单项选择题
A.To provide accessibility to the cylinder liners
B.To add stability to the engine block
C.To add rigidity to the block and a surface for attaching other parts
D.To make a surface for the base
单项选择题 A turbocharged, four-stroke/cycle diesel engine has a larger valve overlap than a naturally aspirated four-stroke/cycle diesel engine, in order to in crease the （）.
单项选择题 A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an （）
单项选择题 While maneuvering, you discover heavy smoke coming from the turbocharger casing, you should （）