Hardness Testing Quiz

In the Vickers hardness test, what type of indentor is used?

• Cylindrical indentor

• Square based pyramidal diamond

• Hardened steel ball

• Tungsten carbide ball

What is the major difference between the Brinell and Vickers hardness tests?

• The time duration of the test

• The shape of the indentor

• The load applied

• The material being tested

What is crucial to achieve accurate and reproducible hardness test results?

• Regular maintenance and calibration of the machine

• Low hardness values

• Deformation of the indentor

• Friction in the loading system

What is the purpose of the hardness test?

• To measure the resistance of a material to indentation

• To determine the tensile strength of a material

• To assess the ductility of a material

• To calculate the thermal conductivity of a material

Why is it important to consider the size of the indentation in hardness testing?

• It affects the accuracy of the hardness measurement

• It determines the color change in the material

• It indicates the electrical conductivity of the material

• It influences the magnetic properties of the material