Reviewer

1. In shots fired from an automatic pistol, the shell in most cases…

a. Will be found on the scene of the crime
b. Will remain in the chamber
c. Will be rarely found in the scene of the crime
d. Will be usually disposed by the perpetrator
2. Treats of the attributes or movement of the projectile after leaving the gun muzzle. It is extended from the muzzle of the
gun to the target or any attributes to the motion of the projectile while it is in flight and before reaching the target.
a. Terminal Ballistics
b. Intermediate Ballistics
c. External Ballistics
d. Internal Ballistics
3. Refers to shotgun pellets made from lead especially hardened by the addition of a slight amount of antimony.
a. Bird Shot
b. Buck Shot
c. Chilled Shot
d. Wads
4. The bottom portion of the cartridge case contains the headstamp marking on the base of the shell containing the
caliber, manufacturer, and in some cases including the date, trade name, and batch number.
a. Rim
b. Body
c. Neck
d. Base
5. By analyzing the presence or absence of powder residue thrown out forward towards the target, the analyst can
determine muzzle to target distance. This statement is false.
a. Wholly true
b. Wholly false
c. Partially true
d. Partially false
6. The firearm examiner places his markings on the ballistics exhibits before he conducts his examination. This statement
is under what attribute of Forensic Ballistics?
a. Field Examination
b. Field Investigation
c. Technical Examination
d. Technical Investigation
7. Refers to an unregistered firearm, an obliterated or altered firearm, firearm which has
been lost or stolen, illegally manufactured firearms, registered firearms in the possession of an
individual other than the licensee and those with revoked licenses in accordance with the rules and
regulations.
a. Antique firearm
b. Illegal firearm
c. Revoked firearm
d. Loose firearm
8. Double-Based Propellant is one of the main classes of smokeless powder, it has its major ingredients and minor
ingredients. What is the purpose of its minor ingredients?
a. To ensure stability, reduce flash and improve ignitability
b. To reduce recoil, muzzle flash and accuracy
c. To reduce black smoke when fired
d. To ensure terminal accuracy and effective range of the projectile
9. Rifling in the bore of small arms is primarily designed for:
a. Increase the speed of the bullet
b. Decrease the amount of recoil
c. Increase impact damage
d. Prevent the bullet from turning end over in the air
10. It refers to the caliber of shotgun, it is a number of lead pellets or balls of the given bore
diameter required to make up one pound weight.
a. Caliber
b. Power
c. Millimeter
d. Gauge
11. Preparing the package and transfer of evidence to the crime laboratory for examination. This statement is under what
attribute of Forensic Ballistics?
a. Court Observations
b. Field Investigation
c. Legal Proceedings
d. Technical Investigation
12. The following are the classification of cartridge case according to the location of the primer, except:
a. Semi Pinfire
b. Centerfire
c. Rimfire
d. Pinfire
13. Cartridge cases of all types are made by a machine operation known as drawing; crimp is one of the parts of cartridge
case. One among two purposes of crimp is to __________________.
a. holds the bullet, gunpowder, and primer assembled into one unit
b. to support the neck of the cartridge which is evident in a bottleneck type
c. to hold the bullet and prevent it from being pulled out from the shell
d. to limit the forward movement of the cartridge to the chamber
14. Upon arrival at the crime scene, the investigator conducts a general survey of the area. This statement is under what
attribute of Forensic Ballistics?
a. Field Examination
b. Field Investigation
c. Technical Examination
d. Technical Investigation
15. The following are the unlawful acts punishable by Prison Mayor in its maximum period, EXCEPT:
a. Planting of evidence
b. Unlawful Acquisition, or Possession of a major part of a Class-B light weapon
c. Unlawful Acquisition, or Possession of Class-A light weapon
d. None of the aforementioned
16. What definition best describes the word bullet?
a. a metallic or non-metallic cylindrical ball propelled from a firearm
b. a metallic or non-metallic tabular container usually made of brass
c. a small metallic missile enclosed in a cartridge, used as the projectile of a gun
d. any object that can be discharged from a weapon, launched, or exploded
17. Refers to the parabola-like flight of the projectile from the time it leaves the muzzle until it hits the target. It is also
described as the actual curve path taken by a bullet during its flight.
