单项选择题
A.Cylinder head valves B.Ports C.Turbo chargers D.Bleeder valves
Generally speaking，the fuel injected into a marine dies...
单项选择题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
For most ship engines，the fuel is（）.A.natural gasB.dies...
单项选择题For most ship engines，the fuel is（）.
A.natural gas B.diesel oil C.propane D.bunker fuel
Diesel engines obtain combustion air through turbo char...
单项选择题Diesel engines obtain combustion air through turbo chargers，blowers，or（）.
A.air starters B.carburetors C.natural aspiration D.air receivers
