Q4. 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. (6)
(b) Explain why ventilation and inert gas systems must be installed with the engine fuel gas system. (5)
(c) State why pilot injection must be provided when burning fuel gas, explaining how a pilot injection system works (5)
Q4. With respect to carriage of LNG as bunker on board ship & subsequent consumption of the fuel in the diesel engine, discuss: (16)
a) Types of bunker tank arrangement
b) Liquefied gaseous fuel containment safeties
c) Bunkering Requirements
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