Why are propane tanks an extreme risk to firefighters?

Why are propane tanks an extreme risk to firefighters? The tanks will explode when sufficiently heated. … What flammable gas that is stored in pressurized tanks is also known as LPG?

Which method of foam proportioning involves drawing foam concentrate through a hose into the water stream using the Venturi effect?

Cards

Term Ball Valve Definition Valve having a ball-shaped internal component with a hole through its center that permits water to flow through when aligned with the waterway
Term Proportioning Definition Mixing of water with an appropriate amount of foam concentrate to form a foam solution.

Which type of liquid fuels have a flash point of less than 100 F 38 C )?

Class I liquids have flash points below 100 °F (38 °C), Class II liquids have flash points between 100 °F and 140 °F (38 °C and 60 °C), and Class III liquids have flash points at or above 140°F (60 °C).

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Which type of nozzle produces high quality foam by induction air into the foam solution using the Venturi effect?

best against AFFF AND class A foam. AAFN nozzles induct air into the foam solution by a Venturi action.

What is needed to create a finished foam?

Four elements are necessary to produce a quality foam blanket. These elements include: foam concentrate, • water, • air, and • aeration (mechanical agitation). All of these elements must be combined properly to produce a quality foam blanket (see Figure 5.1).

When a foam concentrate container is labeled 1% or 3% What does that signify?

If the container of foam concentrate has 3% shown, it means that for every 100 gallons of foam solution required, 3 gallons of the foam concentrate must be used in the solution with the balance being 97 gallons of water.

Polyurethane foam is the most common synthetic foam used in mattresses.

What is the most flammable liquid?

1) Chlorine Trifluoride is the most flammable gas

Of all the dangerous chemical gases, chlorine trifluoride is known to be the most flammable.

What flashpoint is considered flammable?

Flammable liquid is any liquid having a flashpoint at or below 199.4 °F (93 °C).

Why are propane tanks an extreme risk to firefighters quizlet?

Why are propane tanks an extreme risk to firefighters? The tanks will explode when sufficiently heated.

Is Class A foam AFFF?

Class A foams are used to extinguish fires caused by wood, paper, and brush. … Of the fluorinated foams, aqueous film forming foams or “AFFF” are the foams that contain varying amounts and mixtures of PFAS, and of the most concern to human health and the environment.

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