Engineering Board Exam Reviewer · Engineering Materials · medium

Plexiglas (acrylic) is chemically:

1. Polystyrene
2. Polymethyl methacrylate (PMMA)
3. Polycarbonate
4. Polypropylene

Answer

B. Polymethyl methacrylate (PMMA)

Solution

PMMA is a transparent thermoplastic used as a glass substitute.

More Engineering Materials questions

1. Teflon is the trade name for:
2. A polymer made of two or more different types of monomers is called a:
3. The number of repeat units (mers) in a polymer chain is called the:
4. Polymers that can be stretched to large elastic strains and recover their shape, like rubber, are called:
5. Polymers that form a permanent cross-linked network on curing and cannot be remelted are called:
6. Polymers that soften on heating and can be remolded repeatedly are called:
7. Silicon carbide and tungsten carbide are commonly used as:
8. Gypsum is added to Portland cement to:
9. The hardening of Portland cement paste is mainly due to:
10. Portland cement is produced mainly by heating a mixture of:

All Engineering Materials Reviewer questions