Exam 13: Trace Evidence I: Hairs and Fibers

The chemical reaction associated with a fire is:

Complex chromatographic patterns can be simplified by passing the components emerging from the gas chromatographic column through a(n):

A fuel can only achieve combustion in:

What instrumentation is considered the most sensitive and reliable for detecting and characterizing flammable residues?

Explain how a forensic laboratory technician would test for the presence and identification of hydrocarbon residues.

The rapid combination of oxygen with a fuel, which produces a noticeable release of energy, is called:

What is the major advantage of using the vapor concentration technique with gas chromatography?

The decomposition of organic matter by heat describes:

Gasoline residues are best characterized by:

Complex chromatographic accelerant patterns can be simplified by:

List and explain the telltale signs that a fire has been accelerant initiated.

The movement of heat through a solid object is a process known as:

The concentrations at which a vapor-to-fuel mixture in the air is capable of burning is referred to as the:

The likelihood that spontaneous combustion will occur in improperly ventilated containers of highly unsaturated oils is ________ the likelihood that such combustion will occur with hydrocarbon lubricating oils.

The minimum temperature at which a liquid fuel will produce enough vapor to burn is called the:

Materials that have electrons firmly attached to their molecules

Telltale signs of arson include:

The transfer of heat energy by the movement of molecules within a liquid or gas is:

Arson investigators must work quickly to collect evidence at a fire scene because:

Hydrocarbon accelerants can be detected by: