Questions and Answers
What method is used to determine hardness in hardness testing?
Resistance to penetration
Which tester uses a hardened spherical ball for testing?
Brinell tester
What is the diameter of the ball used in the Brinell hardness tester?
10 millimeters
Which material uses a pressure of 3000 kilograms for the Brinell test?
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What is used to measure the diameter of the impression after a Brinell test?
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What does the Rockwell tester directly measure on its dial?
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What do Rockwell hardness numbers indicate about a material?
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'What does a greater difference between major and minor loads in Rockwell testing indicate?
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