Exam 17: Forensic Aspects of Fire and Explosion Investigation

Bombs made of high explosives must be detonated by an initiating explosion.

What are the two classes of high explosives? What is the difference between the two classes?

The speed in a low explosive is called the speed of:

Where will an investigator usually locate the probable point of origin of a fire? What factors can cause a fire to deviate from normal behavior?

Explain the proper collection of evidence at the origin of a fire that is suspected of being initiated by gasoline.Describe the proper submission of controls for laboratory examination.

Soil and other soft loose materials collected at the scene of an explosion are best stored in metal containers.

The quantity of heat from a chemical reaction comes from:

What produces the violent physical disruption of the surrounding environment released in an explosion? Explain how this creates shrapnel when a bomb explodes.

Telltale signs of arson include:

Molecules must absorb energy when their bonds are reformed and they liberate energy when their bonds break apart.

Typically,the rate of a chemical reaction ________ when the temperature is raised.

If the fuel concentration in the fuel-air mix is too low or too great,combustion does not occur.

Combustion occurring at the surface of a solid describes:

Gasoline residues are best characterized by:

What is an oxidizing agent? Why is an oxidizing agent important to an explosion?

Heat energy is liberated in an endothermic reaction and absorbed in an exothermic reaction.

Which of the following statements is FALSE?

Which are common chemical ingredients of black powder?

A primary explosive is easily detonated by heat,friction,or ________.

What is the decomposition of organic matter by heat?