Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 1. | All
of the cartridges below are in the 22 caliber “family except: a. | 22
Magnum | b. | 22 Short | c. | 22
Mono | d. | 22
Long | e. | 22 Long
Rifle | | |
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| 2. | Firearm Examiners validate the unique characteristics being produced by a firearm by
examining these first. a. | Imperfections | b. | Breech
marks | c. | Rifling | d. | Cannelure | e. | Fired standards | | |
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| 3. | 16-Right rifling is also called _______-groove rifling. a. | Mini | b. | Multi | c. | Polygonal | d. | Small | e. | Micro | | |
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| 4. | Which
of the following is not an internal safety? a. | Thumb | b. | Firing pin
disconnect | c. | Transfer bar | d. | Drop | e. | Hammer block | | |
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| 5. | Hammer forged rifling usually produces this type of rifling. a. | Conventional | b. | Broach | c. | Polygonal | d. | Button | e. | English | | |
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| 6. | Which
of the following is NOT an impressed action mark? a. | Firing pin drag marks | c. | Ejector marks | b. | Concentric
breech marks | d. | Firing pin
impression | | | | |
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| 7. | Intentional or design characteristics that would be common to a particular group or
family of items are: a. | Individual characteristics | b. | Class
characteristics | c. | Striations | d. | Toolmarks | e. | Impressed marks | | |
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| 8. | A
cartridge is a single unit of ammunition consisting of: a. | Cartridge case,
wadding, pellets and primer | b. | The cartridge case, primer, and propellant with or without one
or more projectiles | c. | The cartridge case, primer, and one or more
projectiles | d. | The primer, cartridge case, and
bullet | e. | The shell, wadding, pellets, and slug | | |
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| 9. | Grooves cut or formed in a spiral nature lengthwise down the barrel of a
firearm. a. | Lines | b. | Rifling | c. | Striation | d. | All apply | e. | Forged
marks | | |
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| 10. | Firearms identification is actually a form of _______________ where the firearm,
because it is made of a material harder than the ammunition components, acts as a tool to leave
impressed or striated marks on the various ammunition components that come into contact with the
firearm. a. | Toolmark
identification | b. | Forensic science | c. | Tool and
die | d. | Physics | e. | Ballistic identification | | |
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| 11. | Which
of the following is NOT a manual safety? a. | Internal firing pin block | b. | Thumb | c. | Half cock | d. | Safety
button | e. | Cross-bolt | | |
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| 12. | Which
of the following is NOT a striated action mark? a. | Phantom marks | b. | Chamber
marks | c. | Firing pin drag marks | d. | Shear
marks | e. | Concentric breech marks | | |
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| 13. | A
___________________ is allowed to express an opinion about the validity of the evidence in a case and
may quote the statements of others in support of an opinion. a. | Eye
witness | b. | Expert witness | c. | Public
defender | d. | Attorney | e. | Lay
person | | |
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| 14. | Firearm Examiners commonly use this to collect fired standards from
firearms. a. | Suction | b. | Bullet stop | c. | Water
tank | d. | Sand | e. | Phone books | | |
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| 15. | ________ ________ taken from the recovered bullets can be used to determine the
possible manufacturers of the firearm from which the bullets were fired. a. | Trace
evidence | b. | Cannelure configuration | c. | Bullet
velocity | d. | Primary colors | e. | Rifling
parameters | | |
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| 16. | Firearm Examiners use this instrument to examine bullets and cartridge cases for
similar marks. a. | Hand-held
loupe | b. | Scanning electron microscope (SEM) | c. | Bore
scope | d. | Stereo microscope | e. | Comparison
macroscope | | |
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| 17. | In
the process that eliminates the conventional machining of metal, rifling is formed by wet-etching the
interior of a barrel under an electric current. The metal inside the barrel is actually eaten away or
dissolved to create grooves in the barrel. a. | Electro-machined rifling | b. | Broach current
cut | c. | Electrochemical
rifling | d. | Hammer forged rifling | e. | The
