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For high strength applications ____ is widely used.

(a) 7075 aluminum alloy

(b) 7089 magnesium zinc

(c) 1098 gallium

(d) Ge-Zn alloy

The question was posed to me by my college professor while I was bunking the class.

I'd like to ask this question from Structures topic in section Structures and Loads of Aircraft Design

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The correct answer is (a) 7075 aluminum alloy

Explanation: For high strength application 7075 aluminum alloy is widely used. 7075 is alloyed with zinc, copper and magnesium. Corrosion resistance is lessened by alloying. Aluminum sheet is frequently clad with a thin layer of pure aluminum.

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