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Forensics Pretest

Total questions: 101

Worksheet time: 1hrs 13mins

Name
Class
Date
1.
Identify the pattern
a)
high velocity
b)
splash
c)
void
d)
low impact angle
2.
From what angle was this blood most likely dropped?
a)
90°
b)
70°
c)
30°
d)
10°
3.
Which one of these was dropped from the biggest angle?
a)
1 (top left)
b)
4 (top right)
c)
7 (bottom left)
d)
9 (bottom right)
4.
What pattern of blood spatter is this?
a)
arterial gushes
b)
splash
c)
smear
d)
pool
5.
How does the velocity of impact change the blood stain pattern?
a)
Higher velocity, larger diameter
b)
higher velocity, smaller diameter
c)
lower velocity, smaller diameter
d)
Medium velocity, small diameter
6.
What blood spatter pattern is seen in the picture?
a)
Transfer/Contact
b)
Swipe
c)
Wipe
d)
Saturation
7.
What blood spatter pattern is seen in the photo?
a)
Wipe
b)
Swipe
c)
Walking Drip
d)
Flow
8.
What blood spatter pattern is seen in the picture?
a)
Low Velocity
b)
Cast-Off
c)
Arterial Spurting
d)
Medium Velocity
9.
What bloodstain pattern is created when blood is released or thrown from a blood-bearing object?
a)
Cast-Off
b)
Walking Drip
c)
Medium Velocity
d)
Void
10.
What blood spatter pattern is seen in the photo?
a)
Low Velocity
b)
Expirated Blood
c)
High Velocity
d)
Medium Velocity
11.
What type of blood spatter is typically created from a gunshot?
a)
Medium Velocity
b)
High Velocity
c)
Cast-Off
d)
Void
12.
The following drops can tell you:
a)
direction 
b)
low impact angle
c)
tails
d)
all of these
13.
The following indicates:
a)
cast off
b)
walking drip
c)
splash
d)
medium velocity impact 
14.
The protrusions around and connected to the drops are called
a)
radial lines
b)
spines or spikes
c)
blood edges
d)
satellite spatters
15.
Can blood spatter evidence be presented in a courtroom?
a)
Yes, but it is circumstantial evidence
b)
No, you can only use it to help prove other theroies
c)
Yes, It is evidence that can stand alone in court and win the case
d)
No, Blood spatter isn't evidence
16.

What type of pattern is created when blood is blown out of the nose, mouth, or a wound as a result of air pressure?

a)

Expirated blood pattern

b)

Cast - Off Pattern

c)

High Velocity Pattern

d)

Wipe Pattern

17.

The small drops of blood that are around a drop or bool of blood as a result of the blood hitting a surface are called:

a)

Spines

b)

Swipe

c)

Satellite spatter

d)

Drip Drops

18.

The lines in the picture are illustrate the points/lines of ___.

a)

convergence

b)

agreement

c)

tangents

d)

credit

19.
What would cause medium velocity blood spatter?
a)
Baseball bat
b)
Human hand
c)
Hand grenade
d)
Gunshot
20.
What is the formula for calculating angle of impact?
a)
Sin(minor/major)
b)
Sin(major/minor)
c)
Sin-1(minor/major)
d)
Sin-1(major/minor)
21.

The arrow is pointing to a

a)

satellite

b)

spine

c)

parent drop

22.

As the height of a vertical drop increases we would expect to see

a)

The diameter increase and fewer spines and satellites

b)

The diameter decrease and fewer spines and satellites

c)

The diameter increase and more spines and satellites

d)

The diameter decrease and more spines and satellites

23.

As the height of a vertical drop increases we would expect to see

a)

The diameter increase and fewer spines and satellites

b)

The diameter decrease and fewer spines and satellites

c)

The diameter increase and more spines and satellites

d)

The diameter decrease and more spines and satellites

24.

The correct reading would be

a)

18.5 cm

b)

18.5 mm

c)

19.5 cm

d)

19.5 mm

25.

What are the ridged, bumpy edges seen on this passive blood drop?

a)

satellite

b)

scallop

c)

spine

d)

parents drop

26.

What blood spatter pattern is seen in the picture?

a)

Medium Velocity

b)

Expirated Blood

c)

Low Velocity

d)

Arterial Spurt

27.
Mike has type O+ blood. Mike is a Universal Recipient.
a)
True
b)
False
28.
Mike has type O+ blood. Mike can donate blood to someone who is type AB-.
a)
True
b)
False
29.
Mike has type O+ blood. Mike can receive blood from someone who has Type A or Type B.
a)
True
b)
False
30.
Someone with type A blood can receive blood from someone who is type AB.
a)
True
b)
False
31.
Jim has type AB+ blood. His dad could be type O+.
a)
True
b)
False
32.
Mike has type O+ blood. Mike has A,B and Rh antibodies.
a)
True
b)
False
33.
Someone who is B+ has A and Rh antibodies.
a)
True
b)
False
34.

