题目
When separating the lube oil without additive, it is usually cleaned with hot water; the aim is to remove ____ from it.A.acidB.sludgeC.mechanical impurityD.salinity
When separating the lube oil without additive, it is usually cleaned with hot water; the aim is to remove ____ from it.A.acid
B.sludge
C.mechanical impurity
D.salinity
B.sludge
C.mechanical impurity
D.salinity
题目解答
答案
A
解析
在分离无添加剂的润滑油时，通常使用热水清洗，目的是去除酸性物质。这是因为热水可以有效地中和润滑油中的酸性成分，从而提高润滑油的质量和性能。