Hardness Tests on Metals MCQ

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

• What is the load that the Vickers hardness test can carry?
  ক

  10 kg

  খ

  120 kg

  গ

  150 kg

  ঘ

  3000 kg
• Which of the following scales are used for testing of very soft thermoplastics?
  ক

  A

  খ

  E

  গ

  H

  ঘ

  R
• Which materials are to be tested using an F-scale?
  ক

  Copper and brass

  খ

  Case hardened steels

  গ

  Bronze, gunmetal, and beryllium copper

  ঘ

  Thermoplastics
• Which of the following is not a Rockwell hardness scale?
  ক

  A

  খ

  E

  গ

  N

  ঘ

  K
• The indenter used in C-scale of Rockwell hardness test is named _________
  ক

  CABAL

  খ

  BRALE

  গ

  BRALL

  ঘ

  IDOL
• How is the Vicker’s hardness number defined as?
  ক

  1.8544PD2

  খ

  1.8544P 1/D2

  গ

  8.544P 1/D2

  ঘ

  8.544PD2
• What is the angle of indenter in Vicker’s hardness test?
  ক

  96 degrees

  খ

  110 degrees

  গ

  136 degrees

  ঘ

  150 degrees
• For how long is the load maintained in a Brinell test?
  ক

  2-4 seconds

  খ

  10-15 seconds

  গ

  20-30 seconds

  ঘ

  45-55 seconds
• What kind of indenter is used in a Brinell test?
  ক

  Diamond cone

  খ

  Steel ball

  গ

  Pen dot

  ঘ

  Long tube