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87 Cards in this Set
- Front
- Back
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The type of aerial apparatus chosen by a community is based on a variety of factors that include what?
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- Manueverability
- Length of reach needed - Most commontasks required of the aerial device - Amount of equipment that the apparatus needs to carry. |
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All aerial apparatus should meet design requirements of what NFPA standard?
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NFPA 1901
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NFPA 1901 defines an aerial device into what three basic categories?
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- Aerial ladders
- Elevating Platform - Water tower |
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IFSTA further breaks down aerial devices from three categories into what five types?
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- Aerial ladders
- Aerial ladders platforms - Telescoping aerial platforms - Articulating aerial platforms - Water Towers |
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A power-operated ladder that allows firefighters to easily climb and decend between the tip of the ladder ad the turntable for either firefighting r rescue operations.
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Aerial Ladder
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The fully extended length of an aerial ladder is also refered to as what?
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The working height
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North American made aerial ladders range in length from __-___ ft.
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50-135 ft
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The working height for an aerial is measured from where to where when the ladder is at maximum elevation and extension?
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From the ground to the highest ladder rung.
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What are the main uses of aerial ladders?
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- Rescue
- Ventilation - elevated master streams - Gaining access to upper floors |
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The tillers ability to be jackknifed may also aid in stabilization of the vehicle when the aerial device is deployed. Manufacturers are building in a minimum jackknife angle of how many degrees?
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30 degrees
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IFSTA divides the NFPA classification of elevating platform apparatus into what three distinct types of aerial devices?
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- Aerial ladder platforms
- Telescoping aerial platforms - Articulating aerial platforms |
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What s the minimum required floor space in an aerial platform?
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14 square feet
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On an aerial platform there can be no opening greater than what between the floor and the railing?
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24 inches
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The kickplate of the aerial platform is required to be how high from the floor level?
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4 inches
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All elevating platforms are required to have two operator control stations located where?
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One at street level and one in the platform.
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What can cause a heat reflective shield to lose it's ability to reflect heat?
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- Age
- Dirt - Damage |
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NFPA 1901 requires a protective water fog curtain nozzle n the bottom of aerial platforms that has a minimum flow of what?
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75 gpm
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All elevating platforms ar required to have a load capacity of what at full extension?
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750 lbs
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The load capacity of a platform drops to what, when the water delivery system is charged?
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500 lbs
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The water delivery system must be able to deliver how many gpm, when the aerial is in any position?
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1000 gpm
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How long should it take for an elvated platorm 110 ft or shorter to be raised from bedded position to the maximum elevation and extension and be rotated 90 degrees?
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150 seconds
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For elevated platforms 110 ft or taller, what is the required time for full elevation and extetion with 90 degree rotation?
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There is no retme limit
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The working height of an elevated platform is measured from where to where?
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From the ground to the top surface of the highest platform handrail.
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Aerial platforms commonly range in size from __-___ft.
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85-110 ft
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What is the most common aerial ladder platform in service today?
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Straight chassis, three-axle vehicle with rear-mounted aerial device
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Telescoping aerial platforms are equipped with a small ladder attached to the boom designed primarily for what?
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As an escape ladder for firefighters who are working in the bucket.
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What s th common size for telscoping aerial platforms in North America?
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75-100 ft
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Telescoping Aerial platforms booms are generally made from wha two types of construction?
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-Box beam construction
-Tubular truss-beam construction |
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Type of boom construction that consists of four sides of steel or aluminum welded together to form a box shape with a hollow center.
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Box-beam
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Type of boom construction that consists of tubular steel welded to form a box shape using cantilever triagle truss design.
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Tubular truss-beam
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An additional benefit of an articulating aerial platform is its ability to do what?
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To go "up and over" into areas that straight line aerials are unable to reach.
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Standard articulating aerials range in height from __-__ft.
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55-85 ft.
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Some manufacturers have a model that is an aerial ladder with an articulating platform at the end of the last fly section. These combination aerial devices range in height from __-___ft.
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90-174 ft.
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Common sizes for water towers range from __-___ft and are capable of maximum water flows ranging from ____-____gpm.
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50-130 ft; 1,000-5,000 gpm
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What are the established features, required by NFPA 1901, qualifying criteria for an apparatus as a quint?
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- Size of the fire pump
- Size of te water tank - Amount of supply and attack hose - Array and length of ground ladders - Pre-piped waterway on the aerial apparatus |
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Boom construction, that consists of an assembly of bars or rods to form a rigid framework.
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Trusses
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The bottom section of the aerial ladder.
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Base
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Second and subsequent sections that extend beyond the base section.
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Fly sections
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The lower chords of the aerial ladder to which rungs, trusses, and other portions of the ladder are attached; also called beams.
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Base Rails
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The top chords to which the opposite ends of the opposite ends of the trussing are attached; also called handrails.
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Rails
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The porions that are attached between the two base rails and used as steps for personnel on the aerial ladder.
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Rungs
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What are the three main components of a hydraulic system?
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- Hydraulic fluid
- Hydraulic pump - Hydraulic reservoir |
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Depending on the manufacturer of the aerial device, the pump used for the hydraulic system is either what two types of pump?
