Quiz about Ballistics Test Review

Question 1

When ignited, gunpowder expands to __ times its original size

Accepted Answer

6

Answer

2

Answer

4

Answer

10

Question 2

Who first invented gunpowder?

Accepted Answer

Chinese

Answer

Americans

Answer

British

Answer

Germans

Question 3

Why was rifling added to the barrels of guns?

Accepted Answer

To make bullets shoot straighter

Answer

To make bullets traceable at crime scenes

Answer

To make bullets go faster

Answer

To cause bullets to separate from the cartridge

Question 4

What was the earliest form of firearms?

Accepted Answer

Matchlock

Answer

Lever action

Answer

Breechblock

Answer

Bolt action

Question 5

Where are breech marks left?

Accepted Answer

On the bottom of the cartridge

Answer

On the top of the cartridge

Answer

On the top of the bullet

Answer

On the bottom of the bullet

Question 6

What is the name of the pictured breech mark pattern?

Accepted Answer

Verticle

Answer

Mottled

Answer

Sandblasted

Answer

Rim Dent

Question 7

What is the name of the pictured breech mark pattern?

Accepted Answer

Mottled

Answer

Verticle

Answer

Sandblasted

Answer

Mouse Ears

Question 8

What is the best description of caliber?

Accepted Answer

The diameter of the cartridge

Answer

The length of the cartridge

Answer

The diameter of the bullet

Answer

The length of the bullet

Question 9

In the picture, which side of the hand is the exit wound?

Accepted Answer

Palm

Answer

Top of hand

Answer

Impossible to tell

Question 10

Which of the following is an individual characteristic of cartridge cases?

Accepted Answer

Ejector Marks

Answer

Manufacturer

Answer

Composition

Answer

Caliber

Question 11

Identify the extraction pattern pictured.

Accepted Answer

"Thin" Chamber Marks

Answer

"Dirt Flow" Chamber Marks

Answer

Spiral

Answer

Curved

Question 12

Identify the extraction pattern pictured.

Accepted Answer

Diagonal

Answer

Spiral

Answer

Curved

Answer

Light Ramp Bulge

Question 13

What is #2 pointing to?

Accepted Answer

Primer

Answer

Firing Pin

Answer

Flash Hole

Answer

Gun Powder

Question 14

What is #4 pointing to?

Accepted Answer

Cartridge Case

Answer

Firing Pin

Answer

Bullet

Answer

Gun Powder

Question 15

A bullet has an angle of entry of 15 degrees and the distance to the shooter is believed to be 58 ft away.  The bullet wound was 5 feet above the ground.  What is the height of the shooter above the horizon?

Accepted Answer

21 ft

Answer

5 ft

Answer

16 ft

Answer

45 ft

Question 16

What caused the bullet to move from the chamber into the barrel?

Accepted Answer

Pressure from the expanding gun powder

Answer

Firing pin pushes it down the barrel

Answer

The trigger manually moves the bullet into the barrel

Answer

Pressure from the ignited primer powder

Question 17

Why is rifling important for forensic ballistic analysis?

Accepted Answer

It makes indentations on the bullet that are unique to the firearm.

Answer

It spins the bullet, making it more accurate.

Answer

It makes the bullet travel farther before losing accuracy/

Answer

It can be found in all firearms.

Question 18

Which of these are NOT types of individual evidence found on parts of a cartridge?

Accepted Answer

Manufacturer's stamp

Answer

Breech marks

Answer

Firing pin impression

Answer

Rifling patterns

Question 19

Where do we find the firing pin inpression?

Accepted Answer

On the back of the casing

Answer

On the back of the bullet

Answer

On the side of the casing

Answer

On the side of the bullet

Question 20

The study of bullets and firearms is called

Accepted Answer

Ballistics

Answer

serology

Answer

DNA Technology

Answer

Firearms

Question 21

Define Striations

Accepted Answer

scratch marks left on the projectile by rifling lines of the inside of the barrel

Answer

marks made as the cartridge is removed from the chamber

Answer

marking from a firing pin on the cartridge

Answer

Marks or scratches made when the cartridge is placed into the chamber

Question 22

Place the steps of a firearm in order from beginning to end

1) The pressure of the ignition pushes the bullet from the casing and into the barrel of the firearm

2) The bullet follows the lands and groves pattern of the barrel and spirals out of the barrel

3) The trigger is pulled and firing pin from the firearm hits the base of the cartridge, igniting the powder inside the bullet

Accepted Answer

3,1,2

Answer

1,2,3

Answer

3,2,1

Answer

2,1,3

Question 23

Which of the following can be solved from analyzing Gun Shot Residue?

