单项选择题
The most practical way of detecting an overload in one cylinder of an operating large, low-speed ,main propulsion diesel engine is to （）
A.check the cylinder exhausts for black smoke B.listen for combustion knock in that cylinder C.isolate each cylinder and inspect the injector D.check the cylinder exhaust temperature frequently
单项选择题 Diesel engine mufflers or silencers reduce the engine exhaust noise by （）
单项选择题 If a diesel engine were running at 20% overload with a smoky exhaust, you should（）
单项选择题 A substantial increase pressure could be an indication of a/an （）
