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Which of the following is not a characteristic of tungsten?

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Which of the following is not a characteristic of tungsten?

(a) Good strength

(b) Good electrical conductivity

(c) Heavy

(d) Good insulation

The question was posed to me during an interview.

This interesting question is from Refractory Materials, Superalloys topic in division Refractories & Dielectric Materials of Engineering Material & Metallurgy

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Best answer
Right choice is (d) Good insulation

The best explanation: Tungsten is a refractory metal having the same density as gold, is heavy, and has the highest melting point among metals. It possesses a good strength under high temperature and also good electrical conductivity. It is generally used in lamps, electron tubes, and other electrical parts.

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