Accepted Answer

The distance between the weapon and the victim

Answer

the type of gun the bullet came from

Answer

the type of bullet the gun shot

Answer

The time the gun was shot

Question 24

This individual murdered his wife and 3 kids in 2007 in Illinois

Accepted Answer

Christopher Vaugn

Answer

Beltway Snipers

Answer

John Orner

Answer

JCK

Question 25

Which of the following is not a part of ballistics?

Accepted Answer

Slingshot

Answer

Shotgun

Answer

Revolver

Answer

Pistol

Question 26

What effect does an increased speed have on the distance a projectile travels

Accepted Answer

increased speed increases distance

Answer

it has no effect on distance

Answer

increased speed decreases distance

Answer

decreased speed increases distance

Question 27

What effect does increased height have on distance a projectile travelled?

Accepted Answer

increased height, increased distance

Answer

increased height, decreased distance

Answer

It has no effect on distance travelled

Answer

decreased height, increased distance.

Question 28

What makes a sniper weapon different from others who use firearms as murder weapons?

Accepted Answer

snipers shoot from far away places so they can hide, but are still very accurate

Answer

snipers shoot from close places to get more accurate aim

Answer

snipers shoot from close places and are less accurate in their aim

Answer

snipers shoot from far away places so they can hide, and are rarely accurate.

Question 29

What is happening to the bullet in the picture:

Accepted Answer

Mushrooming

Answer

Striations

Answer

Extractor Marks

Answer

Ejector Marks

Question 30

Sample X was found in a parking lot of a club shooting. Samples A1 - A4 are examplar shootings collected from suspect weapons. Which gun most likely fired the bullet found at a crime scene?

Accepted Answer

A3

Answer

A1

Answer

A2

Answer

A4

Question 31

Which term accurately describes the part of the gun labeled F

Accepted Answer

Trigger

Answer

Gun Barrel

Answer

Trigger Guard

Answer

Action

Question 32

How are automatic weapons distinguishable from semi-automatic weapons?

Accepted Answer

Automatic Weapons fire repeatedly as long as trigger is pressed, while semiautomatic weapons fire one bullet per pull of the trigger

Answer

Semi-automatic Weapons fire repeatedly as long as trigger is pressed, while automatic weapons fire oen bullet per pull of the trigger

Answer

Both semi-automatic and automatic weapons fire repeatedly as long as the trigger is pressed

Answer

Both semi-automatic and automatic weapons only fire one bullet per pull of the trigger

Question 33

A forensics investigator collected the following notes from a witness describing the murder weapon of a nearby shooting:

- the shooter was holding a gun

- the shooter was wearing a black shirt and jeans

- the shooter was able to shoot their gun with just one hand

- the shooter only pulled the trigger once, but multiple shots were fired

- the shooter was tall, maybe 6 feet, and could run very fast.

Which of the following describes the gun that the shooter was probably holding?

Accepted Answer

Hand gun, probably automatic

Answer

Long gun, probably a shotgun

Answer

Hand gun, probably semi-automatic

Answer

Long gun, probably a rifle

Question 34

What was the biggest difference between bullets used now and bullets used in the early start of guns?

Accepted Answer

Early guns used lead ball bullets

Answer

early guns used lead cylindrical bullets

Answer

early guns used aluminium bullets

Answer

early guns used the same bullets we use today

Question 35

Why was rifling added to the barrels of guns?

Accepted Answer

To make bullets shoot straighter

Answer

To make bullets traceable at crime scenes

Answer

To make bullets go faster

Answer

To cause bullets to separate from the cartridge

Question 36

Where are breech marks left at?

Accepted Answer

on the bottom of the cartridge

Answer

on the top of the cartridge

Answer

on the top of the bullet

Answer

on the bottom of the bullet

Question 37

What is the best description of the caliber?

Accepted Answer

the diameter of the cartridge

Answer

the length of the cartridge

Answer

the diameter of the bullet

Answer

the length of the bullet

Question 38

What caused the bullet to move from the chamber into the barrel?

Accepted Answer

Pressure from the expanding gun powder

Answer

The trigger manually moves the bullet into the barrel

Answer

Firing pin pushes it down the barrel

Answer

Pressure from the ignited primer powder

Question 39

Why is rifling important for forensic ballistic analysis?

Accepted Answer

It makes indentations on the bullet that are unique to the firearm.

Answer

It spins the bullet, making it more accurate.

Answer

It can be found in all firearms.

Answer

It makes the bullet travel farther before losing accuracy/

Question 40

Which of the following is a type of individual evidence from firearms?

Accepted Answer

Striations

Answer

manufacturer

Answer

Direction of twist

Answer

caliber

Question 41

Where do we find the firing pin impression?

Accepted Answer

on the back of the casing

Answer

on the back of the bullet

Answer

on the side of the casing

Answer

on the side of the bullet

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