Question

The alloy used in the construction of aircrafts is:
A. Mg-Sn
B. Mg-Mn
C. Mg-Al
D. Mg-Zn

Answer 1

. An alloy is a combination of two or more metals or metals combined with one or more other elements. The resulting mixture forms a substance with properties that often differ from those of the pure metals such as increased strength or hardness. For example combining the metallic elements gold and copper produces red gold, gold and silver becomes white gold, and silver combined with copper produces sterling silver.

Complete step by step answer:
An alloy may be a solid solution of metal elements in which all metallic crystals are of the same composition or a mixture of metallic phases. Alloys are defined by a metallic bonding character. The alloy constituents are usually measured by mass percentage for practical applications. Depending on the atomic arrangement alloys can be classified as substitutional or interstitial alloys. Which can further also be classified as homogeneous those which consist of a single phase only or heterogeneous which consists of two or more phases. The alloy used in aircraft engines is generally aluminum alloy. Because aluminum alloys have a high strength to weight ratio. These alloys are corrosion resistant and comparatively easy to fabricate. So because so it’s high tensile strength and also economical price it is used in preparing aircraft.
So, the correct answer is “Option C”.

Note: Alloys are used in many applications like the steel alloys used in everything like in buildings, automobiles, surgical tools, titanium-alloys used in the aerospace industry. In some cases a combination of metals reduces the overall cost of the material by maintaining its important properties. Also the combination of metals imparts synergistic properties to the constituent metal elements such as corrosion resistance or mechanical strength.