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Forensic Fibers

Total questions: 48

Worksheet time: 34mins

Name
Class
Date
1.

Natural fibers come entirely from

a)

plant sources

b)

animal sources

c)

both

d)

neither

2.
The smallest indivisible unit of a textile is a...
a)
Fiber
b)
Fabric
c)
Yarn
d)
Thread
3.
Long strings that make up synthetic fibers are called...
a)
Monomers
b)
Macromolecules
c)
Polymers
d)
Threads
4.
A fiber made from rabbit hair is called...
a)
Cashmere
b)
Sisal
c)
Silk
d)
Angora
5.
This weave pattern results in shiny fabric with little friction...
a)
Twill
b)
Plain
c)
Satin
d)
Basket
6.

Hair can be collected from an animal to make textile fibers in all of the following ways EXCEPT:

a)

Shed

b)

Brushed

c)

Vacuumed

d)

Clipped

7.
Fibers are considered what kind of evidence? 
a)
Individual
b)
Class
c)
Direct
d)
Indirect
8.

Which of the following is NOT a natural fiber?

a)

Linen

b)

Bamboo

c)

Wool

d)

Nylon

9.

Nylon was created as an alternative to which natural fiber?

a)

Silk

b)

Acetate

c)

Acrylic

d)

Wool

10.

Which of the following is considered a luxury fiber, is expensive, and found in sweaters, hats, and scarves?

a)

Cashmere

b)

Acetate

c)

Linen

d)

Rayon

11.

This fiber is super stretchy and great to work out in, but it does not absorb moisture, so you stay wet in it.

a)

Spandex

b)

Acrylic

c)

Cotton

d)

Acetate

12.

This natural fiber often shrinks after its first wash. After that, it can easily be washed in the machine. It absorbs moisture well.

a)

Wool

b)

Cotton

c)

Bamboo

d)

Cashmere

13.

What type of weave pattern is shown?

a)

Plain

b)

Basket

c)

Satin

d)

Leno

14.

What type of weave pattern is shown?

a)

Plain

b)

Basket

c)

Satin

d)

Leno

15.

What type of weave pattern is shown?

a)

Twill

b)

Basket

c)

Satin

d)

Leno

16.

The most commonly used synthetic fiber:

a)

Rayon

b)

Polyester

c)

Nylon

17.
The name for man-made fibers is:
a)
processed fibers
b)
synthetic fibers
c)
natural fibers
d)
modified fibers
18.
Fibers that have spun together are called
a)
a textile
b)
yarn
c)
a mineral fiber
d)
a fiber
19.
When fibers are transferred directly from victim to suspect or suspect to victim, this is called:
a)
necessary transfer.
b)
direct transfer
c)
absolute transfer.
d)
None of these choices.
20.
A lengthwise yarn or thread in a weave
a)
polymer
b)
warp
c)
weft
d)
yarn
21.

What is the source of Linen?

a)

plant seed

b)

flax stem

c)

plant leaves

d)

sheep

22.

What hollow core fiber can be identified by the number of twists per inch

a)

silk

b)

wool

c)

hemp

d)

cotton

23.

Which natural fiber below is the shape of a triangle and glossy in appearance?

a)

cotton

b)

linen

c)

silk

d)

hemp

24.

What fiber smells like burning hair when burned?

a)

cotton

b)

jute

c)

silk

d)

wool

25.

The source of manilla is

a)

seed

b)

abaca plant

c)

mineral

d)

sheep

26.

Fibers are an excellent source of trace evidence because

a)

they are easily transferred from a victim to a suspect

b)

they are often overlooked by a suspect

c)

they can be easily collected and stored

d)

all of these choices

27.

A characteristic of natural fibers is that they

a)

are stronger than synthetic fibers

b)

will not break down when exposed to bright light

c)

melt at a lower temperature that synthetic fibers

d)

are affected by microscopic organisms

28.

Which of the following observations are used to help identify a specific fiber?

a)

smell of the burned fiber

b)

on contact with flame, does the fiber coil or melt?

c)

color and structure of the residue left after the fiber burns

d)

all of these choices

29.
silk
a)
collected from the cocoons from the caterpillar
b)
the smallest indivisible unit of textile, it must be at 100 times longer than wide
c)
things like clothing, carpets, and upholstery
d)
The transfer of evidence such as a fiber from a source (such as a carpet) to a person (suspect), and then to another person (victim)
30.
synthetic fiber
a)
a fiber made from a man-made substance such as plastic
b)
the smallest indivisible unit of textile, it must be at 100 times longer than wide
c)
things like clothing, carpets, and upholstery
d)
fibers that have been spun together
31.
textiles
a)
things like clothing, carpets, and upholstery
b)
the passing of evidence, such as fiber, from victim to suspect or vice versa
c)
fibers that have been spun together
d)
The transfer of evidence such as a fiber from a source (such as a carpet) to a person (suspect), and then to another person (victim)
32.
yarn
a)
fibers that have been spun together
b)
the passing of evidence, such as fiber, from victim to suspect or vice versa
c)
a collection of mineral crystals formed into recognizable pattern
d)
originated with petroleum products and are non cellulose-based fibers
33.

The smallest unit of textile material that has a length many times greater than its diameter is a(n)

a)

Fiber

b)

Cuticle

c)

Strand

d)

Tress

34.

The most prevalent plant fiber is:

a)

Hemp

b)

Cotton

c)

Mohair

d)

Wool

35.
A lengthwise yarn or thread in a weave
a)
polymer
b)
warp
c)
weft
d)
yarn
36.
What is this weave pattern?
a)
Satin
b)
Basket
c)
Leno
d)
Plain
37.

When fibers are transferred directly from victim to suspect or suspect to victim, this is called:

a)

necessary transfer.

b)

absolute transfer.

c)

direct transfer.

d)

None of these choices.

38.

Fibers are woven into textiles or fabrics.

a)

True

b)

False

39.

Fibers are classified as either:

a)

natural fibers or synthetic fibers.

b)

polymers or synthetic fibers.

c)

acrylic fibers or plant fibers.

d)

olefins or synthetic fibers.

40.

The transfer of evidence such as a fiber from a source to a person, then to another person, is called:

a)

primary transfer.

b)

secondary transfer.

c)

tertiary transfer.

d)

direct transfer.

41.

Fiber evidence is gathered with:

a)

vacuums.

b)

tape.

c)

glue.

d)

forceps.

e)

lint roller.

42.

The number of threads that are packed together for any given amount of fabric is known as ___________.

a)

abaca

b)

linen

c)

thread count

d)

satin

e)

tabby

43.

Hemp is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

44.

Polyester is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

45.

This weave pictured is

a)

Satin

b)

Plain

c)

Twill

46.

This weave pictured is

a)

Satin

b)

Plain

c)

Twill

47.
A fiber made from goat hair is called...
a)
Cashmere
b)
Sisal
c)
Coir
d)
Angora
48.
A fiber made from rabbit hair is called...
a)
Cashmere
b)
Sisal
c)
Silk
d)
Angora

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