FCTOXI
  • 1. Which chemical test can differentiate between original and altered ink entries?
A) Paper aging test
B) Immersion refractive index test
C) Density gradient test
D) Chromatographic
  • 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 detect embedded fibers
C) To identify the paper manufacturer
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) Color
C) Density
D) Refractive index
  • 4. What fracture pattern cracks appear first and radiate from the point of impact?
A) Conchoidal
B) Concentric Cracks
C) Compression cracks
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) By counting the cracks
B) The cracks of the first impact are interrupted by the second
C) The direction of bullet entry
D) The thickness of glass
  • 6. What metallurgical process involves removing layers from a metal surface to reveal tampered serial numbers?
A) Molding
B) Etching
C) Annealing
D) Electroplating
  • 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) Clay minerals like mica
C) Quartz
D) Calcium carbonate
  • 9. Occupational dust on a suspect's clothing helps to
A) Confirm age
B) Prove identity conclusively
C) Reveal their place of work
D) Determine time of death
  • 10. .What casting material is preferred for delicate footwear impressions?
A) Wax
B) Dental stone
C) Plaster of Paris
D) Sand
  • 11. An ink that rapidly fades upon exposure to water in likely
A) Anailine or nigrosine ink
B) Carbon ink
C) Metallic ink
D) Gallotanic ink
  • 12. Which paper component confers water resistance?
A) Rosin
B) Cellulose
C) Ash content
D) Gelatin
  • 13. The term "compression mark" in the context of tool impression refers to
A) Linear scratches made by a saw
B) Deformation caused by a direct blow causing one strike mark
C) Impressions caused by friction
D) Multiple overlapping tool marks
  • 14. What is the forensic significance of a watermark?
A) It indicates document age
B) It detects forgery automatically
C) It reveals ink composition
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) The type of soil
B) Size only
C) Individualized wear patterns and ridge details
D) The shoe brand
  • 19. What is an important microscopic feature examiners look for in handwriting?
A) Paper texture
B) Ink smell
C) Signature length
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) Allow drying them carefully protect with acid free paper
B) Apply chemicals to enhance visit
C) Flatten and laminate immediately
  • 21. What is the purpose of the flotation method in soil analysis
A) To measure soil temperature
B) To identify soil color
C) To assess soil ph
D) To separate soil particles by density
  • 22. Which test helps to distinguish paper sizing type
A) Density gradient test
B) Chemical reaction(boiling nitric acid )
C) Ink Chromatography
D) Peneration test
  • 23. What forensic advantage does spectrographic analysis provide
A) DNA Measures density
B) Isolates Dna
C) Elemental composition of trace materials
D) Visual identification
  • 24. Which factor complicates forensic comparison of glass Fragments
A) Thickness uniformity
B) Surface smoothness
C) Color uniformily
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) Photographic record alone
D) Visual inspection
  • 26. When examining ink for alterations, what physical sign is often looked for
A) Paper fold
B) Ink color uniformity
C) Indentation differences and overlapping strokes
D) Logo presence
  • 27. is dental stone preferred over plaster of Paris for casting?
A) It is less expensive
B) It has superior mechanical strength and captures fine details
C) its dries slower
D) It sets faster
  • 28. A forgery that imitates an individual's signature is called
A) Disguised writing
B) Simulated writing
C) Traced writing
D) Anonymous writing
  • 29. The presence of hematite in soil samples can indicate
A) Organic decomposition
B) Water pollution
C) High iron content useful for matching samples
D) Industrial contamination
  • 30. Which of these ink types is most stable and unlikely to fade over time?
A) Aniline ink
B) India ink
C) Pencil mark
D) Get ink
  • 31. Which test differentiate paper based on its ash content ?
A) Ink chromatography
B) Water absoration
C) Burn test
D) Density gradient
  • 32. Which is a common limitation of forensic soil comparsons?
A) Soil contains DNA
B) Soil is highly variable within a single location
C) Soil is impossible to analyze
  • 33. What does watermark visibility under transmitted light help establish?
A) Paper authenticity and manufacturing source
B) Ink type
C) Document size
D) Age of the content
  • 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) Flat and polished
C) Rough, conchoidal (shell-shaped) in many cases
D) Rellective
  • 36. Which soil characteristic is most useful in identifying a geographic origin?
A) Odor
B) Soil brightness
C) Clay mineral composition
D) Moisture content
  • 37. Why is in chromatography valuable?
A) It measures ink acidity
B) It determines paper age
C) It quantifies ink weight
D) It separates ink components, to identify specific formulations
  • 38. Which print type is commonly used as evidence in criminal cases?
A) Air prints
B) Footwear impressions
C) Fingernail prints
D) Ink prints
  • 39. What is the typical microscopic structure forensic experts look for in soil?
A) Water droplets
B) Clump size and shapes
C) Mineral particles and organic material
D) Leaf fragments only
  • 40. An alteration on a document created by washing ink with chemicals is called
A) Tracing
B) Obliteration
C) Simulated writing
D) Erasure
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