FIRE AND EXPLOSION
1.Electrons and atoms within a solid object exposed to
heat collide with one another, causing movement of heat
through the object in a process called _______
a) covenction.
b) evaporation
c) conduction
d) radiation
2.The speed at which low explosives decompose is called the speed of ___________.
a) deflagration
b) combustion
c) detonation
d) others
3.___________ describes a fire caused by a natural heat
producing process.
a) rapid combustion
b) spontaneous combustion
c) explosive combustion
d) instantaneous combustion
4.The technique of ___________ produces a unique
absorption spectrum for an organic explosive.
a) infrared spectroscopy
b) raman spectroscopy
c) ultraviolet-visible spectroscopy
d) photo emission
5. An obvious characteristic of a high explosive is the pres-
ence of a(n) ___________ at the origin of the blast.
a) crater
b) waves
c) both of them
d) none of them
6.The explosive core in detonating cord is ___________.
a) RDX (cyclotrimethylenetrinitramine)
b) TATP (Triacetone triperoxide)
c) TNT (trinitrotoluene)
d) PETN (pentaerythritol tetranitrate)
7.___________ explosives detonate almost instanta-
neously to produce a smashing or shattering effect.
a) low
b) medium
c) high
d) none of these
8.Explosives that decompose at relatively slow rates are
classified as ___________ explosives.
a) low
b) medium
c) high
d) none of these
9.Rapid combustion accompanied by the creation of large
volumes of gases describes a(n) ___________.
a) light
b) explosion
c) heat
d) both c and b
10.___________ containers must be used to package all
materials suspected of containing hydrocarbon residues.
a) water tight
b) leaky
c) air tight
d) permeable
11.___________ is a phenomenon in which a fuel burns without the presence of a flame.
a) smoldinger
b) glowing combustion
c) both of a and b
d) instantaneous combustion
12.The minimum temperature at which a fuel burns is
known as the ___________ temperature.
a) boiling point
b) minimum temperature
c) maximum temperature
d) ignition temperature
13.A search of the fire scene must focus on finding the
fire’s ___________.
a) origin
b) nature
c) ignition sequence
d) cause
14.The most widely used explosive in the military is
___________.
a) RDX (cyclotrimethylenetrinitramine)
b) TATP (Triacetone triperoxide)
c) TNT (trinitrotoluene)
d) PETN (pentaerythritol tetranitrate)
15.A low explosive becomes explosive and lethal only
when it is ___________.
a) liberated
b) open
c) confined
d) both a and b
"For answers and explanation you have to click on this Link"
Presentation By :-
Sneha A.K.
Volunteer Of Applied Forensic Research Sciences
