TOOLINGU: HARDNESS TESTING 221
100% ACCURATE
Which of the following is the proper notation for a material with Rockwell B-scale
hardness of 99? - ANSWER HRB99
Which of the following statements about Shore hardness testing is true? Shore
hardness testing uses: - ANSWER A durometer with an indenter and dial indicator to
measure a material's hardness.
What is the correct notation for a Knoop hardness of 600 under a 0.75 kg testing force?
- ANSWER 600HK0.75
Which of the following terms describes a material's ability to resist penetration? -
ANSWER Hardness
Which of the following statements about ultrasonic microhardness testing is true?
Ultrasonic microhardness testing measures: - ANSWER The change in frequency of a
vibrating Vickers indenter.
Which of the following sentences is true about Brinell hardness testing? - ANSWER
Standard loads for Brinell tests include 500, 1500, and 3000 kilograms.
Which hardness testing method determines a hardness value after delivering a minor
and major static load? - ANSWER Rockwell
Which of the following sentences about hardness testing methods is true? - ANSWER
Rebound methods measure how high or fast a hammer rebounds after being dropped
on the test material.
Which portable hardness testing method measures the rebound of a ball hammer that is
bounced off of the material with a spring mechanism? - ANSWER Leeb
Which of the following statements about hardness data conversion is true? - ANSWER
Reference charts offer approximate comparisons of different hardness scales.
Which of the following sentences about the Rockwell hardness test is true? - ANSWER
The first static load usually causes elastic deformation, while the second causes plastic
deformation.
Which of the following statements about hardness testing accuracy is true? - ANSWER
Devices must be cleaned and calibrated before testing begins.
Which of the following statements is true about microhardness testing? - ANSWER
Loads used in microhardness tests are usually less than 1 kilogram.
100% ACCURATE
Which of the following is the proper notation for a material with Rockwell B-scale
hardness of 99? - ANSWER HRB99
Which of the following statements about Shore hardness testing is true? Shore
hardness testing uses: - ANSWER A durometer with an indenter and dial indicator to
measure a material's hardness.
What is the correct notation for a Knoop hardness of 600 under a 0.75 kg testing force?
- ANSWER 600HK0.75
Which of the following terms describes a material's ability to resist penetration? -
ANSWER Hardness
Which of the following statements about ultrasonic microhardness testing is true?
Ultrasonic microhardness testing measures: - ANSWER The change in frequency of a
vibrating Vickers indenter.
Which of the following sentences is true about Brinell hardness testing? - ANSWER
Standard loads for Brinell tests include 500, 1500, and 3000 kilograms.
Which hardness testing method determines a hardness value after delivering a minor
and major static load? - ANSWER Rockwell
Which of the following sentences about hardness testing methods is true? - ANSWER
Rebound methods measure how high or fast a hammer rebounds after being dropped
on the test material.
Which portable hardness testing method measures the rebound of a ball hammer that is
bounced off of the material with a spring mechanism? - ANSWER Leeb
Which of the following statements about hardness data conversion is true? - ANSWER
Reference charts offer approximate comparisons of different hardness scales.
Which of the following sentences about the Rockwell hardness test is true? - ANSWER
The first static load usually causes elastic deformation, while the second causes plastic
deformation.
Which of the following statements about hardness testing accuracy is true? - ANSWER
Devices must be cleaned and calibrated before testing begins.
Which of the following statements is true about microhardness testing? - ANSWER
Loads used in microhardness tests are usually less than 1 kilogram.
