Fiber Test Questions and Answers With Verified Solutions 2025
Crosswise thread/yarn which wrap around the lengthwise thread/yarn - ✔✔Weft
Lengthwise thread/yarn that run vertical - ✔✔Warp
Determines the shape of synthetic fibers
-changing the size and shape of these alters the quality of the fiber - ✔✔Spinneret
Tape
Forceps
Vacuum
Lint roller - ✔✔Collection methods
Microscopy, Light Analysis, Chromatology - ✔✔Tests that don't damage the fiber:
Type (composition, rarity, location in crime scene)
Color (composition of dye)
Number of Fibers (more found=more violent crime)
Origination of Fiber (car, carpet, clothes, etc.) - ✔✔Four things you look at when evaluating fiber
evidence
Animal, Plant, and Mineral - ✔✔types of natural fibers
Hair, webbing, fur - ✔✔Types of animal fibers:
What fibers that are too short in their natural state are spun into
-any given yarn has a direction of twist, which forensic scientists analyze - ✔✔Yarn
, A very thin type of yarn - ✔✔Thread
Number of weft and warp threads in a square inch - ✔✔Thread count
- ✔✔Twill Weave
- ✔✔Tabby Weave
- ✔✔Satin Weave
-Most popular type of animal fiber
-very loosely spun for comfort--> leaves a lot of trace evidence
-Most common fiber=wool from sheep
-ex: wool, cashmere from goats - ✔✔Hair (type of animal fiber)
Most common type of animal fiber (hair); from sheep
BURN:
-->shrivels up, turns brownish-orange, curls away from flame when heated.
-->Catches fire, yellow then orange flame
-->smells like burnt hair.
DYE:
-->orange-red, dark (second darkest), lighter than cotton
MICROSCOPE:
-->looks like coronal hair - ✔✔Wool
Type of animal fiber (from goats) - ✔✔Cashmere
Comes from a cocoon made by a caterpillar reared in captivity
-very long fibers which do not shed easily - ✔✔Silk
Crosswise thread/yarn which wrap around the lengthwise thread/yarn - ✔✔Weft
Lengthwise thread/yarn that run vertical - ✔✔Warp
Determines the shape of synthetic fibers
-changing the size and shape of these alters the quality of the fiber - ✔✔Spinneret
Tape
Forceps
Vacuum
Lint roller - ✔✔Collection methods
Microscopy, Light Analysis, Chromatology - ✔✔Tests that don't damage the fiber:
Type (composition, rarity, location in crime scene)
Color (composition of dye)
Number of Fibers (more found=more violent crime)
Origination of Fiber (car, carpet, clothes, etc.) - ✔✔Four things you look at when evaluating fiber
evidence
Animal, Plant, and Mineral - ✔✔types of natural fibers
Hair, webbing, fur - ✔✔Types of animal fibers:
What fibers that are too short in their natural state are spun into
-any given yarn has a direction of twist, which forensic scientists analyze - ✔✔Yarn
, A very thin type of yarn - ✔✔Thread
Number of weft and warp threads in a square inch - ✔✔Thread count
- ✔✔Twill Weave
- ✔✔Tabby Weave
- ✔✔Satin Weave
-Most popular type of animal fiber
-very loosely spun for comfort--> leaves a lot of trace evidence
-Most common fiber=wool from sheep
-ex: wool, cashmere from goats - ✔✔Hair (type of animal fiber)
Most common type of animal fiber (hair); from sheep
BURN:
-->shrivels up, turns brownish-orange, curls away from flame when heated.
-->Catches fire, yellow then orange flame
-->smells like burnt hair.
DYE:
-->orange-red, dark (second darkest), lighter than cotton
MICROSCOPE:
-->looks like coronal hair - ✔✔Wool
Type of animal fiber (from goats) - ✔✔Cashmere
Comes from a cocoon made by a caterpillar reared in captivity
-very long fibers which do not shed easily - ✔✔Silk
