Aragón PAU Technology And Engineering II Practice Questions - Aragón PAU Technology And Engineering II (Tecnología E Ingeniería II 2o Bachillerato) Exam

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In a Brinell hardness test on a metallic alloy, a hardened steel ball of diameter D = 10 mm is applied under a load F = 3000 kgf. The measured indentation diameter is d = 4.0 mm. Calculate the Brinell Hardness Number (HB). [Formula: HB = 2F / (π D (D - √(D² - d²)))]

150 HB 229 HB 310 HB 450 HB

Correct Answer:

229 HB

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