a. Accurate Range
b. Effective Range
c. Trajectory
d. Range
18. The bullet is forced to come out of the barrel of the firearm at a tremendously high speed. It is due to;
a. The expansive force of gases from a burning gunpowder
b. The air that surrounds the bullet while in flight
c. The energy generated by the firearm
d. The type of firearm that makes it high powered weapon
19. A mortar is a large-caliber firearm with more than one inch diameter projectile and usually launches using explosive
chemical propellant. Firearms that propel more than one inch refers to:
a. small arms
b. machine guns
c. muskets
d. artillery

20. Tracer bullet is a type of military bullet capable of leaving visible marks or traces while in flight giving the gunner the
chance to observe the strike of the shot or make adjustments in the event of a miss. What color of fire will be produced by
this kind of bullet?
a. bright red
b. yellow
c. Bright green
d. amber
21. Which of the following statements best describes exit wounds?
a. Exit wound has inverted edge
 b. Exit wound may be absent if the slug is lodge inside the body
c. The size of exit wound is smaller than the bullet
d. Exit wound is always present if there are circumstances of penetration
22. What is the difference between a bullet and a cartridge?
a. the bullet is the projectile, while the cartridge holds the bullet, powder, and primer
b. the cartridge is the projectile, while the bullet holds the cartridge, powder, and primer
c. a bullet is larger and used more frequently than a cartridge
d. they are the same thing
23. The composition of black powder is potassium nitrate, charcoal and sulfur. How many percent of sulfur does the black
powder have?
a. 75%
b. 15%
c. 10%
d. 25%
24. When a projectile propelled by means of its expansive force of gas when burned, it refers to:
a. Gun powder
b. Propellant
c. Deflagration
d. Both A & B
25. Subject to the requirements set by RA 10591 and payment of required fees to be determined by the Chief PNP. Type
4 license allows to:
a. own and possess a minimum of fifteen registered firearms
b. own and possess a maximum of fifteen unregistered firearms
c. own and possess a minimum of fifteen registered firearms
d. own and possess a maximum of fifteen registered firearms
26. It is where the ballistics report of the firearm examiner and the ballistics exhibits such as; firearms, fired bullets, fired
cartridge cases and allied matters are presented during the test of the case in a tribunal. It also includes the presentation
of the ballistics expert’s testimony regarding his finding.
a. Legal Proceedings
b. Field Investigations
c. Technical Examinations
d. Final Judgement
27. These are cartridges designed to have two flash holes.
a. Boxer type
b. Rimmed type
c. Center type
d. Berdan type
28. In wound categories, close range is when:
a. the muzzle point is directly touching the target when the gun is fired
b. the gun is fired, the muzzle point is near closely at the target
c. there is vast range or gap between the muzzle and the target
d. the gun is fired, the muzzle is pointed meters apart from the target
29. This test uses diphenylamine or diphenylbenzidine introduced to a paraffin cast, which will turn blue if there is a
presence of nitrates.
a. Walkers Test
b. Paraffin Test
c. Marshall and Tiwari Test
d. Harrison Gilroy Test
30. It is a sub-field of ballistics that studies the motion of a projectile or bullet when it hits the target. It includes the transfer
of energy to a target and to determine the effectiveness of the impact.
a. Terminal Ballistics
b. Intermediate Ballistics
c. External Ballistics
d. Internal Ballistics
31. The following are the characteristics of a black powder, except:
a. It consists of irregular grains, which depend on the manufacturing process.
b. Have either a dull or shiny black surface.
c. When fired, it produces a large volume of grayish or white smoke and considerable residue left in the barrel. In
burning, it gives off a large amount of gas.
