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單項選擇題

Grease the roller bearings with HPgun In the sentence “HP” means （）.

A.horse power
B.high pressure compressor
C.hand pump
D.high pressure

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單項選擇題

The remaining oil/water mixture now flows down into the fine separating compartment and moves slowly between the（） in the Turbulo separator.

A.catch plates
B.swash plates
C.cover plates
D.bedplates

單項選擇題

The oil （） in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.

A.filter
B.hole
C.pollution
D.content