In a normally operating diesel engine， the main cause of lubricating oil contamination in the crankcase is a result of the （）.
举一反三
- Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?（）
- For diesel engine piston cooling， lubricating oil can be supplied to the pistons by a/an （）.
- The operating diesel generators will have their exhaust temperatures， cooling water and lubricating oil temperatures and pressures （） in much the same way as for the main engine.
- In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces ____. A: all of the oil used by the engine through a filter B: some of the oil used by the engine through a filter C: some of the oil used by the engine through a centrifuge D: all of the oil used by the engine through a centrifuge
- Dirt in the fuel oil system of a diesel engine can cause （）.