary in a multi-cylinder engine? (4)

(c) What is slow turning arrangement and what is the purpose? (4)

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Q5. With respect to a 2- stroke main propulsion diesel engine starting air system.

a) Explain the starting air overlap?

b) What is the starting air timing for one cylinder?

c) What is slow turning arrangement and what is the purpose?