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