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- Rotary gear
- Rotary vane |
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Hose for a hydraulic system must be rated to withstand pressures at least how many times greater than normal operating pressures?
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4 times greater
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A three-way valve that directs fluid to either the stabilizer cntrol valves or the aerial device control valves.
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Selector valve (also known as a transfer valve or diverter valve)
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Mechanical device with a passageway tha controls the flow f a liquid or gas.
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Valve
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Automatic valve that permits liquid to flow in only one direction.
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Check valve
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Pressure control device designed to eiminate hazardous conditions resulting from excessive pressures by allowing this pressure to bypass to the intake side of the pump.
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Relief valve
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Valves designed to prevent unintentional or undesirable motion of an aerial device from position.
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Counterbalance Valve
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Double acting cylinders are capable of recieving oil under pressure from where so that force can be created in either direction?
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Both Sides
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Hoisting cyclinders are sometimes refered to as what?
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- Elevating cylinders
- Lift cylinders |
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Valve that controls te flow of hydraulic oil from an aerial apparatus hydraulic systemto the hydraulic cylinders.
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Actuator valve
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Multidirectional valve used to control the flow of hydraulic oit through a hydraulic system.
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Monitor Valve
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Type of multidirectional valve used in an aerial device hydraulic system.
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Stack valve
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Hydraulic cylinder capable of transmitting power in either direction, or hydraulic cylinder capable of transmitting force in only two directions.
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Double-acting cylinder
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In a hydraulic cylinder, the pivoting end of the piston rod tha is connected to the anchor ear by the heel pin.
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Trunnion
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The larger the piston area, the more ______ _____ is produced.
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Upward force
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Normal hydraulic pressure is ___-____psi.
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850-3000 psi
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In most aerial devices, the third, forth, and fifth sectionsf the aerial device are extended by what?
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A system of cables and pulleys
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The extension and retraction cables are made of what?
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Corrosion-resistant aircraft quality cables
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What is the very high strength steel that extension and retraction cables are made?
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Plow Steel
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The rotational structural component of the aerial device.
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The turntable
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What are the two common types of pre-piped waterway systems?
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- Bed ladder systems
- Telescoping waterway systems |
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What is the oldest type of pre-piped aerial ladder waterways?
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Bed Ladder Pipe
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Ladders that are 110ft or shorter are equipped with what type of waterway system?
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Telescoping water system
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The base section of a telescoping waterway generally has an internal diameter of what?
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4 inches
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Telescopng waterways are capable of flowing how many GPM?
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1,000 gpm
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Most ladders with detachable ladder pipe appliances restrict the sideways movement f the nozzle to about __ degrees either side of center.
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15 degrees
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Mast ladder pipes sould not be operated from an aerial positioned at a __ degree angle or ________ position.
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90 ; vertical
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Because elevating platforms typically have greater load capacites than aerial ladders, the piping on these systems may be larger, and flows of up to ____ gpm are possible on some models.
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2,000 gpm
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An option that is included on some water towers is a piercing nozzle at the end of the aerial device that delivers a broken stream capable of flows up to ___ gpm.
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300 gpm
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NFPA 1901 requires what type of communications on all aerial device apparatus?
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Two-way communications systems
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Even though NFPA 1901 does not require elevated platforms to have breathing air systems, but if they do have them what are the established requirements?
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- Number of firefighters t be supported by the system
- Capacity of compressed air cylinders - Pressure requirements of the piping system - Low air alarms - Conformity to government regulations |
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NFPA standard on Breathing Air Quality for Emergency Services Respitory Protection
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NFPA 1989
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Portable generators are powered by small gasolineor diesel engines and generally have ___- and/or ___-volt capability.
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110;220
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Some portable generators are capable of running for __hours and generating over _____watts of power.
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10 hours; 10,000 watts
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Vehicle-mounted power ants usually have ___- and___-volt capabilities with up to ______ watts of power available.
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110-volts; 220-volts; 12000 watts
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Generators on rescue vehicles are usually larger and is common to find them up to _____ watts capability.
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50,000 watts
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Portable lights generally range from ___-____watts.
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300-1000 watts
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Fixed bank of lights will have a capacity of ___-____watts per light.
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500-1500 watts
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The most common size cord is the __-gauge, _-wire type.
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12; 3
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What must electrical power cords have?
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- adequate insulation
- ground wire - be water proof - Have no exposed wires |
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What NFPA standard contains a list of the minimum equipment with which each aerialapparatus should be equipped.
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NFPA 1901
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Each fire agency can decide the particular length of each ladder based on local needs; however, the ladder compliment must include at least what?
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- Attic ladders
- Roof ladders - Extension ladders |
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What NFPA standard requires aerial apparatus to be equipped with multiple salvage covers and two scoop shovels to assist with salvage and overhaul efforts.
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NFPA 1901
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What do loss control efforts include?
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- Safe driving sills
- Water applicaton techniques - salvage and overhaul |
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The practice of minimizing damage and providing customer service through efective mitigation and recovery efforts before, during, and after an incident.
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Loss control
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