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1. A major difference between laminates and reinforced plastics is that laminates have ____.
a.
fibers
b.
layers
c.
complex shapes
d.
complex shapes
ANSWER:
b
2. An important industrial use of laminates is in ____.
a.
soda bottles
b.
boat hulls
c.
sky lights
d.
helicopter blades
ANSWER:
d
3. An example of continuous extrusion laminating is ____.
a.
engraving stock
b.
plywood
c.
furniture
d.
textiles
ANSWER:
a
4. To create bread wrappers, the inner core (ply) is made of polypropylene with two outer layers of ____.
a.
polyvinyl chloride
b.
polyester
c.
polyethylene
d.
polyamide
ANSWER:
c
5. To discourage discoloration or spoiling, ____ barrier layers are incorporated into packaging films.
a.
silicon
b.
oxygen
c.
latex
d.
polyethylene
ANSWER:
b
6. To create a glossy water-resistant finish on paper, ____ is used.
a.
polyvinyl chloride
b.
acrylic
c.
an olefinic film
d.
latex
ANSWER:
c
7. Impregnated paper laminates often contain —-____ resins, such as urea, melamine, phenolic, polyester, and epoxy.
a.
molded
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b.
extruded
c.
thermoplastic
d.
thermosetting
ANSWER:
d
8. Foil-paper-polyethylene laminates are usually used for ____.
a.
moisture barrier pouch for soup mixes
b.
heat-sealable pouches for instant coffee
c.
heat-sealing pouches for pharmaceuticals
d.
scratch-resistant material for paperback books
ANSWER:
a
9. Hand layup laminates generally use ____ materials.
a.
molded
b.
extruded
c.
thermoplastic
d.
thermosetting
ANSWER:
d
10. A major advantage of hand layup is that it____.
a.
does not require skill
b.
is a safe process for workers
c.
has a high production rate
d.
has low-cost tooling
ANSWER:
d
11. Which material is the most commonly used for honeycomb core material?
a.
titanium
b.
aluminum
c.
glass
d.
craft paper
ANSWER:
b
12. An important use for cellular core sandwiches is in ____.
a.
refrigerator liners
b.
engraving stock
c.
automobile parts
d.
helicopter blades
ANSWER:
a
13. Today, high-pressure laminates have wide uses including products such as ____.
a.
engraving stock
b.
food containers
c.
Formica®
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d.
airfoils
ANSWER:
c
14. The thickness of the laminated composite is controlled by ____ and by a set of squeeze rollers.
a.
the amount of fluid extruded
b.
the heat of the rolling process
c.
the amount of time being rolled
d.
the number of layers it consists of
ANSWER:
d
15. Initially, ____ was an important electrical conductor until replaced by high-pressure industrial laminates.
a.
mica
b.
aluminum
c.
rubber
d.
wood
ANSWER:
a