FCTOXI
  • 1. Which chemical test can differentiate between original and altered ink entries?
A) Chromatographic
B) Paper aging test
C) Density gradient test
D) Immersion refractive index test
  • 2. What is the primary purpose of the folding endurance test in paper analysis?
A) To determine the paper's strength and durability
B) To test water absorption
C) To identify the paper manufacturer
D) To detect embedded fibers
  • 3. When white light passes through a glass sample, the bending of light is most closely related to which property?
A) Color
B) Density
C) Refractive index
D) Thickness
  • 4. What fracture pattern cracks appear first and radiate from the point of impact?
A) Compression cracks
B) Radial Cracks
C) Concentric 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 direction of bullet entry
B) The thickness of glass
C) By counting the cracks
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) Annealing
B) Etching
C) Electroplating
D) Molding
  • 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) Organic humus
B) Calcium carbonate
C) Clay minerals like mica
D) Quartz
  • 9. Occupational dust on a suspect's clothing helps to
A) Prove identity conclusively
B) Confirm age
C) Determine time of death
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) Carbon ink
C) Gallotanic ink
D) Anailine or nigrosine ink
  • 12. Which paper component confers water resistance?
A) Gelatin
B) Ash content
C) Rosin
D) Cellulose
  • 13. The term "compression mark" in the context of tool impression refers to
A) Deformation caused by a direct blow causing one strike mark
B) Impressions caused by friction
C) Multiple overlapping tool marks
D) Linear scratches made by a saw
  • 14. What is the forensic significance of a watermark?
A) It identifies the manufacturer and authenticity
B) It indicates document age
C) It detects forgery automatically
D) It reveals ink composition
  • 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) Is easily scratched
B) Has no forensic significance
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) pH value alone
B) Particle size, mineral content, organic elements
C) Water content
D) Color only
  • 18. The distinctiveness of footprints is most dependent on
A) Individualized wear patterns and ridge details
B) Size only
C) The shoe brand
D) The type of soil
  • 19. What is an important microscopic feature examiners look for in handwriting?
A) Signature length
B) Paper texture
C) Ink smell
D) Stroke direction, pressure variation, pen lifts or hesitations
  • 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 identify soil color
D) To measure soil temperature
  • 22. Which test helps to distinguish paper sizing type
A) Peneration test
B) Density gradient test
C) Chemical reaction(boiling nitric acid )
D) Ink Chromatography
  • 23. What forensic advantage does spectrographic analysis provide
A) DNA Measures density
B) Visual identification
C) Isolates Dna
D) Elemental composition of trace materials
  • 24. Which factor complicates forensic comparison of glass Fragments
A) Color uniformily
B) Surface smoothness
C) Thickness uniformity
D) Similarity of refractive indices among common glasses
  • 25. Which gives the most reliable microscopy evidence of tool mark
A) Chemical treatment
B) Casting the impression
C) Visual inspection
D) Photographic record alone
  • 26. When examining ink for alterations, what physical sign is often looked for
A) Logo presence
B) Ink color uniformity
C) Paper fold
D) Indentation differences and overlapping strokes
  • 27. is dental stone preferred over plaster of Paris for casting?
A) It has superior mechanical strength and captures fine details
B) It is less expensive
C) its dries slower
D) It sets faster
  • 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) 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) Get ink
B) Pencil mark
C) India ink
D) Aniline ink
  • 31. Which test differentiate paper based on its ash content ?
A) Water absoration
B) Ink chromatography
C) Density gradient
D) Burn test
  • 32. Which is a common limitation of forensic soil comparsons?
A) Soil contains DNA
B) Soil is impossible to analyze
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) Paper authenticity and manufacturing source
D) Age of the content
  • 34. What is the significance of ink diffusion into paper fiber ?
A) It only influences color
B) It can complicate attempt to erase or after writing
C) It makes forgery easier
D) It is irrelevant in forensic analysis
  • 35. How is the fracture surface of glass described?
A) Smooth and shiny
B) Rellective
C) Rough, conchoidal (shell-shaped) in many cases
D) Flat and polished
  • 36. Which soil characteristic is most useful in identifying a geographic origin?
A) Moisture content
B) Soil brightness
C) Clay mineral composition
D) Odor
  • 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) Footwear impressions
B) Fingernail prints
C) Ink prints
D) Air prints
  • 39. What is the typical microscopic structure forensic experts look for in soil?
A) Clump size and shapes
B) Leaf fragments only
C) Mineral particles and organic material
D) Water droplets
  • 40. An alteration on a document created by washing ink with chemicals is called
A) Obliteration
B) Tracing
C) Simulated writing
D) Erasure
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