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WorksheetsFibers Review
Total questions: 40
Worksheet time: 40mins
Fibers are considered _______ evidence.
Testimonial
Individual
Class
Circumstantial
Fibers can be characterized based on comparisons of:
Chemical Properties
Class Properties
Physical Properties
Both Physical & Chemical Properties
Fibers are usually made up of many _______ twisted or bonded together
Yarns
Threads
Weaves
Filaments
A woven cloth material made of fibers is called a:
Weave
Fabric
Yarn
Filament
Natural fibers come from the following sources EXCEPT:
Man-made
Vegetables
Animals
Inorganic sources
Which of the following is NOT an example of a natural fiber?
Silk
Cashmere
Nylon
Cotton
Which of the following is NOT an example of an artificial (synthetic) fiber?
Wool
Spandex
Rayon
Polyester
________ is a vegetable fiber that is strong, flexible, moisture absorbent, and not shape-retentive.
Asbestos
Spandex
Cotton
Wool
Protein fibers like wool and mohair usually come from:
Vegetables
Polyesters
Minerals
Animals
Examples of mineral fibers include:
Fiberglass
Asbestos
Acetate
Fiberglass & Asbestos
Which of the following are classified as synthetic fibers?
Nylon
Spandex
Polyester
All of the above
A ______ is a continuous strand of fibers or filaments, usually twisted around.
Yarn
Weft
Warp
Fabric
Every weave contains two types of yarns:
Warp & blend
Weft & Blend
Warp & Weft
Weft & Blend
A fabric made up of two or more different types of fibers is called:
Weave
Blend
Yarn
Fabric
Which weave pattern most closely resembles a checkerboard?
Plain
Satin
Twill
Knit
Which of the following is NOT a regular weave pattern?
Twill
Silk
Satin
Plain
In synthetic fibers, a long molecule created by many repeating units all chemically joined together is called:
Monomer
Filament
Polymer
Weave
Synthetic fibers of different sizes and shapes are created by forcing a hot material through:
Funnel
Fabric
Spinneret
Press
In textile manufacturing, there are more than 7,000 different formulas of:
Fabrics
Cotton
Nylon
Dyes
_______ is a method a CSI may use to separate all the dyes from a single fabric for comparative analysis.
Microscopy
Burning
Chromatography
Density Measurement
When clothes are collected at a crime scene, they are stored in separate paper bags
True
False
Tapes should NOT be used to lift fibers off of skin or inanimate objects.
True
False
Fluorescence can be used for spotting fibers as trace evidence.
True
False
Fibers have probative value.
True
False
Match the Definition: When different fibers have different flame colors, odors, smoke or leave different residues
Microscopic Observation
Burning
Chemical Test
Density
Refractive Index
Match the Definition: A measure of the bending of light as it passes through a sample of fabric
Microscopic Observation
Burning
Chemical Test
Density
Refractive Index
Match the Definition: The appearance of a fiber when it is magnified
Microscopic Observation
Burning
Chemical Test
Density
Refractive Index
Match the Definition: When fibers decay or react differently when they are dissolved.
Microscopic Observation
Burning
Chemical Test
Density
Refractive Index
Match the Definition: The mass of a fiber divided by its volume.
Microscopic Observation
Burning
Chemical Test
Density
Refractive Index
Name the weave pattern shown
Knit
Plain
Satin
Twill
Name the weave pattern shown
Knit
Plain
Satin
Twill
Name the weave pattern shown
Knit
Plain
Satin
Twill
Name the weave pattern shown
Knit
Plain
Satin
Twill
The spinneret shape labeled A is called
Dogbone
Octalobal
irregular
trilobal
Round
The spinneret shape labeled B is called
Dogbone
Octalobal
irregular
trilobal
Round
The spinneret shape labeled C is called
Dogbone
Octalobal
irregular
trilobal
Round
The spinneret shape labeled D is called
4-Lobed
Octalobal
irregular
trilobal
Round
The spinneret shape labeled E is called
4-Lobed
Octalobal
irregular
trilobal
Round
The spinneret shape labeled F is called
4-Lobed
Multi-lobed
irregular
trilobal
Round
The spinneret shape labeled G is called
4-Lobed
Octalobal
multi-lobed
trilobal
Round
