单项选择题
If the valve tappets in a diesel engine are set at greater clearances than those specified by the engine manufacturer, those valves will （）
A.open late and close early
B.open late and close late
C.fail to open when the engine is cold
D.fail to open at normal operating temperature
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相关考题
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单项选择题
Lubricating systems for diesel engines are usually designed to initially provide lube oil to the engine （）
A.camshaft beatings
B.main bearings
C.piston crowns
D.cylinder walls -
单项选择题
The expansion tank in a diesel engine closed freshwater cooling system is located at （）
A.the highest point in the system
B.the lowest point in the system
C.near the floor
D.plate level or near the tank top level -
单项选择题
On most modern diesel engines, the main and connecting rod bearings receive their lubricating oil by （）.
A.banjo feed
B.splash feed
C.gravity feed
D.pressure feed
