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FCTOXI
Contributed by: Lizardo
  • 1. Which chemical test can differentiate between original and altered ink entries?
A) Paper aging test
B) Density gradient test
C) Immersion refractive index test
D) Chromatographic
  • 2. What is the primary purpose of the folding endurance test in paper analysis?
A) To identify the paper manufacturer
B) To detect embedded fibers
C) To determine the paper's strength and durability
D) To test water absorption
  • 3. When white light passes through a glass sample, the bending of light is most closely related to which property?
A) Density
B) Color
C) Refractive index
D) Thickness
  • 4. What fracture pattern cracks appear first and radiate from the point of impact?
A) Concentric Cracks
B) Compression cracks
C) Conchoidal
D) Radial Cracks
  • 5. A bullet passes through a glass pane, leaving two hole impressions with overlapping cracks. How do you determine the firing sequence?
A) The direction of bullet entry
B) By counting the cracks
C) The thickness of glass
D) The cracks of the first impact are interrupted by the second
  • 6. What metallurgical process involves removing layers from a metal surface to reveal tampered serial numbers?
A) Etching
B) Electroplating
C) Molding
D) Annealing
  • 7. Which alloy is commonly used to counterfeit coins by casting?
A) Copper-zinc alloy
B) Titanium alloy
C) Lead Alloy
D) Aluminum alloy
  • 8. Which soil component is most abundant in the Philippines and often relevant for forensic identification?
A) Quartz
B) Calcium carbonate
C) Clay minerals like mica
D) Organic humus
  • 9. Occupational dust on a suspect's clothing helps to
A) Confirm age
B) Determine time of death
C) Prove identity conclusively
D) Reveal their place of work
  • 10. .What casting material is preferred for delicate footwear impressions?
A) Plaster of Paris
B) Dental stone
C) Sand
D) Wax
  • 11. An ink that rapidly fades upon exposure to water in likely
A) Metallic ink
B) Gallotanic ink
C) Carbon ink
D) Anailine or nigrosine ink
  • 12. Which paper component confers water resistance?
A) Rosin
B) Ash content
C) Cellulose
D) Gelatin
  • 13. The term "compression mark" in the context of tool impression refers to
A) Multiple overlapping tool marks
B) Linear scratches made by a saw
C) Deformation caused by a direct blow causing one strike mark
D) Impressions caused by friction
  • 14. What is the forensic significance of a watermark?
A) It detects forgery automatically
B) It reveals ink composition
C) It indicates document age
D) It identifies the manufacturer and authenticity
  • 15. Radial cracks in glass form on the surface opposite the force of impact
A) False
B) True
  • 16. Laminated glass differs from tempered glass in that it
A) Has no forensic significance
B) Does not shatter easily due to an inner plastic interlayer
C) Shatters into tiny fragments
D) Is easily scratched
  • 17. How do forensic experts analyze soil samples attached to clothing?
A) Particle size, mineral content, organic elements
B) pH value alone
C) Water content
D) Color only
  • 18. The distinctiveness of footprints is most dependent on
A) Size only
B) The type of soil
C) The shoe brand
D) Individualized wear patterns and ridge details
  • 19. What is an important microscopic feature examiners look for in handwriting?
A) Paper texture
B) Ink smell
C) Stroke direction, pressure variation, pen lifts or hesitations
D) Signature length
  • 20. What is the best way to preserve a fragile ink signature for forensic analysis?
A) Allow drying them carefully protect with acid free paper
B) Flatten and laminate immediately
C) Apply chemicals to enhance visit
  • 21. What is the purpose of the flotation method in soil analysis
A) To identify soil color
B) To measure soil temperature
C) To separate soil particles by density
D) To assess soil ph
  • 22. Which test helps to distinguish paper sizing type
A) Chemical reaction(boiling nitric acid )
B) Peneration test
C) Ink Chromatography
D) Density gradient test
  • 23. What forensic advantage does spectrographic analysis provide
A) Elemental composition of trace materials
B) Visual identification
C) Isolates Dna
D) DNA Measures density
  • 24. Which factor complicates forensic comparison of glass Fragments
A) Similarity of refractive indices among common glasses
B) Thickness uniformity
C) Surface smoothness
D) Color uniformily
  • 25. Which gives the most reliable microscopy evidence of tool mark
A) Chemical treatment
B) Visual inspection
C) Casting the impression
D) Photographic record alone
  • 26. When examining ink for alterations, what physical sign is often looked for
A) Paper fold
B) Logo presence
C) Ink color uniformity
D) Indentation differences and overlapping strokes
  • 27. is dental stone preferred over plaster of Paris for casting?
A) its dries slower
B) It is less expensive
C) It has superior mechanical strength and captures fine details
D) It sets faster
  • 28. A forgery that imitates an individual's signature is called
A) Simulated writing
B) Traced writing
C) Anonymous writing
D) Disguised writing
  • 29. The presence of hematite in soil samples can indicate
A) Industrial contamination
B) Water pollution
C) High iron content useful for matching samples
D) Organic decomposition
  • 30. Which of these ink types is most stable and unlikely to fade over time?
A) Pencil mark
B) India ink
C) Aniline ink
D) Get ink
  • 31. Which test differentiate paper based on its ash content ?
A) Ink chromatography
B) Water absoration
C) Density gradient
D) Burn test
  • 32. Which is a common limitation of forensic soil comparsons?
A) Soil is impossible to analyze
B) Soil contains DNA
C) Soil is highly variable within a single location
  • 33. What does watermark visibility under transmitted light help establish?
A) Document size
B) Paper authenticity and manufacturing source
C) Age of the content
D) Ink type
  • 34. What is the significance of ink diffusion into paper fiber ?
A) It can complicate attempt to erase or after writing
B) It only influences color
C) It makes forgery easier
D) It is irrelevant in forensic analysis
  • 35. How is the fracture surface of glass described?
A) Flat and polished
B) Rough, conchoidal (shell-shaped) in many cases
C) Smooth and shiny
D) Rellective
  • 36. Which soil characteristic is most useful in identifying a geographic origin?
A) Clay mineral composition
B) Moisture content
C) Odor
D) Soil brightness
  • 37. Why is in chromatography valuable?
A) It measures ink acidity
B) It quantifies ink weight
C) It separates ink components, to identify specific formulations
D) It determines paper age
  • 38. Which print type is commonly used as evidence in criminal cases?
A) Footwear impressions
B) Ink prints
C) Fingernail prints
D) Air prints
  • 39. What is the typical microscopic structure forensic experts look for in soil?
A) Mineral particles and organic material
B) Clump size and shapes
C) Leaf fragments only
D) Water droplets
  • 40. An alteration on a document created by washing ink with chemicals is called
A) Obliteration
B) Simulated writing
C) Tracing
D) Erasure
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