IFSTA 7 Essentials Chapter 6 Test Questions & Answers
1 view 0 purchase
Course
IFSTA 7 Essentials Chapter 6
Institution
IFSTA 7 Essentials Chapter 6
Class A portable fire extinguishers are rated from 1-A through 40-A based upon the amount of water and: - ANSWERSduration and range of discharge used in extinguishing test fires.
A portable fire extinguisher must be labeled with the: - ANSWERSletters and/or symbols that designate its class ratin...
IFSTA 7 Essentials Chapter 6 Test
Questions & Answers
Class A portable fire extinguishers are rated from 1-A through 40-A based upon the
amount of water and: - ANSWERSduration and range of discharge used in
extinguishing test fires.
A portable fire extinguisher must be labeled with the: - ANSWERSletters and/or symbols
that designate its class rating.
Class K rated extinguishers work because of _____, which converts fatty acids into a
soapy film. - ANSWERSsaponification
When operating a portable fire extinguisher, it is safest to approach the fire: -
ANSWERSwith the wind at your back.
When an extinguishing agent is determined to be safe and effective for use on
combustible metals, it will: - ANSWERSinclude application instructions on the faceplate.
What is a characteristic of carbon dioxide (CO2) extinguishers? - ANSWERSCO2 gas
displaces oxygen to smother the fire
What do manufacturers sometimes add to stored-pressure water extinguishers in order
to increase their effectiveness? - ANSWERSClass A foam
Pump-type water extinguishers are intended primarily for use on: - ANSWERSground
cover fires
The air-aspirating foam nozzle used with an aqueous film forming foam (AFFF)
extinguisher produces: - ANSWERShigher quality foam than a standard extinguisher
nozzle
What is the first step in the PASS application method of operating a portable fire
extinguisher? - ANSWERSPull the pin to break the thin wire or plastic seal.
Portable fire extinguishers are classified according to the: - ANSWERStype of fire they
are designed to extinguish.
A _____ extinguisher requires the operator to apply pressure to a pump that increases
pressure within the container and forces the agent out the nozzle. - ANSWERSmanual
pump
, How does chemical flame inhibition work to extinguish fire? - ANSWERSInterrupts the
chemical chain reaction in the burning process
Which type of extinguishing agent is used to extinguish a Class B fire? -
ANSWERSCarbon dioxide
Which material is a Class B fuel? - ANSWERSGasoline
Which extinguishing agent should be used for a Class D fire? - ANSWERSDry powder
_____ is an example of a Class D fuel. - ANSWERSMagnesium
Which statement about Class C fires is accurate? - ANSWERSOnce the electricity has
been shut off to a Class C fire, it may be treated as a Class A or Class B fire.
In which situation would a dry chemical extinguisher be MOST effective? -
ANSWERSTitanium fire
Which extinguisher would be effective for use on a burning puddle of gasoline at a
vehicle incident? - ANSWERSAqueous film forming foam (AFFF) extinguisher
Which statement about using a portable fire extinguisher on an incipient stage fire is
accurate? - ANSWERSOperating close to the fire can scatter solid fuel or penetrate the
surface of liquid fuel.
What action should be taken if an entire extinguisher is discharged but the fire is not
extinguished? - ANSWERSWithdraw and reassess the situation
When operating a portable fire extinguisher,: - ANSWERSaim the nozzle at the base of
the fire.
When selecting the appropriate type of portable fire extinguisher to use for a situation, it
is important to consider: - ANSWERSthe class of fuel that is burning.
Class K fires involve: - ANSWERScooking oils.
Where would a clean agent extinguisher likely be used? - ANSWERSComputer room
fire
How would a fire containing plastics be classified? - ANSWERSClass A
On which type of fires are stored-pressure water mist extinguishers safe and effective to
use? - ANSWERSClass C
Which method of extinguishment excludes oxygen from the burning process? -
ANSWERSSmothering
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bestgrades2. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
