Exam 17: Forensic Aspects of Fire and Explosion Investigation

Water does not interfere with laboratory methods used to detect and characterize flammable liquid residues.

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)The entire range of possible gas or vapor fuel concentrations in air that are capable of burning B)Any material used to start or sustain a fire C)The decomposition of solid organic matter by heat D)The minimum temperature at which a fuel spontaneously ignites E)A chemical transformation in which heat energy is liberated F)Any compound consisting of only carbon and hydrogen G)A chemical transformation in which heat is absorbed from the surroundings H)The combination of oxygen with other substances to produce new substances I)The ability or potential of a system or material to do work J)Combustion on the surface of a solid fuel in the absence of heat high enough to pyrolyze the fuel K)Rapid combination of oxygen with another substance, accompanied by production of noticeable heat and light L)An offender's pattern of operation M)A fire caused by a natural heat-producing process in the presence of sufficient air and fuel N)The minimum temperature at which a liquid fuel produces enough vapor to burn O)The heat liberated during combustion -Spontaneous combustion

Ammonium nitrate is a(n)________ agent.

________ is vapor containing volatile residues recovered from debris at a fire scene.

The ingredients in black powder are potassium nitrate, carbon, and ________.

Metals, beams, nails, fasteners, and bolts are examples of good ________.

Which of the following statements is true?

Dynamite has largely replaced ammonium-nitrate-based explosives for industrial uses.

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

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)The entire range of possible gas or vapor fuel concentrations in air that are capable of burning B)Any material used to start or sustain a fire C)The decomposition of solid organic matter by heat D)The minimum temperature at which a fuel spontaneously ignites E)A chemical transformation in which heat energy is liberated F)Any compound consisting of only carbon and hydrogen G)A chemical transformation in which heat is absorbed from the surroundings H)The combination of oxygen with other substances to produce new substances I)The ability or potential of a system or material to do work J)Combustion on the surface of a solid fuel in the absence of heat high enough to pyrolyze the fuel K)Rapid combination of oxygen with another substance, accompanied by production of noticeable heat and light L)An offender's pattern of operation M)A fire caused by a natural heat-producing process in the presence of sufficient air and fuel N)The minimum temperature at which a liquid fuel produces enough vapor to burn O)The heat liberated during combustion -Flash point

High explosives can be classified as either ________ or ________ explosives.

When investigators search a fire scene, the first focus must be on:

Which is a natural heat-producing process that may give rise to a fire?

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)The entire range of possible gas or vapor fuel concentrations in air that are capable of burning B)Any material used to start or sustain a fire C)The decomposition of solid organic matter by heat D)The minimum temperature at which a fuel spontaneously ignites E)A chemical transformation in which heat energy is liberated F)Any compound consisting of only carbon and hydrogen G)A chemical transformation in which heat is absorbed from the surroundings H)The combination of oxygen with other substances to produce new substances I)The ability or potential of a system or material to do work J)Combustion on the surface of a solid fuel in the absence of heat high enough to pyrolyze the fuel K)Rapid combination of oxygen with another substance, accompanied by production of noticeable heat and light L)An offender's pattern of operation M)A fire caused by a natural heat-producing process in the presence of sufficient air and fuel N)The minimum temperature at which a liquid fuel produces enough vapor to burn O)The heat liberated during combustion -Flammable range

The only ingredients required for a low explosive are fuel and a good oxidizing agent.

What is radiation?

PETN is the most powerful and popular military explosive.

Which of the following statements is FALSE?

Rusting is not accompanied by combustion.

The quantity of heat from a chemical reaction comes from: