A large change in ambient temperature， or using an oil of a viscosity different from the one recommended by the manufacturer in a mechanical hydraulic governor， will result in the need to adjust the （）.
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
- In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ( ) and Fred changes the ( ). A: tires; oil B: oil; oil C: oil; tires D: tires; tires
- ______can cause oil flow from water outlet of the oil purifier. A: Oil inlet valve opening too quickly B: Oil temperature little higher than normal C: Diameter of gravity disc too small D: Viscosity of oil little lower than normal
- The lubricating system for the cylinder walls is different from the bearings in that the oil for former one is supplied in （） while that for latter one is （）.
- What is the result of the major oil explorers' change in exploration?