d. None of the aforementioned
32. Agent Mims has arrived at the crime scene of homicide looking at the cadaver with multiple gunshot wounds.
Cartridge cases are not found at the scene. As a field investigator, the best conclusion in the given situation is:
a. The culprit quickly picked up the bullet casings after shooting the victim
b. The victim sustained multiple wounds, it is possible that the firearm used was a shotgun
c. Forensic experts have already collected the cartridge cases prior to the arrival of the field investigator
d. There is a possibility that the suspect used a revolver, therefore, no cartridge case was left at the scene
33. The degree of constriction on the end portion of the shotgun barrel for the purpose of controlling the spread of the
shots/pellets after leaving the barrel. That is, the diameter near the muzzle end is slightly smaller than the diameter of the
bore of the rest of the barrel.
a. Paradox
b. Choke
c. Gauge
d. True cylinder
34. A shoulder weapon designed to fire a projectile with more accuracy through a long-rifled bore barrel, usually more
than 22 inches. It has usually a muzzle velocity of 2,500 feet per second and a range of 3,000 feet.
a. Muskets
b. Carbine
c. Revolver
d. Rifles
35. Priming compounds are divided into two classes: corrosive and non-corrosive. Corrosive Primer contains potassium
chlorate which when ignited, produces ____________.
a. nitrocellulose
b. potassium chloride
c. antimony sulfide
d. mercury
36. The following except one are the functions of the cartridge case.
a. It holds the bullet, gunpowder, and primer assembled into one unit
b. It serves as additional embellishment
c. It prevents the escape of the gases to the rear as the sidewalls of the cartridge case are forced against the
walls of the chamber by the pressure
d. It serves as a waterproof container for the gun powder
37. Which of the following statements best describes a Sawn-Off Shotgun?
a. it has a custom design and the barrel is usually shortened to conceal the action
b. the recoil action reloads the gun from the magazine without any effort on the part of the shooter
c. it has two barrels arranged either side by side or one on top of the other and each barrel may have its own trigger
d. It requires the manual insertion of the shells in the chamber by releasing some sort of catch for the gun hinges to
open at the breech allowing the cartridges to be loaded
38. The energy of the projectile is affected by three factors such as; gunpowder content, length of the barrel and
____________.
a. size of cylinder
b. additional force imparted by the air
c. type of primer commonly centerfire
d. type of barrel
39. Every Tuesday, Edward with his colleagues practices proper loading of ammunition and manipulating guns in
preparation for the annual shooting fest. What type of ammunition is best suited in practice loading?
a. Drill Ammunition
b. Live Ammunition
c. Black Ammunition
d. Dummy Model
40. Refers to the part of the primer which provides solid support and absorbs the blow of the firing pin causing friction that
would initiate ignition.
a. Primer cup
b. Priming mixture
c. Anvil
d. Disc
41. Refers to a class of smokeless powder that is commonly used in artillery guns.
a. High Ignition Temperature Propellant
b. Single-Based Propellant
c. Double-Based Propellant
d. Triple-Based Propellant
42. The following are the characteristics of smokeless powder, except:
a. Relatively slow-burning with little smoke with minute residue in the barrel.
b. It is a true chemical compound
c. Smokeless powder grains have a perfectly definite shape such as; small squares, flakes, sticks, spheres,
pellets, or perforated cylindrical grains.
d. Manufactured principally from synthetic cotton which is called “SILK”
43. A blow from the firing pin to the primer is the tendency for the priming mixture to be crushed against the anvil causing
its ignition which refers to _________________.
a. Combustion
b. Percussion
c. Conflagration
d. Friction
44. Ammunition in technical definition refers to:
a. a group of cartridges or to a single cartridge
b. loaded shells for rifles, muskets, carbine, shotguns, revolvers, and pistols from which a ball, shotshell, or other
missiles may be fired by means of gun powder or another explosive
c. any object that once projected or dropped continues in motion by its own inertia and is influenced only by the
downward force of gravity
d. a metal cylindrical tube, normally made of brass but sometimes of steel
45. Which of the following questions can ballistics NOT answer?
a. What type of firearm was used?
b. What was the intention of firing a gun?
c. What was the angle of impact?
d. All of these are questions that could be answered.
