Flashcards in Ch. 7: Fire Hose Nozzles and Flow Rates Deck (62)
What can be defined as a stream of water or other extinguishing agent after it leaves a nozzle until it reaches the desired point?
a fire stream
What three basic types of fire streams does the fire service utilize?
solid, fog, broken
What is a fire stream produced from a fixed orifice, smoothbore nozzle?
a solid stream
What is designed so that the shape of the water in the nozzle is gradually reduced until it reaches a point a short distance from the outlet?
solid stream nozzles
What may be produced by deflection at the periphery or by impinging jets of water or by a combination of these?
a fog stream
What is directly dependent on the width of the stream, the size of the water droplets, wind, and the amount of water flowing?
the reach of the fog stream
What are designed to flow a specific amount of water at a specific nozzle discharge pressure on all stream patterns?
constant flow nozzles
What are designed to be placed on attack lines that can be easily maneuvered by firefighters?
What is the maximum amount of water that can safely flow through a handline nozzle?
What is applied to any fire stream that is too large to be controlled without mechanical aid?
What doesn't just deliver large volumes of water but also have a greater reach than handheld streams?
What are the three basic types of monitors?
fixed, portable, and combination
What allows the stream direction and angle to be changed while water is being discharged?
What is mounted on a fire apparatus deck and is connected directly to the pump by permanent piping?
a turret pipe
What consists of a short length of large diameter hose with a large nozzle or large playpipe supported at the discharge end by a tripod?
What are those large-capacity nozzles that are designed to be placed on the end of an aerial device?
elevated master stream
What is a master stream device used in conjunction with aerial ladders?
a ladder pipe
What is known as the counterforce as water is discharged from a nozzle at a given pressure, a force pushes back on the firefighters handling the hoseline?
The fire stream produced from a fixed orifice, smoothbore nozzle is known as a -
What determines the flow from a solid stream nozzle?
- Nozzle pressure
- Size of the discharge opening
When solid streams are used as handlines they should be operated at which a the following nozzle pressures?
When solid streams are used as master streams they should be operated at which a the following nozzle pressures?
To strike or dash about or against, clashing with the sharp collision, or to come together with force; best describes which of the following?
The line bounding a rounded surface or the outward boundary of an object distinguish from its internal regions best describes which a the following?
A turning or state of being turned, a turning from a straight line or given course, or a bending or a deviation best describes which of the following?
A fog stream nozzle that drives several jets of water together at a set angle to break the water up into finely divided particles is called a -
__ are produced by deflecting water from the periphery to an inside circular stem in a periphery-deflected fog nozzle.
The reach of any fog stream is directly dependent on which of the following?
- The width of the stream.
- The size of the water droplets and the wind.
- The volume of water flowing.
Nozzles that are designed to flow a specific amount of water at a specific nozzle discharge pressure on all stream patterns are called -
Constant flow nozzles.