NEW
Font size
S
M
L
XL
WorksheetsArson & Explosives
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Which substance has the highest ignition temperature?
a)
Kerosene
b)
Octane
c)
Benzene
d)
Turpentine
2.
Telltale signs of arson include:
a)
"streamers" connecting burned areas
b)
The presence of accelerant containers
c)
Separate points of origin
d)
All of the above
3.
The rapid combination of oxygen with a fuel, which produces noticeable release of energy, is called:
a)
Ignition
b)
The flash point
c)
Combustion
d)
Explosion
4.
The minimum temperature at which a fuel will spontaneously ignite is called:
a)
the heat of combustion
b)
the boiling point
c)
the ignition temperature
d)
the flash point
5.
The minimum temperature at which a liquid fuel will produce enough vapor to burn is called the:
a)
flash point
b)
ignition temperature
c)
flammable range
d)
sublimation temperature
6.
The concentrations at which a vapor-to-fuel mixture is the air is capable of burning is referred to as the:
a)
spontaneous concentration
b)
heat of combustion
c)
flammable range
d)
ignition value
7.
When investigators search a fire scene, the focus must be on:
a)
looking for signs of breaking and entering
b)
interviewing witnesses
c)
finding the origin of the fire
d)
all of the above
8.
Arson investigators must work quickly to collect evidence at a fire scene because:
a)
accelerants in soil may rapidly degrade
b)
untrained personnel may contaminate the scene
c)
accelerant residues may quickly evaporate
d)
All of the above
9.
A fuel can only achieve combustion in:
a)
the solid state
b)
the liquid state
c)
in a liquid-solid state
d)
the gaseous state
10.
What is not true about primary explosives?
a)
They are very stable
b)
They are used in blasting caps
c)
They are not dangerous to handle
d)
Lead azide and lead styphnate are examples
11.
Which is not a high explosive
a)
dynamite
b)
black powder
c)
RDX
d)
tetryl
12.
Most explosives can be recovered from debris for future study by beings rinsed with:
a)
toulene
b)
water
c)
acetone
d)
motor oil
13.
Which is a homemade explosive that has been used by terrorist organizations in the Middle East?
a)
PETN
b)
TATP
c)
TNT
d)
RDX
14.
An explosive readily detonated by heat or shock is:
a)
dynamite
b)
primary explosive
c)
secondary explosive
d)
black powder
15.
A procedure commonly used as a screening test for explosive residues is:
a)
gas-chromotography-mass spectrometry
b)
gas chromotography
c)
color spot test
d)
all of the above
Reset