46. Revolver is a type of firearm designed to place a cartridge into position for firing with the aid of a ____________
serving as its chamber.
a. rotating cylinder
b. magazine
c. elongated receiver
d. rifled barrel
47. Rebated cartridge case has an extractor flange that is __________ than the diameter of the case. A groove around
the body of the case is present in front of the flange.
a. bigger
b. equal
c. smoother
d. smaller
48. A type of photography that will usually reveal even the most minute traces of powder residue.
a. Infrared photography
b. X-ray photography
c. Ultraviolet photography
d. UV photography
49. A metallic or non-metallic tabular container usually of brass intended to bond the bullet, primer and the gunpowder into
one part.
a. Cartridge
b. Cartridge case
c. Projectile
d. Bullet
50. Which of the following statements best describes an entrance wound?
a. The size of entrance wound is bigger than the bullet
b. Entrance wound has no definite shape
c. Entrance wound is always present
d. Gunpowder tattooing are absent in contact
51. For almost three years, Joey and Jeffrey have been making various types of zip guns even though they are prohibited
by law. In case they are arrested, what penalty can they suffer?
a. Prison Mayor
b. 12 years and 1 day to 40 years
c. Reclusion Temporal
d. 20 years and 1 day to 40 years
52. Rifling works by spinning the projectile about its axis, causing gyroscopic forces that spin-stabilize it throughout its
flight; tighter rifling will spin a bullet faster, while looser rifling will spin a bullet slower. Firearms that have rifling inside their
gun barrel are called:
a. Smooth bore firearms
b. Low velocity firearms
c. High powered firearms
d. Rifled bore firearms
53. As to the firing mechanism, double Action is a type in which pressure upon the trigger both cocks and releases the
hammer. This gun can be operated both through cocking the hammer first and squeeze the trigger or
a. directly squeeze the trigger to cock the hammer
b. manually cocks the hammer to eject the cartridge case
c. directly putting the cartridge to breach
d. setting the automatic clutch switch for firing
54. Wound ballistics is the study of projectile penetration of tissues. Wounding potential of projectiles is complex matter as
it involves interplay of velocity, projectile type/composition, and tissue characteristics. With regard to this study, what is the
difference between an entry and exit wound?
a. entry wounds are smaller than exit wounds
b. exit wounds pull fibers into the body, entry wounds do not
c. exit wounds are smaller than entry wounds
d. an exit wound can have an abrasion ring

55. The study of the projectile's behavior when it leaves the barrel and the pressure behind the projectile is equalized.
a. Terminal Ballistics
b. Intermediate Ballistics
c. External Ballistics
d. Internal Ballistics
56. What does the word “forensic” mean as applied to ballistics and to any other subjects?
a. Debates between prosecution and defense
b. Relationship to court of justice and legal proceedings
c. Cross examination of the Ballistics Findings in court
d. Concluding the integrity of an Expert Witness
57. Rifling refers to the spiral grooves that are cut or swagged on the internal surface of a gun barrel, which helps impart
the spinning motion to a bullet when it's fired. A spinning bullet is found to be more stable in its trajectory, and is therefore
more accurate than a bullet that doesn't spin. Where are lands and grooves can be found?
a. inside the barrel of a firearm
b. negative impressions on a bullet
c. neither of these places
d. both of these places
58. Extracting groove is a circular groove near the rim of the shell designed ______________.
a. to limit the forward movement of the cartridge to the chamber
b. to secure the shell to the chamber as well as prevent the bullet from being push down to the powder charge
c. for automatic withdrawal of the case from the chamber
d. to hold the primer in place and to prevent the escape of gas
59. _______________ is the oldest propellant when it comes to classification of gunpowder.
a. Semi-Smokeless powder
b. Black Powder
c. Smokeless powder
d. Ancient Gunpowder
60. Tracer bullet is usually a mixture of magnesium perchlorate, and strontium salts that yields what
color?
A. Maroon
B. Dark Red
C. Bright Pink
D. Bright Red
61. A primer in which the anvil is a separate piece that sits in the primer cup. Thus, the primer pocket
has the flash-hole centered?
A. American primer
B. Berdan primer
C. Boxer primer
D. European primer
62. The common fingerprint or thumb mark of a firearm found on the bullet is known as ______.
A. Lands and grooves marks
B. Breech face marks
C. Magazine marks
D. All of these
63. This refers to the opinion gathered from the finding that will be the end result of the examination and should be taken
seriously as it involves the life and liberty of the suspect.
