+1 vote
in Machine Kinematics by (38.0k points)
_____________ is the friction, experienced between the rubbing surfaces, when the surfaces have a thick layer of the lubricant.

(a) Fluid friction

(b) Solid friction

(c) Boundary friction

(d) None of the mentioned

The question was asked in an internship interview.

I'd like to ask this question from Friction Between Lubricated Surfaces in chapter Friction of Machine Kinematics

1 Answer

0 votes
by (106k points)
Right choice is (a) Fluid friction

The best I can explain: Fluid friction is the friction, experienced between the rubbing surfaces, when the surfaces have a thick layer of the lubricant. In this case, the actual surfaces do not come in contact and thus do not rub against each other.

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