A- blood donated to a person with AB+ blood would result in rejection.

a)

True

b)

False

35.
Which of the following statements is true regarding the ABO blood system?
a)
People who have the A antigen normally would not produce the anti-A antibody.
b)
People who are type AB normally produce both anti-A and anti-B antibodies.
c)
The only ABO type blood that normally does not have either A or B antigens is AB.
36.
The rH factor determines what part of the blood type?
a)
+ or -
b)
the number of antigens
c)
the number of antibodies
d)
aggulation
37.
Universal blood donors have type ______ blood.
a)
A
b)
AB
c)
B
d)
O
38.
An individual's blood type is determined by
a)
environment
b)
genetics
c)
both environment and genetics
d)
your children's blood type
39.
If one of your parents is blood type A and the other is type B, which of the following blood types would you likely be?
a)
O
b)
AB
c)
A or B
d)
Any
40.
Someone who has Type O blood has what for antibodies (clumping proteins)?
a)
No antibodies
b)
A antibodies
c)
B antibodies
d)
A and B antibodies
41.
What antigens are present in a person with type B- blood?
a)
B, only
b)
B and Rh
c)
A and Rh
d)
A, only
42.
Negative blood types can DONATE to what types of blood?
a)
Negative, only
b)
Positive, only
c)
Both Negative and Positive
43.
Positive blood types can DONATE to what type(s) of blood?
a)
Negative, only
b)
Positive, only
c)
Both Positive and Negative
44.
Proteins on the surface of the red blood cells that account for blood type
a)
antibodies
b)
antigens
c)
agglutination
d)
anti browns offense
45.
In the serum of the blood and react with the antigen on the red blood cell
a)
antibodies
b)
antigens
c)
agglutination
d)
still anti browns
46.
This makes the ABO blood types double in amount because this creates + and - of each type
a)
Rh factor
b)
pH factor
c)
ABS factor
d)
browns factor very little 
47.
Genes are 
a)
DNA section that code for protein
b)
different forms of the same allele
c)
in the red blood cell responsible for clotting
48.
Alleles are
a)
variations of a gene
b)
code for DNA
c)
responsible for fighting infection in red blood cell
49.
Genotype 
a)
what one sees as a physical trait
b)
the genetic code on the chromosomes
c)
someone on Jersey Shore
50.
the genotype for O blood is a great example of a 
a)
recessive genotype
b)
dominant genotype
51.

Momma is IAi and Dad is IBIB - what blood types are possible?

a)

A, B, and AB

b)

AB and A

c)

AB and B

d)

Just B

52.

What percentage of the genotype IAi is possible if Mom is IAi and Dad is IAi?

a)

100%

b)

75%

c)

50%

d)

25%

53.
These carry blood to the heart:
a)
arteries
b)
veins
c)
capillaries
d)
arterioles
54.
These carry blood away from the heart
a)
arteries
b)
veins
c)
venules
d)
capillaries
55.
These have muscular walls:
a)
capillaries
b)
veins
c)
venules
d)
arteries
56.
These have valves that prevent backflow of blood
a)
arteries
b)
veins
c)
arterioles
d)
capillaries
57.
Gas, nutrient, and waste exchange occur between the __________ and the tissues of the body. 
a)
veins
b)
arteries
c)
capillaries
d)
legs
58.
What type of fingerprint is shown in the diagram below?
a)
Plain arch
b)
Plain whorl
c)
Central Pocket whorl
d)
Double Loop whorl
59.
The area indicated by "B" in the diagram is known as a(n)
a)
Core
b)
Delta
c)
Whorl
d)
Arch
60.
What type of whorl is shown?
a)
Plain
b)
Central Pocket
c)
Double Loop
d)
Accidental
61.
What pattern is this?
a)
Loop
b)
Arch
c)
Whorl
62.
What pattern is this?
a)
Loop
b)
Arch
c)
Whorl
63.
What pattern is this?
a)
Loop
b)
Arch
c)
Whorl
64.
What pattern is this?
a)
Tented Arch
b)
Arch
c)
Loop
d)
Whorl
65.
What pattern is this?
a)
Whorl
b)
Central Pocket Whorl
Arch
c)
Double Loop Whorl
d)
Accidental
66.
How many fingerprints would you have if you inked 150 and recorded their prints on FBI ten cards?
a)
150
b)
1,500
c)
15,000
67.
When are fingerprints formed?
a)
When you are a teenager
b)
During fetal development
c)
By the time you are two years old
d)
At birth
68.
A fingerprint is considered individual evidence.
a)
False
b)
True
69.
What is the function of the ridges on our fingers which create fingerprints?
a)
They provide insulation for the tissues under the skin.
b)
They enable us to grasp objects.
c)
They provide protection for our touch receptors.
70.
What causes fingerprints to be left behind when we touch things?
a)
the dust on the things we touch
b)
the smoothness of the surfaces we touch
c)
the natural oils on skin
d)
the moisture in the atmosphere
71.
Which of the following is NOT one of the three basic types of fingerprint patterns?
a)
loops
b)
spirals
c)
whorls
d)
arches
72.
Fingerprint type?
a)
Arch
b)
Loop
c)
Whorl
73.
Fingerprint type?
a)
Arch
b)
Loop
c)
Whorl
74.
Fingerprints cannot be changed during a person's life.
a)
True
b)
False
75.
Identical twins have different fingerprints.
a)
True
b)
False
76.

