tillery composites practice questions with
answers
1. Three advantages offered by composites are:: Light weight High Strength
Corrosion Resistant
2. The main parts of a fiber-reinforced composite are the:: Fibers and Matrix
3. The two c ommon tvoes of tiberglass are:: E-Glass S-Glass
4. is the name given to aromatic polymide fibers, such as
Kevlar: Aramic
5. Because of its many excellent properties, Aramid is ideal for aircraft parts that are sublect to:
High stress and vibration
6. 6. Carbon fiber has high tensile strength, but promotes (electrolvtic or galvanic)
corrosion when bonded is not specific to aluminum or steel: galvanic
7. Firewalls may be made of fiber composites to dissipate the heat.: Ceramic
8. The strength of a reinforcing material in a matrix depends on what four things?: weave of the
material
the wetting process
filament tensile strength
design of the part
9. The threads which run the length of the fabric as it comes off the bolt are referred to as the (warp
or weft).: warp
10.The tightly woven edge produced by the weavers to prevent the edges from raveling is
referred to as the edge: salvage
11.the is at a 45° angle to the warp threads.: bias
12.Material in which all of the major fibers run in one direction, giving strength in that direction, are
known as: Unidiretional
13.Chopped fibers that are compressed together are often called: mats
14.Woven fabrics are resistant to fiber breakout, delamination, and more damage
tolerant than unidirectional materials.: more
15.15. The two categories of resin matrix systems are:: thermopiostic therms setting
16.Thermoplastic and thermosetting resins have strength in themselves, and
reinforced with paper, cloth, or other filaments.: little, must be
17.A thermoplastic resin change shape if sufficiently re-heated while a thermosetting
resin not) change shape if re-heated.: will, will not
18. Epoxy resin
matrices are two-part systems consisting of a and a
. The acts as a curing agent by initiating a chemical reaction to harden the epoxy.: resin,
catalyst, catalyst
19.The procedures for mixing resin systems very important: very
For assistance with assignments contact
, tillery composites practice questions with
answers
20. is the working life of a resin batch while is the storage life of
unopened resin containers.: pot life, shelf life
21.Pre-impregnated fabrics, or pre-pregs, are simply fabrics that have the
system already impregnated into the fabric.: resin
22. Pre-preg fabrics must be kept to prevent the
resin from curing.: -
frozen
23. When the life of a pre-preg fabric has expired it
be used for aircraft applications.: shelf, may not
24. are a popular thixotropic agent for use with
thermosetting resins to give the resin good body with a minimum of weight.-
: microbaloons
25.In addition to microballoons, and may be
used as filler material when repairing composite structures.: Choped fibers, flox
26.Sandwich-construction core material may be made of.: Honeycomb foam
Balsa Wood
27.25. Honeycomb (only/never) tears in the ribbon direction: only
28.Closed cell styrofoam should be used with (epoxy or polyester) resin
only.: epoxy
29.foam can be used with either epoxy or polyester resin.: Polyurethane
30.Ten manufacturing methods that may be used with laminated construction are:: compression
molding
Vacuum Bagging
Out of Autoclave
Filament winding
Fiber placement and Tae Laying
Vacuum Resin Infusion
double vacuum Bagging
Resin Transfer Molding
Pultrusion
Wet layup
31.The purpose of paint on a composite structure is to:: Sed the surrace trom moisture, cosmetc
32.What five methods are used to dissipate the electrical charge on composite structures: Aluminum
wires
aluminum flame sprayed onto the component piece
of metal bonded to the composite
fine mesh screen
thin aluminum foil sheet
For assistance with assignments contact
answers
1. Three advantages offered by composites are:: Light weight High Strength
Corrosion Resistant
2. The main parts of a fiber-reinforced composite are the:: Fibers and Matrix
3. The two c ommon tvoes of tiberglass are:: E-Glass S-Glass
4. is the name given to aromatic polymide fibers, such as
Kevlar: Aramic
5. Because of its many excellent properties, Aramid is ideal for aircraft parts that are sublect to:
High stress and vibration
6. 6. Carbon fiber has high tensile strength, but promotes (electrolvtic or galvanic)
corrosion when bonded is not specific to aluminum or steel: galvanic
7. Firewalls may be made of fiber composites to dissipate the heat.: Ceramic
8. The strength of a reinforcing material in a matrix depends on what four things?: weave of the
material
the wetting process
filament tensile strength
design of the part
9. The threads which run the length of the fabric as it comes off the bolt are referred to as the (warp
or weft).: warp
10.The tightly woven edge produced by the weavers to prevent the edges from raveling is
referred to as the edge: salvage
11.the is at a 45° angle to the warp threads.: bias
12.Material in which all of the major fibers run in one direction, giving strength in that direction, are
known as: Unidiretional
13.Chopped fibers that are compressed together are often called: mats
14.Woven fabrics are resistant to fiber breakout, delamination, and more damage
tolerant than unidirectional materials.: more
15.15. The two categories of resin matrix systems are:: thermopiostic therms setting
16.Thermoplastic and thermosetting resins have strength in themselves, and
reinforced with paper, cloth, or other filaments.: little, must be
17.A thermoplastic resin change shape if sufficiently re-heated while a thermosetting
resin not) change shape if re-heated.: will, will not
18. Epoxy resin
matrices are two-part systems consisting of a and a
. The acts as a curing agent by initiating a chemical reaction to harden the epoxy.: resin,
catalyst, catalyst
19.The procedures for mixing resin systems very important: very
For assistance with assignments contact
, tillery composites practice questions with
answers
20. is the working life of a resin batch while is the storage life of
unopened resin containers.: pot life, shelf life
21.Pre-impregnated fabrics, or pre-pregs, are simply fabrics that have the
system already impregnated into the fabric.: resin
22. Pre-preg fabrics must be kept to prevent the
resin from curing.: -
frozen
23. When the life of a pre-preg fabric has expired it
be used for aircraft applications.: shelf, may not
24. are a popular thixotropic agent for use with
thermosetting resins to give the resin good body with a minimum of weight.-
: microbaloons
25.In addition to microballoons, and may be
used as filler material when repairing composite structures.: Choped fibers, flox
26.Sandwich-construction core material may be made of.: Honeycomb foam
Balsa Wood
27.25. Honeycomb (only/never) tears in the ribbon direction: only
28.Closed cell styrofoam should be used with (epoxy or polyester) resin
only.: epoxy
29.foam can be used with either epoxy or polyester resin.: Polyurethane
30.Ten manufacturing methods that may be used with laminated construction are:: compression
molding
Vacuum Bagging
Out of Autoclave
Filament winding
Fiber placement and Tae Laying
Vacuum Resin Infusion
double vacuum Bagging
Resin Transfer Molding
Pultrusion
Wet layup
31.The purpose of paint on a composite structure is to:: Sed the surrace trom moisture, cosmetc
32.What five methods are used to dissipate the electrical charge on composite structures: Aluminum
wires
aluminum flame sprayed onto the component piece
of metal bonded to the composite
fine mesh screen
thin aluminum foil sheet
For assistance with assignments contact
