Functional Materials - Composites and Polymers
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Questions and Answers

What is the primary function of the reinforcement in a composite material?

  • To increase the strength and stiffness of the matrix (correct)
  • To reduce the cost of the material
  • To change the color of the material
  • To reduce the weight of the material

What type of composite material is used in aeronautical applications such as aircrafts and rockets?

  • Ceramic-matrix composite
  • Polymer Matrix composite
  • Metal matrix composite
  • Any of the above (correct)

What is an example of a synthetic composite material?

  • Mud Bricks
  • Fibre glass
  • Reinforced Concrete
  • All of the above (correct)

In which industry are composite materials commonly used to make components such as propellants and shafts?

<p>Marine (C)</p> Signup and view all the answers

What is the function of the matrix in a composite material?

<p>To bind the dispersed filament and transmit the load (A)</p> Signup and view all the answers

What type of fiber is commonly used in composite materials?

<p>All of the above (D)</p> Signup and view all the answers

What is the advantage of Aramid fibre reinforced composites in applications such as automobile clutches and brakes?

<p>High wear resistance (A)</p> Signup and view all the answers

What is the characteristic of long fibre reinforced composites?

<p>They are ductile and capable of absorbing energy (D)</p> Signup and view all the answers

What is the application of Aramid-Fibre reinforced polymer composites?

<p>Protective clothing and body armour (B)</p> Signup and view all the answers

What is the characteristic of Al2O3 and/or Carbon reinforced metal composites?

<p>Low density and high strength (A)</p> Signup and view all the answers

What is the advantage of using composites containing Aramid fibres over composites containing asbestos?

<p>Aramid fibres are more effective in reinforcement (C)</p> Signup and view all the answers

What is the application of Short Aramid fibre reinforced composites?

<p>Automobile clutches and brakes (B)</p> Signup and view all the answers

What is a characteristic of a composite material?

<p>The components maintain their identity within the composite (C)</p> Signup and view all the answers

What type of composite material is likely to be used in the aerospace industry?

<p>Advanced functional ceramics (D)</p> Signup and view all the answers

Which type of polymer is known for its conducting properties?

<p>Polyacetylene (A)</p> Signup and view all the answers

What is an application of advanced functional materials in the automotive industry?

<p>Manufacturing of lightweight and durable car parts (D)</p> Signup and view all the answers

What is a top-down approach in the synthesis of nano materials?

<p>Breaking down bulk materials into smaller particles (B)</p> Signup and view all the answers

What is a characteristic of nano materials compared to bulk materials?

<p>They have different physical and chemical properties (B)</p> Signup and view all the answers

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