Q2. With reference to LNG diesel engine installations:
(a)Describe, with the aid of a sketch, a Gas Valve Unit, explaining its purpose and indicating where it is located in the gas train.
(b) Explain why ventilation and inert gas systems must be installed with the engine fuel gas system.
(c) State why pilot injection must be provided when burning fuel gas, explaining how a pilot injection system works
Q9. a) Briefly discuss the advantages, disadvantages and working of pulse type cylinder lubrication system. (8)
b) Explain the process of calculating specific cylinder oil consumption of main engine. (8)
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