engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Fitter Tools Cutting Tools

High speed steel is an alloy of

1

18% tungsten, 12% chromium and 4% Vanadium

2

30% chromium, 20% tungsten and 4% carbon

3

18% tungsten, 6% chromium and 4% Vanadium

4

18% tungsten, 4% chromium and 2% Vanadium

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