M&P Chapter 2

Question 1

Metals, ceramics, semiconductors, and polymers are the four major groups of which types of materials?

Answer 1

Engineering materials.

Question 2

An example of a substitutional alloy, one where a specific atom in the metal has been replaced by another from a different element, would be:

Answer 2

Brass

Question 3

A basic property of metal that allows it to be extensively deformed under compression without fracturing at room temperature and relatively high strain rates is called:

Answer 3

Malleability.

Question 4

Large quantities of metals are used in engineering materials because of:

Answer 4

Their wide variety of mechanical properties and ability to conduct electricity and heat.

Question 5

What type of engineering material has the ability to keep its strength at high temperature (higher than most metals and polymers), and is resistant to most chemicals because of the strength and stability of its bonds?

Answer 5

Ceramics.

Question 6

Thermistors are made from which of the following?

Answer 6

Intrinsic semiconductors.

Question 7

Diodes, light-emitting diodes, and transistors are all examples of which of the following?

Answer 7

Extrinsic semiconductors.

Question 8

Recycling and re-melting are two of the big advantages of which type of polymer?

Answer 8

Thermoplastic.

Question 9

Examples of natural composites would include which of the following?

Answer 9

Wood and granite.

Question 10

The properties of composites are greatly influenced by the type pf matrix and:

Answer 10

The type, shape, and size of the reinforcement materials used.