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Which property helps a material to absorb lubricants?

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in Engineering Material & Metallurgy by (773k points)
Which property helps a material to absorb lubricants?

(a) Density

(b) Porosity

(c) Soldering

(d) Absorptivity

The question was asked in my homework.

I want to ask this question from Miscellaneous Properties topic in chapter Properties of Engineering Materials of Engineering Material & Metallurgy

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Correct option is (b) Porosity

To explain I would say: Porosity is that property of a material which helps it to absorb lubricants, while density is the measure of the weight of unit volume. The solderability is the ease with which a soldered joint can be prepared. Absorptivity is an optical property of materials.

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