SUPA Forensics Final Exam Review | Verified Exam Questions and
Answers | Latest Updated Study Material 2026
Question:
What is gunshot residue testing used for?
Answer:
To determine if an
individual fired a gun or for distance determination.
Question:
What does the Sodium Rhodizinate test for in gunshot residue analysis?
Answer:
The presence of lead or barium.
Question:
What does the Griess test detect?
Answer:
The presence of nitrites.
Question:
What is the purpose of using paraffin wax in gunshot residue testing?
Answer:
To detect nitrites and nitrates from gunpowder, though false positives can occur
from household items.
Question:
What tool is used to analyze gunshot residue at a microscopic level?
Answer:
Scanning electron microscope.
Question:
What are the two casting methods mentioned for toolmarks?
Answer:
Silicone for metal etches and dental molds for tire tracks or shoe prints.
,Question:
Why are bite marks considered unreliable in forensic analysis?
Answer:
They do not provide consistent or reliable results.
Question:
What is the purpose of serial number restoration in forensics?
Answer:
To
reveal altered serial numbers using methods like Magnaflux or Acid Etching.
Question:
What is Magnaflux used for in serial number restoration?
Answer:
It uses
magnetic properties for non-destructive testing.
Question:
How does Acid Etching work in restoring serial numbers?
Answer:
It uses
acid to eat away at the upper layer of an altered number to reveal the impressed patterns
underneath.
Question:
What is the formula for calculating density?
Answer:
Density =
mass/volume.
Question:
What is an intensive property in the context of physical properties of glass?
Answer:
A property that does not change regardless of the amount of substance.
, Question:
What is the definition of refractive index?
Answer:
The bending of light
waves as they pass through different media.
Question:
What does birefringence refer to in glass analysis?
Answer:
The difference
in two refractive index angles, which helps identify crystals.
Question:
What is Snell's Law?
Answer:
n1sin ?1 = n2sin ?2, used for calculating
the refractive index.
Question:
What are amorphous solids?
Answer:
Materials with a random arrangement
of particles, such as glass.
Question:
What is borosilicate glass known for?
Answer:
It has Boron oxide added
for strength at high heat and is commercially known as Pyrex.
Question:
What characteristic does tempered glass have?
Answer:
It fractures into
relatively harmless fragments when broken due to stress introduced by rapid heating and cooling.
Answers | Latest Updated Study Material 2026
Question:
What is gunshot residue testing used for?
Answer:
To determine if an
individual fired a gun or for distance determination.
Question:
What does the Sodium Rhodizinate test for in gunshot residue analysis?
Answer:
The presence of lead or barium.
Question:
What does the Griess test detect?
Answer:
The presence of nitrites.
Question:
What is the purpose of using paraffin wax in gunshot residue testing?
Answer:
To detect nitrites and nitrates from gunpowder, though false positives can occur
from household items.
Question:
What tool is used to analyze gunshot residue at a microscopic level?
Answer:
Scanning electron microscope.
Question:
What are the two casting methods mentioned for toolmarks?
Answer:
Silicone for metal etches and dental molds for tire tracks or shoe prints.
,Question:
Why are bite marks considered unreliable in forensic analysis?
Answer:
They do not provide consistent or reliable results.
Question:
What is the purpose of serial number restoration in forensics?
Answer:
To
reveal altered serial numbers using methods like Magnaflux or Acid Etching.
Question:
What is Magnaflux used for in serial number restoration?
Answer:
It uses
magnetic properties for non-destructive testing.
Question:
How does Acid Etching work in restoring serial numbers?
Answer:
It uses
acid to eat away at the upper layer of an altered number to reveal the impressed patterns
underneath.
Question:
What is the formula for calculating density?
Answer:
Density =
mass/volume.
Question:
What is an intensive property in the context of physical properties of glass?
Answer:
A property that does not change regardless of the amount of substance.
, Question:
What is the definition of refractive index?
Answer:
The bending of light
waves as they pass through different media.
Question:
What does birefringence refer to in glass analysis?
Answer:
The difference
in two refractive index angles, which helps identify crystals.
Question:
What is Snell's Law?
Answer:
n1sin ?1 = n2sin ?2, used for calculating
the refractive index.
Question:
What are amorphous solids?
Answer:
Materials with a random arrangement
of particles, such as glass.
Question:
What is borosilicate glass known for?
Answer:
It has Boron oxide added
for strength at high heat and is commercially known as Pyrex.
Question:
What characteristic does tempered glass have?
Answer:
It fractures into
relatively harmless fragments when broken due to stress introduced by rapid heating and cooling.
