Essentials of Fire Fighting 7, Chp 6,
Section B: True/ False Questions
&Answers
Portable fire extinguishers are often suitable for more than one class of fire -
ANSWERSTrue
Class C extinguisher agents are capable of conducting electricity - ANSWERSFlase:
Class C Extinguishing agents will not conduct electricity
A portable fire extinguisher should be used only for the fire type or types of which it is
intended - ANSWERSTrue
Water in water based agents cannot be used on a Class C fire until the electricity has
been shut off - ANSWERSTrue
When using an Aqueous film forming foam (AFFF) Extinguisher the operator should
apply foam directly on the fuel - ANSWERSFalse: allow it to rain down gently onto the
fuel surface or deflect the foam off a nearby object
Clean agent extinguishers should not be used to extinguish fires in energized electrical
equipment - ANSWERSFalse: clean agents are nonconductive and can extinguish
energized electrical equipment
Dry chemical agent application may result in a cloud of airborne particulates that may
reduce visibility and create respiratory problems - ANSWERSTrue
Any dry powder extinguishing agent can be used on any combustion metal -
ANSWERSFalse: no single extinguishing agent will control or extinguish fires in only
one type of metal
Dry powder if extinguishing agent should be applied gently to avoid breaking the crust
that may form over burning metal - ANSWERSTrue
When using a portable fire extinguisher, the operator should approach a fire from the
Leeward side - ANSWERSFalse: approach fire from upwind, wind at back
Section B: True/ False Questions
&Answers
Portable fire extinguishers are often suitable for more than one class of fire -
ANSWERSTrue
Class C extinguisher agents are capable of conducting electricity - ANSWERSFlase:
Class C Extinguishing agents will not conduct electricity
A portable fire extinguisher should be used only for the fire type or types of which it is
intended - ANSWERSTrue
Water in water based agents cannot be used on a Class C fire until the electricity has
been shut off - ANSWERSTrue
When using an Aqueous film forming foam (AFFF) Extinguisher the operator should
apply foam directly on the fuel - ANSWERSFalse: allow it to rain down gently onto the
fuel surface or deflect the foam off a nearby object
Clean agent extinguishers should not be used to extinguish fires in energized electrical
equipment - ANSWERSFalse: clean agents are nonconductive and can extinguish
energized electrical equipment
Dry chemical agent application may result in a cloud of airborne particulates that may
reduce visibility and create respiratory problems - ANSWERSTrue
Any dry powder extinguishing agent can be used on any combustion metal -
ANSWERSFalse: no single extinguishing agent will control or extinguish fires in only
one type of metal
Dry powder if extinguishing agent should be applied gently to avoid breaking the crust
that may form over burning metal - ANSWERSTrue
When using a portable fire extinguisher, the operator should approach a fire from the
Leeward side - ANSWERSFalse: approach fire from upwind, wind at back
