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单选题
The lube oil in the bearings is drawn from a （）, usually located in the bedplate.
A
tank
B
sump
C
vessel
D
bottle
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outlet from the lube oil header
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Fuel oil discharging from the water outlet of the lube oil purifierC
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a sumpC
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sludgeC
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oil foaming will occurB
large quantities of oil are consumedC
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corrosive by-products are usually formed
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