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Q.

Which of the following alloys are correctly matched with their uses?
i) Li/Mg armour plates
ii) Cu/Be high strength springs
iii) Mg/Al aircraft construction

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a

i, ii, iii

b

i, ii only

c

i, iii only

d

ii, iii only

answer is D.

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Detailed Solution

  • Armour plates rely on high strength steel alloys. Metals such as lithium and magnesium are used for Armour plates
  • Springs that are made up of Cu or Be have high strength
  • The alloy used in the construction of aircraft is Mg - Al (magnesium - aluminum) -because they're lightweight and reduces the cost efficiency of fuel consumption.
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