PAES 319

Question 1

synthetic organic material, with or without incorporation of fillers, binders, pigments and dyes, shaped by casting or molding

Answer 1

plastic

Question 2

simple unpolymerized form of chemical compound

Answer 2

monomer

Question 3

number of structural units linked together by covalent bonds

Answer 3

polymer

Question 4

polymers consisting of more than one monomer

Answer 4

copolymer

Question 5

non-ionic chemical bond formed by stored electrons

Answer 5

covalent

Question 6

substances that melt on heating and are processes in this state
by a variety of extrusion and molding process

Answer 6

thermoplastic

Question 7

substances that cannot be melted and remelted

Answer 7

thermosets

Question 8

temperature at which the plastic can withstand without incurring a change in its physical
properties

Answer 8

service temperature

Question 9

provides high strength and stiffness while offering enhanced
dimensional stability and ease of machining.

Answer 9

acetals

Question 10

made from virgin acrylic monomer and offers superior optical clarity
and light transmission.

Answer 10

acrylic

Question 11

one of the most versatile and widely used thermoplastic
materials.

Answer 11

Polymide (nylon)

Question 12

amorphous thermoplastic with excellent dimensional stability
and good strength and stiffness over a wide range of service temperatures.

Answer 12

polycarbonate

Question 13

inexpensive alternative to metals, ceramics, and wood because it is self-lubricating; long-wearing; and shatter-, abrasion-, and corrosion-resistant.

Answer 13

polyethylene (Ultra High Molecular Weight)

Question 14

light weight, being less dense than water

Answer 14

Polypropylene

Question 15

known as Teflon is based on chain of carbon
atoms

Answer 15

Polyterafluoroethylene

Question 16

thermoplastic that is a polymer of vinyl chloride.

Answer 16

Polyvinyl chloride