FORENSIC BALLISTICS
  • 1. he study of firearms, ammunition, and bullet effects is called
A) Toxicology
B) Forensic Ballistics
C) Serology
D) Dactyloscopy
  • 2. The spiral grooves inside a gun barrel are called
A) Impressions
B) Lands
C) Rifling
D) Bore marks
  • 3. The raised areas between grooves inside the firearm barrel are called
A) Scratches
B) Marks
C) Lands
D) Nodes
  • 4. Caliber The raised areas between grooves inside the firearm barrel are called
A) Length of barrel
B) Internal diameter of the barrel
C) Trigger pull force
D) Magazine capacity
  • 5. 5. The primary component in a cartridge that ignites gunpowder is:
    A. Jacket
    B. Primer
    C. Wad
    D. Shell
    Correct Answer: B. Primer
A) Jacket
B) Primer
C) Shell
D) Wad
  • 6. The visible smoke and powder expelled from the muzzle is called
A) Flashback
B) Bore smoke
C) GSR
D) Muzzle blast
  • 7. Gunshot residue (GSR) is usually tested on the
A) Teeth
B) Hands
C) Hair
D) Eyes
  • 8. Which tool is designed to compare bullet striations?
A) Electron microscope
B) Comparison Microscope
C) Compound light microscope
D) Phase contrast microscope
  • 9. A bullet meant to expand upon impact is called
A) Full metal jacket
B) Hollow point
C) Tracer bullet
D) Rubber bullet
  • 10. Shotgun ammunition uses
A) Pellets or slugs
B) Darts
C) Arrows
D) Nails
  • 11. Unique bullet markings come from the
A) Magazine
B) Trigger
C) Barrel
D) Grip
  • 12. Microscopic scratches on a fired bullet are called
A) Fractures
B) Grooves
C) Abrasions
D) Striations
  • 13. The narrowing at a shotgun muzzle end is known as
A) Constriction
B) Choke
C) Recoil
D) Gauge
  • 14. Wadding is used in
A) Crossbows
B) Handguns
C) Shotguns
D) Rifles
  • 15. Powder tattooing around a wound indicates
A) Contact shot
B) Close range
C) Exit wound
D) Far range
  • 16. Entrance wounds are commonly
A) Ragged and torn
B) Larger than exit wounds
C) Smaller and more circular
D) Square-shaped
  • 17. A bullet that passes through the body produces an
A) Abrasion collar
B) Grease ring
C) Exit wound
D) Stellate tear
  • 18. A contact gunshot wound typically appears
A) Smooth and oval
B) Square
C) Star-shaped
D) Tear-drop shaped
  • 19. GSR usually contains
A) Iron and nickel
B) Lead, barium, antimony
C) Gold and silver
D) Copper only
  • 20. A fired bullet is collected using
A) Metal tweezers
B) Bare hands
C) Magnet
D) Rubber tipped forceps
  • 21. Bullet trajectory analysis primarily determines
A) Fingerprint source
B) Weapon brand
C) Bullet color
D) Shooter position
  • 22. A dud cartridge is one that:
A) Overheats
B) Fails to fire
C) Explodes in magazine
D) Double shoots
  • 23. The word “ballistics” is derived from a term meaning
A) Throw
B) Explosion
C) Fire
D) Launch
  • 24. The curved flight path of a projectile because of gravity is
A) Ricochet
B) Deflection path
C) Parabolic path
D) Shockwave
  • 25. Shotgun bore size is measured in
A) Millimeters only
B) Chamber units
C) Caliber
D) Gauge
  • 26. The bullet impact likely to cause the most deformation occurs in
A) Water
B) Soft tissue
C) Clothing
D) Bone
  • 27. A silencer mainly reduces
A) Recoil
B) Muzzle flash
C) Noise
D) Bullet size
  • 28. Bullet wipe refers to
A) Residue ring at entrance wound
B) Blood smear on bullet
C) Oil on bullet surface
D) Cleaning before firing
  • 29. Cartridge case ejections from semi-automatic firearms show marks caused by
A) Screwdriver
B) Ejector and extractor
C) Trigger safety
D) Fingerprint brushes
  • 30. Ricochet means the
A) Bullet bounces off a surface
B) Bullet becomes non-lethal
C) Bullet explodes in flight
D) Bullet vaporizes
  • 31. Ricochet means the
A) Bullet explodes in flight
B) Bullet bounces off a surface
C) Bullet becomes non-lethal
D) Bullet vaporizes
  • 32. The imprint of the gun barrel around the entrance wound in contact shots is calle
A) Muzzle imprint
B) Abrasion collar
C) Stellate tear
D) Grease ring
  • 33. Which firearm part leaves a firing pin impression?
