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UPSC 1996: 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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Not attemptedCorrect Answer: (d) Tungsten
Tungsten is added to iron to make high-speed/tool steels that retain ‘red hardness’—high hardness, abrasion resistance and strength even at elevated temperatures. Aluminium, chromium and nickel improve lightness, corrosion resistance and toughness respectively, but do not provide comparable high-temperature hardness. ([ameralloy.com](https://ameralloy.com/product/ameralloy-t/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 1996 Science & Technology question?▼
The correct answer is option (d): Tungsten. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Materials & Engineering question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1996, GS Paper 1, as Question 129. It falls under Science & Technology > Materials & Engineering.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Materials & Engineering?▼
UPSC has asked 23 questions from Materials & Engineering (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.