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Fiber Practice

Total questions: 25

Worksheet time: 17mins

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.
Fibers are considered what kind of evidence? 
a)
Individual
b)
Class
c)
Direct
d)
Indirect
6.

Which of the following is NOT a natural fiber?

a)

Linen

b)

Bamboo

c)

Wool

d)

Nylon

7.

The most commonly used synthetic fiber:

a)

Rayon

b)

Polyester

c)

Nylon

8.
The name for man-made fibers is:
a)
processed fibers
b)
synthetic fibers
c)
natural fibers
d)
modified fibers
9.
Fibers that have spun together are called
a)
a textile
b)
yarn
c)
a mineral fiber
d)
a fiber
10.
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.
11.
A lengthwise yarn or thread in a weave
a)
polymer
b)
warp
c)
weft
d)
yarn
12.

What is the source of Linen?

a)

plant seed

b)

flax stem

c)

plant leaves

d)

sheep

13.

The source of manilla is

a)

seed

b)

abaca plant

c)

mineral

d)

sheep

14.

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

15.
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)
16.

The most prevalent plant fiber is:

a)

Hemp

b)

Cotton

c)

Mohair

d)

Wool

17.

Fiberglass is a fiber form of:

a)

proteins.

b)

cellulose.

c)

mineral.

d)

polymers.

18.

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

19.

a flexible, flat material made by interlacing yarns.

a)

yarn

b)

textile

c)

filaments

d)

fibers

20.

What type of fiber is shown?

a)

Silk

b)

Cotton

c)

Nylon

21.

Hemp is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

22.

Acrylic is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

23.

Wool is

a)

A synthetic fiber

b)

A natural fiber

c)

An artificial fiber

24.
Asbestos is a ___ fiber and comes from a ___.
a)
synthetic; mineral
b)
natural; mineral
c)
synthetic; plastic
d)
natural; plant
25.

Early collection of fibers in an investigation is critical. Within 24 hours, an estimated ____ percent of all fibers may have fallen from a victim or been lost from a crime scene.

a)

65

b)

75

c)

85

d)

95

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