A) Safety lever
B) Firing pin
C) Slide
D) Trigger
  • 34. A fired cartridge case can be traced to a specific firearm using
A) Color
B) Breech face marks
C) Sound
D) Weight
  • 35. The explosion inside the cartridge occurs because of
A) Air pressure
B) Primer ignition and burning powder
C) Hammer force alone
D) Gravity
  • 36. Which test detects nitrates in GSR
A) Marquis test
B) Kastle-Meyer test
C) Luminol test
D) Diphenylamine test
  • 37. A class characteristic on a bullet refers to
A) Accidental imperfection
B) Unique individual scratches
C) Manufacturer-wide features
D) Post-impact damage
  • 38. he first person to apply ballistics to criminal investigation
A) Hans Gross
B) Henry Faulds
C) Edmond Locard
D) Calvin Goddard
  • 39. Excessive gunpowder burning around a target indicates
A) Gun malfunction
B) A ricochet
C) Old ammunition
D) Close-range firing
  • 40. In a shotgun, the number of pellets hitting a target decreases as
A) Temperature drops
B) Gauge lowers
C) Distance increases
D) Barrel shortens
  • 41. A revolver differs from a semi-automatic pistol by having a
A) Rotating slide
B) Cylinder
C) Gas piston
D) Magazine
  • 42. The discoloration ring around an entry wound is called
A) Abrasion collar
B) Tattooing
C) Grease ring
D) Clot halo
  • 43. A tracer bullet contains
A) Plastic core
B) Poison
C) Color dye
D) Pyrotechnic composition
  • 44. A bullet jacket is typically made of
A) Plastic
B) Wood
C) Rubber
D) Copper
  • 45. The burned and unburned powder around a target is known as
A) Bore dust
B) Gunshot residue
C) Cartridge
D) Smokeless dust
  • 46. The firearm mechanism that loads and ejects cartridges is the
A) Barrel
B) Trigger guard
C) Grip
D) Action
  • 47. A slug is used in a
A) Shotgun
B) Revolver
C) Machine gun
D) Blowgun
  • 48. A fully jacketed bullet has
A) Full metal covering
B) Rubber coating
C) No metallic covering
D) Half covering
  • 49. The term for bullet deviation after hitting a surface
A) Penetration
B) Ricochet
C) Expansion
D) Cavitation
  • 50. A projectile fired from a shotgun containing multiple lead balls is a
A) Dart
B) Pellet load
C) Pellet cluster
D) Arrow
  • 51. The first practical comparison microscope was developed by
A) Calvin Goddard
B) Carl Sagan
C) Isaac Newton
D) John Browning
  • 52. The chemical used in detecting lead on the target area is
A) Iodine
B) Benzidine
C) Phenolphthalein
D) Sodium rhodizonate
  • 53. Which bullet typically causes less penetration?
A) Hollow point bullet
B) Armor-piercing bullet
C) Steel core bullet
D) Full metal jacket
  • 54. Semi-automatic pistols eject cartridges due to
A) Gravity
B) Recoil or blowback
C) Trigger pull
D) Air pressure
  • 55. A tool mark caused by the slide stopping on the cartridge case is called
A) Breech face scratch
B) Slide bite
C) Lip impression
D) Chamber mark
  • 56. A cartridge case left behind at a crime scene is considered
A) Biological evidence
B) Class evidence only
C) Firearm evidence
D) Trace evidence
  • 57. The most reliable method for bullet identification is:
    A. Weight measurement
    B. Chemical analysis
    D. Caliber check
A) Striation comparison
B) Caliber check
C) Weight measurement
D) Chemical analysis
  • 58. Bullet fragments inside the body can indicate
A) Bounce trajectory
B) Hollow point usage
C) Silent firing
D) Low velocity firearm
  • 59. Shotguns without rifling produce
A) Serrated bore
B) Smooth bore
C) Polygonal rifling
D) Lands and grooves
  • 60. The area inside the barrel is called the
A) Groove
B) Tread
C) Bore
D) Rail
  • 61. A long gun fired from the shoulder is called a
A) Derringer
B) Revolver
C) Rifle
D) Pistol
  • 62. The speed of a bullet is measured in
A) Feet per second
B) Liters per shot
C) Calories per second
D) Meters per minute
  • 63. Which part of the firearm strikes the primer?
A) Magazine
B) Stock
C) Grip
D) Hammer
  • 64. A bullet traveling slower than the speed of sound is
A) Hypersonic
B) Subsonic
C) Sonic
D) Supersonic
  • 65. A blackened ring around an entrance wound indicates
A) Ricochet
B) Ricochet
C) Contact shot
D) Far shot
  • 66. Which firearm uses rimfire ammunition?
