ToolingU: Hardness Testing 221 Questions and Answers 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 of the following statements is true about microhardness testing? - ANSWER-Loads used in microhardness tests are usually less than 1 kilogram. Which hardness test uses a minor load of 3 kg and a major load of either 15, 30, or 45 kilograms? - ANSWER-Superficial Rockwell Which test uses a pyramid indenter with a square base and loads between 1 and 120 kilograms? - ANSWER-Vickers Which hardness test measures the rebound of a diamond-tipped hammer that is dropped from a fixed height? - ANSWER-Scleroscope What is the proper notation for a material with a Brinell hardness of 523? - ANSWER-HB523 Which hardness testing method determines a hardness value after delivering a minor and major static load? - ANSWER-Rockwell