Brinell Hardness test_Material Testing Lab

Which of these are true?

• Hardness is tested using a standard machine to make an hole in the surface of the material

• Hardness is tested using a standard machine to make an indentation in the surface of the material

• The width of the hole determines the hardness of the material

• The size of the indentation determines the hardness of the material

What kind of indenter is used in a Brinell test?

• Diamond cone

• Steel ball

• Elongated Pyramid

• Pyramid

Hardness test is the ability of a material

to resist

• Scratching

• Wear and tear

• Indentation.

• Fracture

The following tests are hardness test

• Tensile test.

• Vickers Test

• Rockwell Test

• Creep Test.

Which of following tests uses spherical indenter.

• .Brinell test.

• Vickers Test

• Rockwell Test

• Creep Test.

Brinell hardness number is not a function of ____________

• Ball diameter

• Impression diameter

• Surface roughness

• Load

For Brinell hardness test _________ is kept constant.

• P/D2

• P

• P/D

• P*D

The load is applied for a standard time in Brinell test.

• True

• False