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What is the load that the Vickers hardness test can carry?

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What is the load that the Vickers hardness test can carry?

(a) 10 kg

(b) 120 kg

(c) 150 kg

(d) 3000 kg

I got this question in homework.

The query is from Hardness Tests on Metals in chapter Wear of Metals, Mechanical Properties and Testing of Engineering Material & Metallurgy

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The correct choice is (b) 120 kg

The explanation is: Brinell’s hardness tests can be used up to 3000 kg for a steel ball. Both B-scale and C-scale of Rockwell have a minor load capacity of 10 kg and a major load capacity of 100 kg and 150 kg respectively. The Vickers test has a load of 1-120 kg and can be used in all metal alloys and ceramics.

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