单项选择题

Which of the following is wrong about operation of oily water separator?（）

A.filled with clean water before operation
B.keep air cushion in oil collecting space during running
C.check oil level during running
D.clean inner separator with low pressure stream

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单项选择题

When oily water separator is operating, which measure （） is wrong.

A.pay attention to operating parameters
B.renew and clean separating units in time
C.check oil level in separator to prevent overload
D.check separating effect, if it is bad, flush with large capacity water pump

单项选择题

The following measures can be used to improve oily water separator’s separating effect except （）

A.overhauling every two year
B.working at intervals
C.renewing filtration material
D.pumping bilge water from different layers respectively

单项选择题

If separating effect is not good, which measure should be taken （）

A.working at intervals and properly heating
B.warming up to 70℃, increase water supply flow
C.improving impulse of water supply
D.reducing water supply flow