Q. Which of these is not a property of duralumin?

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Q. Which among the following is an example of a non heat-treatable alloy?

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Q. Artificial aging process takes place at a temperature range of ________

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Q. What happens when the maximum strength is achieved by the aging process?

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Q. Which of these is not a stage in precipitation hardening treatment?

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Q. How much copper is present in Y-alloys?

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Q. What is the melting point of zinc?

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Q. With the addition of which element, does zinc create resistance to creep?

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Q. The most common casting process for zinc alloys is _______

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Q. What is the appearance of zinc?

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Q. What is the temperature at which zinc become malleable?

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Q. How much copper is present in deoxidized copper?

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Q. High conductivity copper is used ______

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Q. Which copper grade is used to manufacture semiconductors and particle accelerator components?

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Q. What is the melting point of Copper?

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Q. Brass is an alloy of copper and ______

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Q. α brasses contain ______ of zinc.

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Q. What is the appearance of copper?

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Q. Addition of tellurium to copper results in ________

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Q. _______ is an alloy of copper and tin.

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