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1 question · 1996 · answers as per the UPSC key
UPSC 1996 · Q129 · Science & Technology › Materials & Engineering · Save
Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance?
(a) Aluminium
(b) Chromium
(c) Nickel
(d) Tungsten
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Answer: (d) Tungsten