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单选题
Clean oil is achieved in a clarifier bowl where the impurities and water collect at the bowl （）.
A
bottom
B
top
C
center
D
periphery
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单选题The interface between the liquid seal (water) and the oil should be positioned （） possible to the bowl periphery.A
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单选题In a disk-type lubricating oil purifier, （）A
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单选题Dirty oil must be （） before being used again.A
mixed with clean oilB
purifiedC
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单选题The position of the interface between oil and water within the centrifuge is achieved by the use of （）.A
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单选题Clean oil is achieved in a clarifier bowl where the impurities and water collect at the bowl （）.A
bottomB
topC
centerD
periphery
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单选题A centrifuge arranged to separate impurities and small amounts of water from oil is known as （）.A
an oily water separatorB
a purifierC
a centrifugal compressorD
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单选题For a L√Opurifier, if the back pressure of the oil outlet is too high, the interface between oil and water in the bowl will （）.A
be interruptedB
move downwardsC
move outwardsD
retain original position
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单选题When a clarifier is running the impurities and water collect at the bowl （）.A
centerB
peripheryC
inletD
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单选题When two oil separators are working in series, they should work with （）A
both as clarifiersB
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operation within the explosive rang of the fuelC
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the outlet of oilB
the outlet of waterC
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the center of bowl
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