Chapter 11 Flashcards by Aurora SG

Question: The _____ ____ is the amount of foam or foam solution needed to supress a fire.

Application Rate.

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Question: An eductor works on the _____ principle.

Venturi.

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Question: The technique of foam application where the foam is sprayed high into the air over the fire and it floats down onto it is called?

Snowflake or Raindown.

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Question: Which of the two class B flammable liquid categories (hydrocarbons and polar solvents) do not mix with water?

Hydrocarbons.

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Question: When having the option to connect to a standpipe of a sprinkler system, which one would you want to connect to first?

Standpipe

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Question: Fuels that mix well with water are called

Miscible or water soluble

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Question: This type of foam, when sprayed creates a high water retention rate, is heat resistant and is made from natural materials such as animal blood and metallic salts is called what?

Protein Foam

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Question: What is the term for how fast the foam spreads across the surface of fuel?

Knockdown speed

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Question: What class of foam is used to penetrate ordinary combustibles and keeps fuel wet, reducing its ability to burn?

Class A

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Question: The _____-___ technique is when the foam strikes the ground before the fire and rolls into the fire.

Bank-in

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Question: The ____-_____ or the bounce-off technique is when the foam is banked off a wall or other object and rolls back into the fire.

Bank-back

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Question: What two knots are used to hoist a pick-head axe?

Clove Hitch and Half Hitch

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Question: What knot is used to hoist a chainsaw?

Figure eight on a bight

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Question: The _____ _____ _____ ______ is when compressed air is injected into the foam solution PRIOR to entering any hose lines

Compressed Air Foam System OR CAFS

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Question: What kind of foams contain a polymer that forms a protective layer between the burning surface and the foam, preventing the foam breakdown by alcohols present in the burning fuel.

Alcohol-Resistant Foams

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Question: This term refers to the ability to contain or control the production of fuel vapors.

Vapor Suppression

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Question: This class of foam creates a blanket that cools and smothers the fire, floats on the surface, and seals in vapors.

Class B

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Question: When using foam, it is important to wash out the components that the foam went through because foam is _______.

Corrosive

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Question: High expansion foam, used to fill up entire areas, is a special type of what kind of foam?

Detergent (type) foams

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Question: _______ is the arrangement or configuration of the droplets of water or foam as they leave the nozzle.

Stream shape OR Stream pattern

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Question: _______ is the measurement of friction in a system such as a hose line

Friction Loss

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Question: _______ devices are capable of flowing over 350 gpm, and some have capabilities of many thousands of gallons per minute. These devices must be apparatus-mounted or secured properly.

Master stream

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Question: What is the major factor in nature that can negatively affect a fire stream?

Wind OR Wind Direction

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Question: _______ is the study of fluids at rest and in motion.

Hydraulics

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Question:The two basic types of nozzles are solid stream and ______ nozzles.

Fog

Question: _________ fire attack is used to attack the fire by aiming the flow of water directly at the seat of fire.

Direct

Question: One cubic foot of water in liquid form expands _________ times when converted to steam.

1,700

Question: ___________ fire attack is used to attack interior fires by applying a fog stream into a closed room or compartment, converting the water into steam to extinguish the fire.

Indirect

Question: One way to remember which way to adjust a fog nozzle is through the saying," ________ to fight, ________ for life"

Right, Left

Question: Fire ____________ is the water or other agent as it leaves the hose and nozzle toward its objective, usually the fire.

Stream

Question: What is the distance the water will travel after leaving the nozzle?

Nozzle Reach

Question: Velocity ______________ is the forward pressure of water as it leaves an opening?

Pressure

Question: What class of foam is used to protect homes in the urban interface (wild land)?

class A foam

Question: What % concentration is protein foam applied in?

3-6%

Question: Does protein foam or fluoroprotein foam have a faster knockdown time?

fluroprotein foam

Question: Device that siphons a liquid from a container into a moving stream.

eductor

Question: Before connecting to an FDC (Fire Department Connection), what is important to check for before sending water through the FDC?

Clear of debris, clear of trash, or the FDC is clear

Question: What does AFFF stand for?

Aqueous Film-Forming Foam 

Question:What type of nozzle is recomended for protein and fluoroprotein foam?

Foam nozzle

Question:A nozzle designed to pierce through building walls and floors is called?

piercing nozzle

Question:This nozzle has 6 or 9 openings designed to spin when placed in a basement fire.

Bresnan distributor or Broken Stream nozzle

Question:To tie a 5 gallon bucket for hoisting operations so its contents do not spill, which 2 knots are utilized?

Figure eight and Bowline

Question: In alcohol resistant foam, what forms between the fuel and foam itself?

Polymer

Question: The backward thrust when the bale is opened on a nozzle is called?

