Quality management 3 sem

The major load used in rock well C hardness test is

• 100kg

• 200kg

• 150kg

• 60kg

The major load used in rock well B hardness test is

• 100kg

• 200kg

• 150kg

• 60kg

The indentor used in rockwell B hardness test is

• Diamond pyramid

• Diamond cone

• Hardened steel ball

• l

  Diamond ball

The indentor used in rockwell C hardness test is

• Diamond pyramid

• Diamond cone

• Hardened steel ball

• Diamond ball

Resistance of the metal to plastic deformation usually by indentation is called

• Hardness

• Heating

• Cooling

• cutting

The major load & minor load is concerned with

• Rockwell Hardness Testing

• Vicker

• Brinell

• shore

Hardness checking by considering the rebound of a hammer is

• Shore scleroscope

• vicker method

• brinell method

Hardness of rubber can be checked by

• rock well

• vicker

• Shore scleroscope

• brinell

The indentor --------size used in rockwell B hardness tester

• 1/12”

• 2/8”

• 1/6”

• 5/8”

The angle of a indentern used in rockwell C hardness tester ia

• 120°

• 118°

• 135°

• 150°