单项选择题
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
A condition contributing to diesel engine piston rings ...
单项选择题A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring（）
A.gap B.side C.back D.radial
An auxiliary diesel engine may fail to start due to（）A....
单项选择题An auxiliary diesel engine may fail to start due to（）
A.low exhaust back pressure B.high lube oil temperature C.insufficient cranking speed D.excessive fuel atomization