Which of the following can alter the print itself?

a)

permanent scars

b)

skin diseases

c)

diet

d)

weather

77.

Which of the following describes the study of bullets and firearms?

a)

Trajectory

b)

Ballistics

c)

Rifling

d)

Criminal justice

78.

Which of the following is referred to as the arrangement of spiral grooves on the inside of a barrel

a)

Shotgun interior

b)

Grooving

c)

Rifling

d)

Interior ballistics

79.

Which of the following types of firearms holds bullets in a revolving cylinder?

a)

Shotgun

b)

Pistol

c)

Rifle

d)

Revolver

80.

Which of the following strikes the primer to create an ignition?

a)

Trigger

b)

Firing pin

c)

Cartridge

d)

Breech face

81.

Which of the following best defines class characteristics?

a)

Pattern of grooves in the barrel

b)

Ejector markings

c)

Firing pin impressions

d)

Striation markings

82.
Firearms came from the invention of gun powder from where?
a)
England 
b)
China 
c)
General 
d)
USA
83.
Which of these is not a type of firearm
a)
Handgun
b)
Rifle 
c)
Shotgun
d)
Slingshot 
84.
True or False: Ballistics has both class and individual evidence?
a)
True 
b)
False
85.
Why was rifling added to the barrels of guns?
a)
To make bullets shoot straighter
b)
To make bullets traceable at crime scenes
c)
To make bullets go faster
d)
To cause bullets to separate from the cartridge
86.
What is the name of the pictured breech mark pattern?
a)
Verticle
b)
Mottled
c)
Sandblasted
d)
Rim Dent
87.
In the picture, which side of the hand is the exit wound?
a)
Top of hand
b)
Palm
c)
Impossible to tell
88.
What caused the bullet to move from the chamber into the barrel?
a)
Pressure from the expanding gun powder
b)
Firing pin pushes it down the barrel
c)
The trigger manually moves the bullet into the barrel
d)
Pressure from the ignited primer powder
89.

Breechblock marks are produced as the cartridge casing moves

a)

forward and strikes the barrel

b)

forward and strikes the breechblock

c)

backward and strikes the breechblock

d)

backward and strikes the muzzle

90.

The long, metal tube that guides a projectile out of a firearm is the

a)

breech

b)

barrel

c)

muzzle

d)

stock

91.

Rifles fire bullets, while shotguns can fire

a)

either small, round pellets or single projectile called a slug

b)

either small, round pellets or shot

c)

only small, round pellets

d)

only a slug

92.
What do we refer to the size of a bullet as?
a)
Caliber or Gauge
b)
Radius or Diameter
c)
Groves and Lands
d)
Bore and Rifiling
93.
Where are lands and grooves found?
a)
inside the barrel of a firearm
b)
negative impressions on a bullet
c)
both of these places
d)
neither of these places
94.
What is the primary determining factor of the caliber of a bullet?
a)
weight
b)
length
c)
diameter
d)
mass
95.
Where are extractor and ejector marks found?
a)
on the bullet
b)
on the cartridge
c)
 both of these places
d)
neither of these places
96.

What kind of gun is this?

a)

Rifle

b)

Shotgun

c)

Revolver

97.

What kind of gun is this?

a)

Rifle

b)

Shotgun

c)

Revolver

98.

What kind of gun is this?

a)

Rifle

b)

Shotgun

c)

Revolver

99.
What tells you that this bullet has been fired?
a)
the shape
b)
the striations
c)
the type of material
d)
the shine
100.
What is #4 pointing to?
a)
Cartridge Case
b)
Firing Pin
c)
Bullet
d)
Gun Powder
101.

What is #7 pointing to?

a)

Cartridge Case

b)

Firing Pin

c)

Bullet

d)

Gun Powder

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