单项选择题
A.turbocharger efficiency B.engine power output C.carbon deposits on fuel injectors D.cylinder scavenging
An increased differential between the inlet and outlet ...
单项选择题An increased differential between the inlet and outlet of a strainer usually indicates the strainer is （）
A.holed B.fouled C.clean D.dry
Trunk type diesel engine pistons are effectively cooled...
单项选择题Trunk type diesel engine pistons are effectively cooled when heat is（）
A.radiated through the engine block B.transferred to water cooled cylinder walls C.conducted through the piston crown D.transferred to escaping exhaust gases
Maintaining the proper fuel oil temperature will result...
单项选择题Maintaining the proper fuel oil temperature will result in （）
A.the elimination of valve wear B.improved atomization C.a decrease in cylinder blow-by D.an increase in cylinder blow-by