Nozzle Reaction

Question: An eductor in which the waterway is always piped through a venturi is an _________.

In-Line eductor

Question: _________ eliminate the need for friction loss calculations during pump operations.

Flowmeters

Question: What are the three methods of fire attack regarding a hose stream?

Direct, indirect, combination

Question: Protein foam is made from natural protein materials with ______ salts?

Metallic

Question: _______ is added to improve water's extinguishment ability for fires where water is ineffective?

Foam

Question: Piercing nozzles were originally designed to penetrate the skin of ________?

Aircraft

Question: What is the ability of the foam to stand up to the heat of the fire or to hot surfaces near the fire?

Heat resistance

Question: What is an aggregate of gas-filled bubbles formed from aqueous solutions of specially formulated concentrated liquid foaming agents.

Foam

Question: this is the amount of water that can be moved to extinguish the fire

available flow

Question: What are most foam tanks in engines made of?

Fiberglass

Question: How many gallons do most foam tanks in engines hold?

20-25 Gallons

Question: Which foam type is the most common and has a high knockdown rate and heat/vapor suppression?

Fluoroprotein

Question: For aircraft fires, what type of foam would be used?

High-tension

QUESTION: A NORMAL FOG HANDLINE HAS A NOZZLE PRESSURE OF___ PSI?

100

QUESTION: THE AMOUNT OF WATER FLOWING FROM THE DISCHARGE SIDE OF THE PUMP IS CALLED?

DISCHARGE FLOW

QUESTION: ALCOHOL - RESISTANT FOAMS ARE DESIGNATED BY THE LETTERS___ PRECEDING THE TYPE OF FOAM?

Question: What type of nozzle is capable of providing straight stream and spry patters, which are adjustable or variable by the operator?

Combination nozzle

Question: What knot is used for hoisting a med box or tool box?

Handcuff or Butterfly knot

Question: What is one of the four elements that affect a fire stream?

Pump, water, hose, or nozzle

Question: What type of foam uses synthetic surfactants to break down the surface tension of water and create a foaming blanket?

Detergent-type foams

Question: When using a combination fire attack, direct the nozzle at the ceiling and then the fire with a circular motion of what letter(s)?

Z or T

Question: Before attacking a fire with a charged hose, the firefighter should ____ the hose to make sure all the air and enough pressure is produced.

Bleed

Question: Caused by the rubbing of materials against each other while in movement and converts or robs some of the movement energy into heat energy is called ________

Friction

Question: What is a device with four spray nozzles designed to rotate in a circular spray pattern for fighting fires in basements or cellars when firefighters cannot make a direct on the fire?

Cellar Nozzle

Question: What percent of foam concentration should be used to put out an alcohol fire?

Question: What must be added to foam solution and water to complete the process of using foam application?

Air

Question: Foams are used on which two classes of fire?

Class A and Class B

Question: Water _____ is measured in pounds per square inch (psi) or kilopascals (kPA).

Pressure

Question: The rate or quantity of water delivered, usually measured in gallons per minute or liters per minute is known as?

Flow

Question: A tapered or constricted tube used to increase or change the direction of water or other fluids is known as a?

Nozzle

Question: Ability to tolerate the fuel and to avoid being saturated by our picking up the fuel is known as what?

Fuel resistance

Question: These polar solvent type foams create a ______ barrier that separates the pollar solvent from the liquid of the foam.

Polymeric

Question: oil, diesel, gasoline, kerosene are all types of what?

hydrocarbons

Question: alcohols, thinners, acetone, acetates are all types of what?

polar solvents

Question: in fuel, E85 is 85% ethanol and ____% gas?

15%

Question: Are heating oil and gasoline examples of Hydrocarbons or Polar Solvents?

Hydrocarbons

Question: In a straight stream nozzle, this creates an opening in the pattern, which may allow air into the stream and reduce its reach.

The baffle

Question: Name 1 of 3 disadvantages of a solid stream

lack of volume, lack of protection, higher nozzle reaction

Question: ___________ nozzles usually have shutoffs, but many other appliances do not provide shutoffs at the nozzle and the only control is the ability to aim it.

Handline

Question: Adjustable ___________ nozzles provide personal protection for the nozzle person by utilizing a screening effect from the convected and radiated heat..

fog

Question: Many Fire Departments have tried to minimize the possibility of thermal burns by utilizing _________ stream nozzles for interior fire attack.

Solid

Question: What is ONE important factor in nozzle selection?

nozzle pressure, flow, reach, stream shape or reaction.

Question: Nozzle pressure is the pressure for effective nozzle operation and relates to _____ and ______.

flow and reach.

Question: Small diameter hose lines typically flow from 100 to over ________gpm?

250

Question: Regarding water flow from a nozzle, increasing restriction will increase_________?

Pressure