Question

The alloy used for making bodies of aircraft is

• A. steel
• B. bronze
• C. duralumin
• D. brass

Answer 1

The correct option is C

duralumin

The explanation for the correct option- (C) Duralumin

Duralumin - It is an alloy of aluminium.

Composition -

• Aluminium - 95%
• Copper - 4%
• Magnesium - 0.5%
• Manganese - 0.5%

Uses -

• It is used for making lightweight and strong aircraft bodies.
• It is used for making lightweight guns.

The explanation for the incorrect options-

(A) Steel - It is very strong but also very heavy so cannot be used.

(B) Bronze - It is very costly as well as a heavy alloy so cannot be used.

(D) Brass - It is very strong but costly and very heavy as compared to duralumin so cannot be used.

Hence, option (C) is correct.