In a purifier， the interface between the liquid seal and the oil should be positioned as close as possible to （）.
C
举一反三
- In a disk-type lubricating oil purifier, ____. A: The purifier driving gears are lubricated by the reclaimed B: Oil as it leaves the bowl all dirt and sludge are automatically discharged with the cooling water C: Sealing water must never be supplied until after oil is fed to unit D: Deterioration of the bowl ring gasket will cause the purifier to lose its water seal
- In the oil purifier, the interface move outside the top disc, the oil will escape through_____. A: the sludge passage B: the sludge outlet C: the observe glass passage D: the water outlet
- The position of the interface between oil and water within the centrifuge is achieved by the use of （）.
- 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
- Which statement about the Lubrication oil is fault? A: The oil absorbs and carries the heat away from the engine components. B: The oil forms a good seal between piston rings and cylinder walls. C: The oil forms a film on the metal surface and prevents a metal to metal contact. D: The oil washes off dirt away from the engine parts through its chemistry.
内容
- 0
In the Northern Hemisphere, if your vessel is in a hurricane’s navigable semicircle it should be positioned with the wind on the ______
- 1
The more liquid a market is, the bigger the trade-off is between speed and value.
- 2
The oil has many purposes: there are lubricating, ( ), cleaning ect. A: cooling B: seal C: heat D: warm
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Which kind of oil should never be used as aviation oil?
- 4
There is a close relation between reading speed and understanding.