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Question
Assertion (A): Aluminium is used to make aircraft.
Reason (R): It is a light-weight metal.
Options
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true but (R) is not the correct explanation of (A).
(A) is true but (R) is false.
(A) is false but (R) is true.
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Solution
Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation:
Aluminium is widely used in aircraft because it is a light-weight metal its low density and good strength to weight ratio allow aircraft structures to be strong yet light, improving payload capacity and fuel efficiency. The provided material notes that aluminium is “a light, tough and durable metal” and that it is used in manufacturing aeroplanes for being light in weight (and for resisting rust).
