Composite Materials & Its Properties

Question 1

What is a composite material?

Answer 1

A composite material is made from two or more constituent materials with significantly different physical or chemical properties.

Question 2

True or False: Composite materials can be engineered to achieve specific mechanical properties.

Answer 2

True

Question 3

Fill in the blank: The two main components of a composite material are the matrix and the __________.

Answer 3

reinforcement

Question 4

Which of the following is NOT a common type of composite material? A) Fiberglass B) Concrete C) Aluminum

Answer 4

C) Aluminum

Question 5

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

Answer 5

The matrix binds the reinforcement together and helps transfer loads between them.

Question 6

Name one advantage of using composite materials over traditional materials.

Answer 6

Composite materials often have a higher strength-to-weight ratio.

Question 7

True or False: Composite materials are only used in the aerospace industry.

Answer 7

False

Question 8

What is the role of reinforcement in composite materials?

Answer 8

Reinforcement provides strength and stiffness to the composite material.

Question 9

Fill in the blank: __________ composites are made using a polymer matrix.

Answer 9

Polymer

Question 10

What type of composite material is created by combining metal and ceramic?

Answer 10

Metal matrix composite (MMC)

Question 11

True or False: The properties of composite materials can be tailored by changing the type or arrangement of the reinforcements.

Answer 11

True

Question 12

What is a common application of composite materials in construction?

Answer 12

Reinforced concrete

Question 13

Which material is commonly used as a reinforcement in composite materials?

Answer 13

Glass fibers

Question 14

Fill in the blank: The process of creating composite materials often involves __________ techniques.

Answer 14

layering

Question 15

What is the term for the ability of a composite material to absorb energy without failing?

Answer 15

Toughness

Question 16

True or False: Composites are generally more expensive to produce than traditional materials.

Answer 16

True

Question 17

What is one disadvantage of composite materials?

Answer 17

They can be more difficult to recycle than traditional materials.

Question 18

What does the acronym ‘FRP’ stand for in the context of composite materials?

Answer 18

Fiber Reinforced Polymer

Question 19

Which property makes composites ideal for use in automotive applications?

Answer 19

Lightweight yet strong

Question 20

Fill in the blank: The __________ is a critical factor in determining the performance of a composite material.

Answer 20

interface between matrix and reinforcement