A. Facts
B. Findings
C. Conclusions
D. Opinion
64. Before test firing, the cartridge will be marked at the side of the case and on the nose portion of
the bullet with the letter “T”. What does the letter “T” mean?
A. The last 2 digits of the serial number
B. To represent test
C. Order of the recovery
D. Initial of the recovering officer
65. Smoothening of the inner surface of the gun barrel:
A. Drilling
B. Reaming
C. Chambering
D. Lapping
66. Confronted with two or more fired bullets, the firearm examiner should determine whether or not
they were fired from:
A. What model of firearm
B. Two or more firearm
C. One and the same firearm
D. Caliber of firearm
67. Individual characteristics of the firearm are those that are seen on the periphery of a bullet in the
form of:
A. Lands and grooves
B. Striations
C. Rifling’s
D. Impressions
68. The most noticeable individual characteristics that are seen on the base portion of the fired cartridge
case is the:
A. Ejector marks
B. Extractor marks
C. Firing pin impression
D. Breech face marks
69. Firearms identification was based on the principle that no two things made by one the same tool will
bear:
A. Different individual characteristics
B. The same individual characteristics
C. The same class characteristics
D. Different class characteristics
70. In comparing evidence bullet with the test bullet, a firearm examiner should first take into
consideration:
A. Class characteristics
B. Model of firearm
C. Individual characteristics
D. Type of firearm
71. An instrument used to determine similarities or dissimilarities between the evidence shell or bullet
and the test shell or bullet.
A. Comparison microscope
B. Helixometer
C. Onoscope
D. Stroboscope
72. An instrument used for the purpose of recovering a test bullet fired from a suspected firearm for
comparison with the questioned bullet:
A. Caliper
B. Helixometer
C. Onoscope
D. Recovery box
73. The second bullet during the bullet test examination is called:
A. Comparison test
B. Experimentation
C. Confirmatory test
D. Conclusion
74. Phases of Forensic Ballistics are enumerated below, except:
A. Technical examination of ballistics exhibits
B. Field investigation
C. Legal proceedings or court trial
D. Transmittal of physical evidence
75. Specimen for test-firing shall be marked with T for test fire and last two digits of the serial number
plus, the order of test fire. As a well-oriented firearm examiner, T-24-2 means:
A. it should be 1st to test fire and for experimentation purposes.
B. it should be 3rd to test fire and for conclusion purposes.
C. it should be 2nd to test fire and for confirmation purposes.
D. it should be 4th to test fire and for preliminary purposes
76. In the recording, there should be a mark of the recovering officer. He uses a distinct mark such as
“initials” of the recovering officer or the victim or suspect but as the rules implies; never use the
letter_______.
A. XX
B. O
C. X
D. T
77. Which of the following can a field investigator use in marking physical evidence?
A. Stylus
B. Pointed object
C. Sharp pointed object
D. All of these
78. This valuable instrument is specially designed to permit the firearms examiner to determine the
similarity and dissimilarity between two fire bullets or two fired shells, by simultaneously observing magnified image in a
single microscopic field.
A. Bullet Comparison Microscope
B. Chronograph
C. Helixometer
D. Shadowgraph
79. It is the process of collecting pieces of evidence at the scene of the crime.
A. Recognition
B. Transmittal
C. Collection
D. Collects
80. Before test firing, the cartridge will be marked at the side of the case and on the nose portion of
the bullet with the letter “T”. What does the letter “T” mean?
