Aerospace Materials Mcqs

Q:

Which of the following property of a material is preferred in the construction of an aircraft?

A) Ductility B) Elasticity
C) Hardness D) High density
 
Answer & Explanation Answer: D) High density

Explanation: Ductility, elasticity and hardness are all preferred in the construction of an aircraft. High density is not preferred. Instead, low density is preferred.

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Q:

Hardness is inversely proportional to strength.

A) True B) False
 
Answer & Explanation Answer: B) False

Explanation: Hardness is directly proportional to strength. As the hardness of a material increases, it’s strength increases. Hardness is the tendency of a material to resist penetration. Strength of a material is its capacity to withstand a load.

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64
Q:

The property of being liquefied due to heat is known as ______

A) stress B) contraction
C) normalizing D) fusibility
 
Answer & Explanation Answer: D) fusibility

Explanation: The property of being liquefied due to heat is known as fusibility. Contraction is the reduction in length of material and stress is the load on the material.

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