clapper | | |
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| 18. | These
action marks are created on a cartridge case when it impacts the tool (firearm) and no lateral
movement occurs. a. | Striated | b. | Impressed | c. | Shiny | d. | Scratch | e. | Colored | | |
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| 19. | Polygonal rifling has the appearance of ___________________. a. | Bumps and
dents | b. | Lands and grooves | c. | Hills and
valleys | d. | Creases and wrinkles | e. | Lines and
curves | | |
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| 20. | Cartridges designed for use in auto loading pistols will usually have this word in
their cartridge designation: a. | Caliber | b. | Semi | c. | Auto | d. | Long | e. | S & W | | |
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| 21. | The
_______ is the distance the rifling needs to spiral down the barrel for it to complete a single
revolution. An example would 1 turn in 12 inches. a. | Lands and grooves | b. | Bore
length | c. | Rate of twist | d. | Spiral | e. | Core distance | | |
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| 22. | Most
positive bullet identifications are made on striations that are found where? a. | On the bottom of
the bullet | b. | On groove impressions near the base of the
bullet | c. | On land impressions near the base of the
bullet | d. | Near the nose of the bullet | e. | On the shoulder
of land impressions | | |
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| 23. | Firearms leave unique characteristics on the ammunition components due
to: a. | Drillings | b. | Rifling impressions | c. | Manufacturing
processes, use, and abuse | d. | Breech marks | e. | Gas pressure
within the barrel | | |
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| 24. | _____________________ are the identified rifling pattern (i.e. 8/right) and the
diameters of the individual lands and grooves. a. | Firearm parameters | b. | Ballistic
data | c. | Cartridge case
parameters | d. | General Rifling Characteristics (GRC) | e. | Bullet size and
weight | | |
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| 25. | Two
class characteristics of firearms that relate to the bullets fired from them
includes: a. | Gunpowder and
primer residues | b. | All apply | c. | Model and barrel
length | d. | Caliber and rifling pattern | e. | Striations and
impressed marks | | |
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| 26. | Imperfections in the surface of the interior of the barrel leave these marks on
bullets: a. | Contour | b. | Parallel | c. | Concentric | d. | Striations | e. | Impressions | | |
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| 27. | Firearms and ammunition of European origin use the ________ system to indicate the
size of the bullet. a. | Caliber | b. | Latin | c. | Dewey Decimal | d. | Metric | e. | English | | |
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| 28. | Cartridges designed for use in auto loading pistols will usually have this word in
their cartridge designation: a. | Caliber | b. | S &
W | c. | Semi | d. | Auto | e. | Long | | |
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| 29. | ____________________is that given by a specialist who has been recognized by the court
as having expert knowledge about evidence in the case. a. | Expert
testimony | b. | A written report | c. | A
photograph | d. | Handwriting samples | e. | Fingerprint
evidence | | |
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| 30. | If
class characteristics between an ammunition component and a firearm are in agreement the next step in
the examination process would be to look for: a. | Microscopic residues | b. | Nitrites | c. | Safety defects | d. | Radial
fractures | e. | Individual characteristics | | |
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| 31. | These
action marks are produced when the cartridge case moves laterally against the tool (inner surface of
the firearm) producing a scrape mark. a. | Round | b. | Impressed | c. | Smooth | d. | Deep | e. | Striated | | |
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| 32. | Conclusions reached in a bullet comparison will NOT include the
following. a. | Positive
ID | b. | Personal
ID | c. | Negative
ID | d. | Inconclusive
ID | e. | Negative
ID | | |
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| 33. | The
rifling pattern in the barrel that fired a particular bullet can be determined by __________ the
number of groove or land impressions around the circumference of the bullet. a. | Measuring | b. | Counting | c. | Photographing | d. | Marking | e. | Casting | | |
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| 34. | A
revolver chambered for 357 MAGNUM cartridge can also fire which cartridge.
