PART-2_THE FORENSIC BALLISTIC ARCHIVE: Mission FACT & FACT PLUS 2026
PHASE 1: INTERNAL & EXTERNAL BALLISTICS
1. The "Coefficient of Form" in ballistics is a numerical value used to express:
A) The ratio of the weight of the bullet to its diameter.
B) How much a bullet's shape departs from a standard projectile's aerodynamic efficiency.
C) The pressure generated within the chamber upon ignition.
D) The depth of the rifling grooves in the barrel.
2. Which of the following describes "Ricochet" behavior most accurately?
A) The bullet penetrates the target and remains lodged.
B) The projectile deflects off a surface at an angle less than the critical angle.
C) The complete fragmentation of a lead core upon impact.
D) The stabilization of a bullet through high-speed rotation.
3. In a semi-automatic pistol, the "Breech Face" marks are transferred to the cartridge case during which stage?
A) Feeding
B) Chambering
C) Firing (Rearward expansion)
D) Ejection
PHASE 2: WOUND BALLISTICS & GSR
4. The "Muzzle Blast" is primarily composed of:
A) Only the projectile and the wad.
B) Hot gases, unburnt powder, soot, and metallic particles.
C) Pure nitrogen gas and lead vapors.
D) Lubricant oil and copper shavings only.
5. A "Contact Wound" over a bony prominence (like the skull) often exhibits a "Stellar" or "Stellate" appearance due to:
A) The high velocity of the bullet.
B) Gases expanding between the skin and the bone, causing the skin to burst outward.
C) The rotation of the rifled bullet tearing the skin.
D) The presence of a silencer on the firearm.
6. The "Harrison and Gilroy Test" is used to detect which of the following in GSR?
A) Antimony, Barium, and Lead.
B) Nitroglycerin and Nitrocellulose.
C) Potassium Chlorate and Sulfur.
D) Copper and Nickel.
PHASE 3: IDENTIFICATION & LEGAL STANDARDS
7. When comparing two fired bullets under a Comparison Microscope, the primary focus for a positive match is the alignment of:
A) Land marks only.
B) Groove marks only.
C) Striations within the land and groove impressions.
D) The base diameter of the bullets.
8. Which of the following is an example of an "Accidental Characteristic" on a firearm?
A) The number of lands and grooves.
B) The direction of the twist (Right or Left).
C) A specific microscopic nick on the firing pin caused by wear.
D) The caliber of the weapon.
9. The "Shotgun Wad" can be forensically significant because it helps in:
A) Determining the exact age of the shooter.
B) Identifying the gauge of the shotgun and potentially the manufacturer.
C) Measuring the humidity of the crime scene.
D) Calculating the exact temperature of the barrel.
10. Under the latest forensic protocols for 2026, the term "IBIS" stands for:
A) Integrated Ballistic Identification System.
B) Internal Bullet Imaging Software.
C) International Board of Insurance Science.
D) Instantaneous Ballistic Impact Scanner.
ANSWER KEY
| # | Correct Choice | |
| 1 | B | |
| 2 | B | |
| 3 | C | |
| 4 | B | |
| 5 | B | |
| 6 | A | |
| 7 | C | |
| 8 | C | |
| 9 | B | |
| 10 | A |
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