单项选择题
A.overloading the engine B.low exhaust valve lift C.excessive cylinder cooling D.insufficient mechanical clearance
In a two-stroke/cycle diesel engine, the exhaust gases ...
单项选择题In a two-stroke/cycle diesel engine, the exhaust gases are expelled from the cylinder by the（）
A.exhaust manifold B.valve bridge C.pressure of the fresh air charge D.valve adjusting gear
If a diesel engine driving a generator turns over freel...
单项选择题If a diesel engine driving a generator turns over freely but fails to fire properly, the cause could be （）
A.excessive compression pressure B.air in the fuel lines C.high fuel pressure D.excessive load
One of the purposes for water cooling the exhaust manif...
单项选择题One of the purposes for water cooling the exhaust manifold in marine diesel engine is to （）
A.reduce lube oil temperature B.raise exhaust temperature reduce C.excessive heating of engine room D.reduce load on cooling water pump