A) Most .22 caliber guns
B) All revolvers
C) All shotguns
D) All rifles
  • 67. The ability of a bullet to travel through material is called
A) Cavitation
B) Exposure
C) Expansion
D) Penetration
  • 68. The gas that pushes a bullet forward comes from
A) Burning gunpowder
B) Bullet friction
C) Trigger force
D) Air pressure
  • 69. Powder tattooing results from
A) Bullet deformation
B) Unburned powder striking skin
C) Smoke buildup
D) Contact firing
  • 70. Sawed-off shotguns are dangerous due to
A) Longer barrel
B) Increased pellet spread
C) Reduced recoil
D) Lower velocity
  • 71. A bullet’s path after firing is its
A) Rotation
B) Trajectory
C) Torque
D) Friction
  • 72. Which term refers to the rapid temporary cavity in tissue caused by a bullet’s energy
A) Abrasion
B) Cavitation
C) Tattooing
D) Fragmentation
  • 73. The rifling twist direction may be
A) Right or left
B) Straight only
C) None of the above
D) Forward only
  • 74. . Cartridge cases from revolvers are usually:
    A. Ejected automatically
    C. Turned into fragments
    D. Melted by heat
A) Melted by heat
B) Left inside the cylinder
C) Turned into fragments
D) Ejected automatically
  • 75. The diameter of a shotgun bore increases as the gauge number
A) Increases
B) Decreases
C) Disappears
D) Triples
  • 76. A bullet that separates from its jacket leaving the core behind has
A) Mislabeled
B) Fragmented
C) Overpenetrated
D) Ricocheted
  • 77. Full metal jacket bullets are mainly used for
A) Rapid expansion
B) Soft impact
C) Low velocity
D) Deep penetration
  • 78. A firing pin impression on the primer helps identify
A) Accuracy rate
B) Weapon cleanliness
C) Firearm type
D) Shooter age
  • 79. A bullet that exits and re-enters the body is known as
A) Shored entrance
B) Re-entry wound
C) Pass-through shot
D) Tangential wound
  • 80. A circular defect in glass with concentric cracks indicates
A) Thermal break
B) Chemical reaction
C) Explosion
D) Gunshot hole
  • 81. Bullets fired underwater have
A) No change in motion
B) Minimal range and high drag
C) Greater range
D) Increased velocity
  • 82. A contact shot to the head often causes a
A) Superficial mark
B) Collar burn
C) Non-lethal injury
D) Blowout of skull
  • 83. The heaviest part of a cartridge is usually the
A) Powder
B) Case
C) Bullet
D) Primer
  • 84. The flash hole connects the primer to the
A) Gunstock
B) Gunpowder charge
C) Bullet jacket
D) Barrel
  • 85. Bullets that glow in flight are called
A) Incendiary rounds
B) Frangible rounds
C) Blank cartridges
D) Tracer bullets
  • 86. A breakaway in bone from a gunshot exit wound is called
A) Beveling
B) Scaling
C) Cratering
D) Flaking
  • 87. The first step in firearm safety is
A) Clean the barrel
B) Check magazine capacity
C) Point the muzzle in a safe direction
D) Measure bullet caliber
  • 88. The portion of a revolver the shooter grips is called
A) Rail
B) Grip
C) Cylinder
D) Fore-end
  • 89. The projectile in a shotgun shell is often made of
A) Lead
B) Rubber only
C) Glass
D) Wood
  • 90. A blank cartridge contains
A) No case
B) No bullet
C) No powder
D) No primer
  • 91. Over-penetration refers to
A) Bullet stops quickly
B) Bullet exits the body
C) Failure to enter the target
D) Bullet evaporates on contact
  • 92. An ejected casing hitting a nearby object could cause
A) Breech explosion
B) Chamber tear
C) Trigger slip
D) Secondary impact marks
  • 93. A sawed-off shotgun is prohibited in many countries due to
A) Lower reliability
B) Easier concealment
C) Reduced power
D) Increased recoil
  • 94. The black residue around a wound from smoke is called
A) Tattooing
B) Bruising
C) Abrasion
D) Soot
  • 95. GSR test reliability decreases over time because
A) GSR evaporates
B) GSR changes color
C) GSR becomes magnetic
D) GSR washes off or falls away
  • 96. A gunshot fired from inside a bag or cloth case may show
A) Super clean entry
B) Fabric imprint or smudging
C) Shored entrance wound
D) . No marks
  • 97. Bullets that break into many pieces on impact are
A) Drone bullets
B) Rubber bullets
C) Armor-piercing bullets
D) Frangible bullets
  • 98. The gunpowder used in modern ammunition is mostly
A) Black powder
B) Flash powder
C) Smokeless powder
D) Gun cotton only
  • 99. The backspatter of blood toward the shooter usually indicates
A) Bullet ricochet
B) Contact or close-range shot
C) Gun malfunction
D) Far-range shot
  • 100. When a bullet penetrates glass, the entrance hole is usually
A) Larger than exit
B) Irregular
C) Smaller and smoother
D) Missing
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