Bulk and Micro Hardness Test of Materials

1. The Vickers hardness in HV if the load applied is 100 grams and indentation size (diagonal length) is 43 microns (choose one of the closest one)?
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2. Rockwell hardness is measured by measuring the:
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3. If the load applied is 3000 kgf, ball diameter is 10 mm, and indent impression diameter is 3 mm, the Brinell hardness (in BHN) is
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4. The Brinell hardness testing uses
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Which of the following test provide measurements of surface property?
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