Meyer Hardness MCQ

Test your knowledge with important Meyer Hardness MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Meyer Hardness MCQs at Bissoy

• The HRB scale of Rockwell hardness measurement range from _________
  ক

  0-100

  খ

  0-50

  গ

  20-70

  ঘ

  50-150
• If the material is showing a hardness value of HRc 57, which of the following combination of load and indenter is used for the measurement?
  ক

  Load-100 kg, indenter-diamond cone

  খ

  Load-150 kg, indenter-diamond cone

  গ

  Load-100 kg, indenter-1.6 mm diameter ball

  ঘ

  Load-150 kg, indenter-1.6 mm diameter steel ball
• The Brale indenter is used for which hardness measurement method?
  ক

  Vicker’s

  খ

  Rockwell

  গ

  Knoop

  ঘ

  Microhardness
• The Rockwell hardness scale is divided into 100 equal division, with each division representing a depth of __________
  ক

  0.002 mm

  খ

  0.001 mm

  গ

  0.01 mm

  ঘ

  1 mm
• The Rockwell hardness number unit is equal to __________
  ক

  kg/mm2

  খ

  kg/mm

  গ

  kg-mm2

  ঘ

  unit less
• The minor load in the Rockwell hardness measurement is generally equal to ___________
  ক

  50 kg

  খ

  150 kg

  গ

  10 kg

  ঘ

  20 kg
• The most widely used hardness method is ______________
  ক

  Rockwell

  খ

  Knoop

  গ

  Vicker’s

  ঘ

  Brinell
• In the case of Vicker’s hardness measurement, the softer material will have a higher hardness number, and harder material will have lower VHN.
  ক

  True

  খ

  False
• The Vicker’s hardness number is given as _____________
  ক

  P/L

  খ

  P/L2

  গ

  1.854*P/L2

  ঘ

  1.854*P/L
• The indenter used in the Vicker’s hardness tester is _______________
  ক

  steel ball with 1.6 mm diameter

  খ

  steel ball with 10mm diameter

  গ

  square-base diamond pyramid

  ঘ

  square-base flat-pyramid