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General
Composites Knowledge |
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Sample Test
Questions |
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1.1 |
General characteristics of composite materials include: |
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A. |
High
strength, low weight, good corrosion resistance |
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B. |
Low strength, high weight, flexible design requirements |
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C. |
Good corrosion resistance, low durability, low weight |
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1.2 |
The first recorded modern composite product molded was: |
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A. |
The Corvette body |
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B. |
A truck hood |
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C. |
A small boat hull |
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Sample
Question Answers |
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1.1 |
A |
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1.2 |
C |
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Composites Manufacturing
Processes |
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Sample Test
Questions |
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2.1 |
The terms “hand lay-up" and "spray-up” refer to: |
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A. |
How the glass reinforcement is applied |
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B. |
How the resin is applied
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C. |
The type of application equipment used |
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2.2 |
The primary factor for thickness control of a chopped laminate is:
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A. |
The chopper operator |
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B. |
The flow rate of the spray gun |
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C. |
The type of gun roving used |
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Sample
Question Answers |
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2.1 |
A |
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2.2 |
A |
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Composites Materials |
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Sample Test
Questions |
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3.1 |
When thermoset resins are converted from a liquid to a
solid: (Indicate all that apply)
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A. |
The polymerization process is irreversible |
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B. |
The polymerization process is reversible with the
application of heat |
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C. |
The polymerization process converts the resin form a liquid
to a solid |
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3.2 |
The characteristics of vinyl ester resins include:
(Indicate all that apply)
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A. |
Superior corrosion resistance |
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B. |
Good toughness |
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C. |
Similar handling characteristics to polyester resin |
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Sample
Question Answers |
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3.1 |
A, C
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3.2 |
A, B, |
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Gel Coat Application |
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Sample Test
Questions |
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4.1 |
Another technically accurate term for gel coat is:
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A. |
An in-mold coating |
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B. |
An alkyd paint |
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C. |
Surface fill material |
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4.2 |
As a polyester resin converts from a liquid to a solid, it reaches
a point designated - “gel time”. Gel time is best described as:
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A. |
The point when polymerization occurs |
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B. |
The point between a liquid and a solid |
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C. |
The point
where maximum exotherm is produced |
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Sample
Question Answers |
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4.1 |
A |
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4.2 |
B |
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Open Molding Laminating Techniques |
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Sample Test
Questions |
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5.1 |
In
the spray-up process, chop distribution across the mold is
controlled by:
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A. |
The weight per yard of the gun roving |
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B. |
The type of spray equipment used |
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C. |
The
operators technique and set-up of the spray gun |
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5.2 |
A resin starved laminate will result in: (Indicated all that
apply)
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A. |
Weak parts |
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B. |
Excessive exotherm |
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C. |
Poor curing |
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D. |
Excessive patching |
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E. |
Inadequate glass content |
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Sample
Question Answers |
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5.1 |
C
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5.2 |
A, C, D |
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Controlled Spraying |
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Sample Test
Questions |
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6.1 |
When applying gel coat, about 50% of the total emissions take
place during the spray application phase of the process:
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A. |
True |
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B. |
False |
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6.2 |
When setting-up a spray gun, if the pump pressure is increased
after a fully developed spray pattern is achieved:
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A. |
An over-developed spray pattern will result |
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B. |
Styrene emissions will increase |
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C. |
Overspray will increase |
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D. |
All of the above |
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Sample
Question Answers |
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6.1 |
A |
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6.2 |
D |
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Fluid Handling
Equipment Principles |
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Sample Test
Questions |
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7.1 |
The presence of oil in a plant compressed air system can:
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A. |
Be useful in lubricating spray equipment |
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B. |
Contaminate resin and gel coat |
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C. |
Cause back pressure in air lines |
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7.2 |
The fluid delivery characteristic of an airless spray gun used to
apply resin or gel coat is:
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A. |
Low volume delivery |
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B. |
Low fluid tip pressure |
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C. |
Low overspray |
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D. |
None of the above |
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Sample
Question Answers |
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7.1 |
B
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7.2 |
D |
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Composites Plant Safety |
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Sample Test
Questions |
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8.1 |
An MSDS is required to contain information concerning:
(Indicate all that apply)
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The source of a chemical |
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B. |
The name of the operators who processed the chemical |
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C. |
Fire hazards of a chemical |
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D. |
The cost of the chemical compounds |
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E. |
Personal safety precautions for handling a chemical |
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8.2 |
When polyester resin cures, it creates an exothermic reaction
which produces:
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A. |
A resin smell |
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B. |
Heat |
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C. |
A color change |
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Sample
Question Answers |
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8.1 |
A, C, E
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8.2 |
B |
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Open Molding Quality Assurance |
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Sample Test
Questions |
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9.1 |
The procedural quality control method can eliminate as much as 90%
of potential problems in open molding composites production.
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A. |
True |
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B. |
False |
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9.2 |
The lack of written procedures in a production operation leads to:
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A. |
Constant experimentation in production |
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B. |
Production inconsistency |
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C. |
Lack of repeatability |
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D. |
All of the above |
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Sample
Question Answers |
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9.1 |
A
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9.2 |
D |
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