Bissoy.com
Doctors Medicines MCQs Q&A

With reference to Fibre-reinforced plastic, consider the following statement: 1. It is a composite material made of a polymer matrix reinforced with fibres. 2. Bakelite was the first fibre-reinforced plastic. Which of the statements given above is/are correct?

With reference to Fibre-reinforced plastic, consider the following statement: 1. It is a composite material made of a polymer matrix reinforced with fibres. 2. Bakelite was the first fibre-reinforced plastic. Which of the statements given above is/are correct? Correct Answer Both 1 and 2

The correct answer is Both 1 and 2

Key Points

  • Fibre-reinforced plastic (FRP) (also known as a fibre-reinforced polymer) is a composite material made of a polymer matrix reinforced with fibres. Hence, statement 1 is correct.
  • Composites are established as an alternative material system to traditional materials such as steel, wood, aluminium and concrete.
  • Bakelite was the first fibre-reinforced plastic. Hence, statement 2 is correct.
  • Materials used as Fibres in FRP composites
    • Glass, carbon, basalt or aramid and at times fibres such as paper, wood or asbestos are also used.
  • Materials used as Polymers in FRP composites
    • The polymer used is usually an epoxy, vinyl ester or polyester thermosetting plastic or phenol-formaldehyde resin.
  • Manufacturing of FRP Composite Material
    • FRP involves two distinct processes, the first is the process whereby the fibrous material is manufactured and formed, the second is the process whereby fibrous materials are bonded with the matrix during moulding.

Applications of FRP in the aviation and automobile industry:

  • Fibre-reinforced plastics are best suited for any design program that demands weight savings, precision engineering, finite tolerances, and the simplification of parts in both production and operation.
  • A moulded polymer artefact is cheaper, faster, and easier to manufacture than cast aluminium or steel artefact, and maintains similar and sometimes better tolerances and material strengths.

Related Questions

Focusing on plastic pollution, the June issue of the National Geographic magazine created quite a buzz on social media, contrary to expectations after the cover featured a plastic bag submerged in an ocean with a ’Planet or Plastic?’ text on it. Ironically, the magazine itself was wrapped in a double layer of plastic. Which of the following options can be the reason for the magazine to go viral on the internet as inferred from the statements? I. It highlighted the amount of single-use plastic that enters in the world’s oceans which is a major environmental concern these days. II. National Geographic kicked off its ‘Planet or Plastic’ campaign, the magazine’s multiyear effort to raise awareness about the global plastic trash crisis through the cover. III. The magazine about ocean plastic pollution came wrapped in a plastic bag inside another plastic bag. IV. Because they realized the major flaw and announced that the magazine will no longer be shipped to readers in a plastic bag but will be sent out in a paper envelope instead.
Consider the following statements for a composite material: 1. It is considered to be any multiple materials that exhibit a significant proportion of the properties of both constituents. 2. Constituent phases in a composite must be chemically similar. 3. A matrix combined with a reinforcing material is used in the composite. 4. Thermosetting epoxy resin is used as the matrix for some kinds of composition. Which of these statements are correct?
Consider the following pattern of numbers: \(\dfrac{\begin{matrix} 8 \\\ 6 \ \\\ 4 \ \end{matrix}}{ \ 6} \ \ \dfrac{\begin{matrix} 10 \\\ 5 \ \\\ 6 \ \end{matrix}}{ \ 11} \ \ \dfrac{\begin{matrix} 15 \\\ 7 \ \\\ 8 \ \end{matrix}}{ \ 16} \ \ \dfrac{\begin{matrix} 13 \\\ 4 \ \\\ 8 \ \end{matrix}}{ \ ?}\) What is the number at ? in the above pattern?
Consider the following statements: 1. Functions of reinforcement in reinforced soil and in reinforced concrete are comparable. 2. The design of a geotextile reinforced wall is similar in principle to that of a reinforced earth wall. Which of the above statements is/are correct?
A glass reinforced polymer composite comprises of 35 volume % glass fiber and 65 volume % of polymer resin. The elastic moduli of glass and polymer resin are respectively 70 GPa and 3 GPa. The elastic modulus of the composite (in GPa) under iso-strain state is
With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements : 1. Its fibres can be blended with wool and cotton fibres to reinforce their properties. 2. Containers made of it can be used to store any alcoholic beverage. 3. Bottles made of it can be recycled into other products. 4. Articles made of it can be easily disposed of by incineration without causing greenhouse gas emissions. Which of the statements given above are correct ?
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to beat variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: All threads are strings. Statement II: All fibres are threads. Conclusion I: All strings are fibres. Conclusion II: All fibres are strings.
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to beat variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: All threads are strings Statement II: All fibres are threads Conclusion I: All strings are fibres Conclusion II: All fibres are strings
Which of the following statement(s) is/are CORRECT? I. Bakelite is a good conductor of heat. II. Bakelite is a poor conductor of electricity. III. Bakelite can be softened by heating.
Consider the following statements regarding homogenous coordinate transformation matrix: 1. A homogenous transformation matrix can be considered to consist of four sub-matrices. 2. The upper left 3 × 3 sub-matrix represents the position vector. 3. The upper right 3 × 1 sub-matrix represents the rotation matrix. 4. The lower left 1 × 3 sub-matrix represents perspective transformation. Which of the above statements are correct?