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單項選擇題

Generally speaking，the fuel injected into a marine diesel engine combustion chamber is ignited by（）.

A.spark plugs
B.glow plugs
C.heat of compression
D.a magneto

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單項選擇題

For most ship engines，the fuel is（）.

A.natural gas
B.diesel oil
C.propane
D.bunker fuel

單項選擇題

Diesel engines obtain combustion air through turbo chargers，blowers，or（）.

A.air starters
B.carburetors
C.natural aspiration
D.air receivers