Forensic Glass Analysis Quiz

The refractive index of glass can be measured using:

• Spectrophotometry

• Density gradient tube

• Immersion method

• Micrometry

The most commonly encountered glass in forensic cases is:

• Crystal glass

• Borosilicate glass

• Tempered glass

• Soda-lime glass

What technique is used to determine elemental composition of glass?

• GC-MS

• SEM-EDS

• FTIR

• TLC

Which of the following is a physical property used in forensic glass analysis?

• Mass spectrum

• Refractive index

• Ion mobility

• Boiling point

Radial fractures form:

• Circular patterns around the impact

• Parallel to the glass surface

• Like spokes radiating from the point of impact

• Randomly throughout the glass

Concentric fractures are typically:

• Perpendicular lines to radial cracks

• Random small cracks

• Circular cracks around the impact site

• Seen only in laminated glass

Conchoidal markings in glass help determine:

• Age of the glass

• Thickness

• Direction of force

• Color of the glass

The side of the glass from which the force was applied will show:

• Wider radial cracks

• Wider concentric cracks

• Wider rib markings

• Wider exit bevel

Fracture patterns can be used to determine:

• Age of glass

• Number of impacts

• Glass manufacturer

• Contaminants in glass

If two radial fractures intersect, which one occurred first?

• The one with more rib marks

• The one that continues uninterrupted

• The one with fewer concentric fractures

• The one on the outer edge