Mathematics · Material Science
The Brinell hardness number (BHN) is given by which of the following expressions? [Where P = Applied load (in kg), D = Diameter of spherical ball (in mm), d = Diameter of impression (in mm)]
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12PπD[D - √(D2 - d2)]✓
- 22PπD[√(D2 - d2)]
- 32PD[D - √(D2 - d2)]
- 4PπD[D - √(D2 - d2)]
Correct answer
2PπD[D - √(D2 - d2)]
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