1. Define the following terms:
a) Grooving
b) Elastomer
c) Parabola
d) Situation
2. State two basic types of polymerization
3. One of the two classes of plastics is thermosetting plastics.
a) Explain what is meant by plastic memory.
b) Show graphical representation of thermosetting plastics.
4. As a designer to make a product you need to go through the design process and of the
stages is called the situation.
a) Explain what is the meant by the "design process".
b) State three important things a good situation derived from the theme should have.
5. One example of framing joints is the mortise and tenon joint.
a) What are framing joints?
b) With the aid of the diagram, explain the mortise and tenon joint.