komposit in aircraft

1. 1. Which of the following is a primary benefit of using composite materials in aircraft?

• 1. A. Increased weight

• 1. B. Reduced fuel efficiency

• 1. C. High strength-to-weight ratio

• D. Increased corrosion susceptibility

1. 2. Which composite material is most commonly used for structural components like wings and fuselage?

• A. Glass fiber

• 1. B. Kevlar

• 1. C. Carbon fiber

• 1. D. Aluminum

1. 3. What is the main advantage of using carbon fiber composites in aircraft structures?

• A. They are cheaper than metals

• B. They are very light and strong

• 1. C. They are easier to repair than metals

• 1. D. They have better corrosion resistance than metals

1. 4. Which of the following is NOT a typical application of composites in an aircraft?

• 1. A. Aircraft fuselage

• 1. B. Aircraft landing gear

• 1. C. Aircraft wing skins

• 1. D. Aircraft cabin interior panels

1. 5. Which of the following is a characteristic of Kevlar used in composites for aircraft?

• A. High thermal conductivity

• 1. B. High impact resistance

• C. Low tensile strength

• D. High weight

1. 6. What is the purpose of the resin matrix in a composite material?

• 1. A. To provide the material's strength

• 1. B. To bind the fibers together and distribute loads

• 1. C. To reduce the weight of the material

• 1. D. To increase the material's flexibility

1. 7. Which of the following types of weaving pattern is commonly used for carbon fiber composites?

• 1. A. Plain weave

• B. Satin weave

• 1. C. Twill weave

• D. All of the above

1. 8. Why are composite materials, especially carbon and glass fibers, preferred over metals in some aircraft components?

• 1. A. They are more prone to corrosion

• 1. B. They provide higher structural integrity for less weight

• 1. C. They are easier to manufacture

• 1. D. They are cheaper than metals

1. 9. What is the role of an autoclave in the production of composite aircraft components?

• A. To heat treat the material to improve its hardness

• B. To cure the resin and bond the fibers under pressure

• 1. C. To test the strength of the composite material

• 1. D. To mold the composite into its final shape

1. 10. Which of the following is a disadvantage of using composite materials in aircraft?

• A. Difficulty in detecting internal damage

• 1. B. Increased weight

• 1. C. Higher susceptibility to heat

• 1. D. Reduced strength