a. | 38
Maximum | b. | 22 Long Rifle | c. | 357
Webley | d. | 38 Special | e. | 380
AUTO | | |
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| 35. | The
following is a common rifling pattern. a. | 3/Left | b. | 6/Right | c. | 5/Left | d. | 15/Right | e. | 10/Left | | |
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| 36. | The
identification of fired bullets, cartridge cases or other ammunition components as having been fired
from a specific firearm is referred to as: a. | Ammunition Identification | b. | Ballistics | c. | Forensic Ballistics | d. | Firearm
Identification | e. | Cartridge Identification | | |
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| 37. | By
holding the nose of the bullet pointing away from you, the direction the rifling impressions run
_________ from you determines the direction of twist.
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| 38. | Class
characteristics that relate to the identification of Cartridges and Cartridge cases
are: a. | Extractor mark
location | b. | Ejector mark shape | c. | All
apply | d. | Firing pin impressions | e. | Breech
marks | | |
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| 39. | The
following firearm normally does not have rifling in its barrel. a. | Derringer | b. | Shotgun | c. | Rifle | d. | Revolver | e. | Pistol | | |
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| 40. | Which
is not an examination designed to help firearm examiners arrive at a basic caliber for a submitted
bullet. a. | Measuring the
bullet’s diameter | b. | Determining the age of the bullet | c. | Measuring the
length of the bullet | d. | Weighing the bullet | e. | Examining the
physical characteristics of the bullet | | |
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| 41. | The
following is not a method of forming rifling in a barrel. a. | Button
rifling | b. | Machine cut | c. | Hammer
forged | d. | Broach cut | e. | Electrochemical | | |
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| 42. | Most
firearms have some type of _________ designed to minimize the potential for accidental
discharge. a. | Cylinder | b. | Hammer | c. | Safety | d. | Barrel | e. | Key | | |
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| 43. | Qualifications typically given by a Firearm Examiner to be considered an expert by the
courts will NOT include which of the following? a. | Years of service in the field | b. | College degrees
held | c. | Drivers license
number | d. | Specialized training received | e. | Past testimony
experience | | |
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| 44. | Rifling in the barrel of a firearm are made up of these two elements. a. | Creases and
folds | b. | Hills and mountains | c. | Lands and
grooves | d. | Lands and valleys | e. | All
apply | | |
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| 45. | Caliber is a term used to indicate the: a. | Diameter of a
bullet in mm. | b. | Direction of twist in the barrel | c. | The quality of
marks present | d. | The length of the bullet | e. | Diameter of a
bullet in hundredths of an inch | | |
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| 46. | In
addition to comparing ammunition components to firearms, firearm examiners conduct other examinations
that usually include which of the following: a. | Determine caliber and manufacturer of ammunition components.
Including the examination of various shotshell components. | b. | Examine
clothing and other items for gunshot residues and/or shot patterns in an attempt to determine a
muzzle-to-garment distance. | c. | Determine the manufacturer or manufacturers of firearms that
may have fired a particular bullet or cartridge case. | d. | Testing firearms
to determine if they function properly | e. | All of the above. | | |
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| 47. | Polygonal rifling is usually found in this brand of firearms. a. | Glock | b. | Colt | c. | Hi-Point | d. | Beretta | e. | Smith and Wesson | | |
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| 48. | Because there is a distinct edge at the transition from a land to a groove impression,
the widths of the lands and grooves can be measured in this traditional rifling
method. a. | Straight
rifling | b. | Polygonal rifling | c. | Pinched
rifling | d. | Button rifling | e. | Curved
rifling | | |
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| 49. | Tool
marks produced on cartridge cases will be in which two basic forms. a. | Inner and outer
action marks | b. | Concentric and parallel action marks | c. | Light and heavy
action marks | d. | striated and impressed action marks | e. | smooth and
coarse action marks | | |
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| 50. | As
scientists and expert witnesses (and to remain as such), it is of the utmost importance that we
maintain complete ____________ in our work. a. | Concentration | b. | Impartiality | c. | Ambiguity | d. | Partiality | e. | Functionality | | |
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