A. The last 2 digits of the serial number
B. To represent test
C. Order of the recovery
D. Initial of the recovering office
81. The mark left on a bullet by a gun barrel is different from those left by any other gun barrel. This fact is most useful in
directly identifying the:
A. Bullet which caused a fatal wound
B. Direction from which a shot was fired
C. Gun from which the bullet was fired
D. Person who fired a particular gun
82. What division of forensic ballistics refers to the work of the police investigator in the field of crime scene?
A. Field investigation
B. Scene of the crime operation
C. Legal proceeding
D. Technical examination
83. In firearm identification, it refers to those characteristics which are determinable even before the manufacture of the
firearm:
A. Class characteristics
B. Geoballistics
C. Individual characteristics
D. Mechanical fingerprints
84. The pitch of rifling rate of twist in the barrel of a firearm is called:
A. Land
B. Groove
C. One complete revolution of the bullet
D. Range
85. Instrument used in measuring the pitch of the rifling:
A. Caliper
B. Chronograph
C. Helixometer
D. Torsion balance
86. What is the best way of picking a suspected firearm at the crime scene?
A. Picking it through the handle
B. Picking it through the barrel
C. Inserting handkerchief or string at the trigger guard
D. Inserting a rod at the barrel
87. An investigator who recovered a fired bullet from the crime scene will request the ballistician to determine;
A. Owner of the firearm
C. Caliber and type of the firearm
B. Model of the firearm
D. Manufacturer of the firearm
88. Republic Act 10591 also known as?
A. Child and Youth welfare Code
B. Comprehensive Firearms and Ammunition Regulation Act
C. Illegal Possession of Firearms
D. Illegal possession of Ammunition
89. A permit to carry firearms outside of residence shall be issued by?
A. Mayor
B. Chief PNP
C. President
D. Governor
90. What types of firearm licenses allow a citizen to own and possess a maximum of two registered firearms?
A. Type one
B. Type two
C. Type three
D. Type four
91. What types of licenses allows a citizen, who is a certified gun collector, to own and possess more than fifteen
registered firearms?
A. Type five
B. Type two
C. Type three
D. Type six
92. In order to qualify and acquire a license to own and possess a firearm or firearms and ammunition, the applicant must
be a Filipino citizen and at least how many years old?
A. 18 years old
B. 20 years old
C. 21 years old
D. 24 years old
93. In addition to the comparing of ammunition components to firearms, firearm examiners conduct other examinations
that usually include the following except:
a. Identify the person who fired the gun against a particular victim.
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 caliber and manufacturer of ammunition components.
d. When loaded with smaller shot, a shotgun will not penetrate walls as readily as rifle and pistol rounds, making it safer
for non-combatants when fired in or around populated structures.
94. The coverage of the term unlicensed firearm according to the new law on the firearm in the
Philippines includes the following:
A. Firearms with an expired license
B. Unauthorized use of a licensed firearm in the commission of the crime
C. licensed firearm but it was used in the commission of crime
D. All of the above
95. The result of the Dermal Nitrate Test can be used as conclusive evidence to prove the guilt of the suspect in cases
where the use of a firearm was involved. This statement is ___________.
A. True because it can determine the presence of gunpowder at the hands of the suspect
B. True because it can prove that the suspect used a firearm as a means of consummating the crime
C. False because the suspect might remove the gunpowder residue by the use of vinegar
D. False because it can only prove the presence of nitrates from the hands of the suspect, not his guilt
96. The following are the functions of the cartridge case, except:
A. Holds the bullet, gunpowder, and primer
B. Produces ignition to push the bullet out of the firearm
C. Serves as a waterproof container
D. Serves as a gas seal at the breech end of the barre
97. Measurable features of a specimen which indicated a restricted group source. They result from design features and
are therefore determined prior to manufacture.
A. Comparison Microscope
B. Firearms Identification
C. Class Characteristics
D. Forensic Science
98. The Mechanism on a Firearm that withdraws a cartridge or cartridge case from the chamber of a firearm.
A. Extractor
B. Ejector
C. Breech
D. Breech Face
99. Numerals, Letters, and Symbols stamped into the head of a cartridge case or shotshell case to identify the
manufacture, caliber, gauge, or give additional information.
A. Markings
B. Head Stamp
C. Stamp
D. Metal Etching
100. Gauge as applied to the shotgun indicates the bore diameter which is equal to the?
A. Distance of one side of the bore to the other
B. Diameter of the lead ball whose weight in the pound is equal to the reciprocal gauge
C. Diameter of the total number of the lead ball combined
D. Weight of the