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