Deck 8: Ballistics

Question 1

Which description best describes Jenkin's daughter?

A) name is Cheyenne
B) attends UCLA
C) about the same age as Chang
D) none of the above
E) choice 'a', 'b' & 'c' are correct

Answer 1

E

Question 2

As the two of them were having lunch at "The Pot Sticker" restaurant, Jenkins remarked "Where do you put it all Miss Chang?" Chang's response was…..

A) fast metabolism along with taking a aerobics class
B) fast metabolism along with taking a spin class
C) fast metabolism along with taking a cross fit training class
D) fast metabolism along with taking a kick boxing class
E) fast metabolism along with taking a weight lifting class

Answer 2

D

Question 3

Jenkins was having difficulty eating his food. What was the reason?

A) not that skilled at using chopsticks
B) was not a fan of spicy food
C) was turned off by the sight of seeing a fish head on the plate
D) had a big breakfast prior to this lunch time meal
E) was worried about not finding the whereabouts of Erica

Answer 3

A

Question 4

What is The Nuts and Bolts of It?

A) A hardware store
B) A favorite restaurant that Jenkins like to frequent
C) Mechanic's garage where Erica worked
D) A used car dealership
E) A junkyard

Question 5

Helen pondered over her social life and reasoned she would never find the "right guy." What was her rationale?

A) most guys don't go for smart girls
B) had an unpleasant relationship with her prior boyfriend
C) guys would not be attracted to someone that studies DNA
D) choice 'a' & 'b' are correct
E) choice 'a' & 'c' are correct

Question 6

What was the purpose of visiting The Nuts and Bolts of It?

A) to see what type of auto service the business provides
B) to interview the employees about Erica
C) to determine how long Erica worked that day
D) Choice 'b' & 'c'
E) Choice 'a' & 'c'

Question 7

According to the receptionist at the auto shop…

A) Erica never reported to work
B) Erica was at work at least until 5 pm that day
C) Erica worked only in the morning and checked out at noon
D) Erica worked checked into work late that morning
E) Erica worked all morning then never returned after lunch

Question 8

What did Jenkins discover at the auto shop?

A) latent fingerprints on a tool box
B) spent bullet under a bench
C) spent shell casing
D) firearm in the receptionist's office
E) blood spatter in the bathroom

Question 9

What is the significance of finding this firearms evidence at Erica's workplace?

A) doesn't play any significance to the case
B) might be a match back to Samdeep's firearm
C) indicates that Erica was shot while at the garage that day
D) proves that Samdeep used the firearm on Erica
E) indicates one of the workers at the auto shop shot Erica

Question 10

The gun found in Sam's truck was registered to….?

A) Sam O'Neill
B) Sara Dawood
C) Dwayne Holmes
D) Chuck Beamer
E) Gun was not registered

Question 11

As they drove away from the garage, Jenkins was instructing Chang on something she was not comfortable with….

A) using his gun to explain it operates
B) teaching her how to interrogate a suspect
C) how to drive a vehicle in traffic
D) how to drive a manual transmission vehicle
E) showing her how to put bullets in the chamber of his firearm

Question 12

(a) What is the central idea in this chapter and (b) what significance role might this piece of evidence play in this missing persons case?

Question 13

A spent shell casing or spent bullet…

A) can provide information about the type of firearm used at a crime scene
B) can be compared using a reference bullet fired from the same weapon
C) can be potentially traced back to the firearm from which it originated from
D) none of the above
E) choice 'a', 'b', 'c' are correct

Question 14

The function of rifling marks manufactured into the barrel of a firearm is to impart…..

A) more speed to the bullet
B) spin when the bullet leaves the barrel
C) linear momentum to the bullet
D) a chemical explosion to propel it forward
E) none of the above

Question 15

Which forensic tool is used to identify a spent bullet/shell casing to a weapon?

A) Transmission electron microscope
B) Scanning electron microscope
C) Polarizing microscope
D) Comparison microscope
E) Stereomicroscope

Question 16

In order to create a reference bullet the weapon is shot into a

A) a mound of dirt
B) a piece of wood
C) cement block
D) a Kevlar jacket
E) a water tank

Question 17

Which of the following terms are markings that can be measured or observed off of a spent bullet and/or shell casing?

A) lands & grooves, direct of the twist
B) caliber
C) striations
D) firing pin impression and breech face markings
E) All of the above

Question 18

Which describes the sequence of events when a firearm is discharged? 1) primer ignites the gunpowder
2) gunpowder explodes
3) Firing pin impacts primer cup
4) bullet moves down the gun barrel
5) bullet is expelled from the shell casing

A) 1,2,3,4,5
B) 5,4,3,2,1
C) 3,1,2,5,4
D) 5,4,1,2,3
E) 3,5,4,2,1

Question 19

Spent shell casing found at a crime scene might be able to provide

A) where assailant was standing
B) where the assailant was facing
C) type of weapon used at the crime scene
D) choice 'a', 'b', & 'c' are correct
E) choice 'a' & 'c' are correct

Question 20

Explain how the process of identifying a spent bullet and a spent shell casing are similar and different.

Question 21

If you stand a bullet up on its base and view the lands and grooves from the side, and the direction of the lands/grooves slant to the right this is a right-hand twist bullet. With a right-hand twist which direction will the bullet rotate in space?

A) clockwise
B) counterclockwise
C) clockwise while in the barrel, counterclockwise when leaving the barrel
D) counter clockwise while in the barrel, clockwise when leaving the barrel
E) cannot be determined

Question 22

If you stand a bullet up on its base and view the lands and grooves from the side, and the direction of the lands/grooves slant to the left this is a left-hand twist bullet. With a left-hand twist which direction will the bullet rotate in space?

A) clockwise
B) counterclockwise
C) clockwise while in the barrel, counterclockwise when leaving the barrel
D) counter clockwise while in the barrel, clockwise when leaving the barrel
E) cannot be determined

Question 23

A bullet has a marking on the shell casing that id embossed with the number 22 caliber. What does this mean?

A) diameter of the bullet 22 mm.
B) diameter of the bullet is 22 inches
C) diameter of the bullet is 0.22 inches
D) diameter of the bullet is 2.2 mm
E) diameter of the bullet is 2.2 inches

Question 24

What does the phrase 44 magnum mean?

A) refers to the maximum length of the weapon
B) refers to the width of the firearm
C) refers to the number of lands/grooves
D) refers to the diameter of the bullet.
E) all of the above

Question 25

An instrument used to measure dimensions of a bullet or shell casing is

A) a comparison microscope
B) a compound microscope
C) a compass
D) a protractor
E) a caliper

Question 26

You are a firearms expert asked to process a spent bullet, shell casing, and a firearm recovered from a crime scene. Describe the procedure and instruments you would use to determine if the three items are connected to each other.