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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Types of Wear and Pin on Disc

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Beginner

Intermediate

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1. Wear is best suited to define as

a: Loss of material due to oxide formation at high temperature Explanation

Explanation

b: Loss of material due to corrosive products on surfaces Explanation

Explanation

c: Loss of material due to relative motion between surfaces of a contacting substance or substances Explanation

Explanation

d: Loss of material due to radiation exposure Explanation

Explanation

2. Wear is generally occurring on

a: Materials’ surfaces in contact with each other Explanation

Explanation

b: In materials’ bulk Explanation

Explanation

c: Both materials’ surfaces and bulk Explanation

Explanation

d: Neither materials’ surfaces nor bulk Explanation

Explanation

3. Which of the following can affect the wear of materials?

a: Surface topography and chemistry Explanation

Explanation

b: Stresses acting on the surface Explanation

Explanation

c: Types of materials in contact Explanation

Explanation

d: Lubrication of surfaces Explanation

Explanation

e: All the options are correct Explanation

Explanation

4. We can completely stop wear of materials by

a: We can completely stop wear of materials by use of suitable lubricants Explanation

Explanation

b: We can completely stop wear of materials by making the surface smooth Explanation

Explanation

c: There will always be wear of materials, we can only minimize its extent Explanation

Explanation

d: By using the same material for both the moving components/parts Explanation

Explanation

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