单项选择题
How does combustion air enter the cylinder of a two-cycle diesel engine?（）
A.Cylinder head valves
B.Ports
C.Turbo chargers
D.Bleeder valves
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相关考题
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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 -
单项选择题
For most ship engines，the fuel is（）.
A.natural gas
B.diesel oil
C.propane
D.bunker fuel -
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
