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單項選擇題

Placing a filter on the （） of an oily water separator will "polish" the discharge but overloading must be avoided.

A.suction side
B.discharge side
C.by-pass pipe
D.sampling pipe

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單項選擇題

The resistance to the movement of the globule in oily water mixture depends on its size and the （） of the fluid.

A.pressure
B.velocity
C.gravity
D.viscosity

單項選擇題

The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.

A.the temperature
B.the viscosity
C.the gravity
D.the size

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