The quality of the fuel oil and lube oil （）， Im afraid.
举一反三
- Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（） A: Water discharging from the water outlet of the lube oil purifier B: Fuel oil discharging from the water outlet of the lube oil purifier C: Lube oil discharging from the water outlet of the lube oil purifier D: A change in the lube oil viscosity
- The quality of the fuel oil and lube oil （）， Im afraid. A: has much to do with the operation of the engine and its life B: have much to do with the operation of the engine and its life C: has much doing with the operation of the engine and its life D: have much doing with the operation of the engine and its life
- A decrease in the flash point of diesel engine lube oil indicates the lube oil has become （）.
- When fuel enters the crankcase of a diesel engine, it （） A: dilutes the lube oil and reduces its viscosity B: forms sulfuric acid in the lube oil C: causes pitting and failure of the bearings D: causes sludge deposits on valve stem
- Which of the following operation will have a direct impact on the rate of wear in a cylinder liner （） A: amount of scavenge air to the cylinder B: quality of fuel injected C: viscosity of the lube oil D: compression ratio of the pisto