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