Quiz: Section 1.2 Classification

1. If I tell you that the specific gravity of steel is 7.8, what is the specific gravity of a graphite fiber approximately equal to?

2. What manufacturing method is used for short production runs of polymer matrix composite structures in the automotive industry?

3. Which of these is an example of aramid fibers?

4. One of the main reasons C-C composites are used in aircraft brakes is the specific heat of C-C composites. How many times that of steel is the specific heat of C-C composites?

5. What is E-glass type fiber used for?

6. What are the current service temperature limits polymers can reach?

7. What approximate range of temperatures do satellites face in space?

8. Thermoset plastic polymers have the following type of bonding

9. Which of the following is a drawback for phenolic resin systems?

10. What is a characteristic of thermoplastics?