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