Glass, Arson and Firearm Test

Front

True or false: Every bullet shot from a gun has distinctive marks that identify the gun.

Back

True

Front

A crack in glass that extends outward like the spoke of a wheel from the point at which the glass was struck is called:

Back

Radial Fracture

Front

The three elements of the fire triangle are:

Back

Heat, Fuel, Oxygen

Front

If you examine a piece of glass and discover the Becke line is inside the glass in an oil with a refractive index of 1.51, you most likely have:

Back

Eyeglass glass

Front

True or false: It is impossible to tell anything about a gun from the spent cartridge without the bullet.

Back

False

Front

What is the definition of a Radial Fracture?

Back

A crack in glass that extends outward from the point of impact.

Front

What are the three elements of the fire triangle?

Back

Heat, Fuel, Oxygen

Front

What does the Becke line indicate in forensic glass analysis?

Back

It helps determine the refractive index of the glass compared to the surrounding medium.

Front

What is the significance of distinctive marks on a bullet?

Back

They can be used to identify the specific firearm that fired the bullet.

Front

What type of glass is likely if the Becke line is observed inside the glass in oil with a refractive index of 1.51?

Back

Eyeglass glass.