16 Introduction To Aerial Fire Apparatus Flashcards
The base rails commonly called the beams are the lower chords to which what and other portions are attached
Rungs and trusses
Top rails are also called
Handrails
What part of the ladder hydraulic system allows air heat and foreign matter to be illuminated from the fluid before being reintroduced into the stabilizer system
Hydraulic reservoir
Three-way valve on aerial apparatus the direct oil to either stabilizer or aerial device control valves a.k.a. diverter valve
Selector valve
Hydraulic cylinders for elevation and telescopic control of aerial device and stabilizers are what type of action
Double acting cylinders
Sometimes referred to as elevating or lift cylinders their function is to elevate the aerial device from its stowed position
Hoisting cylinders
In a hydraulic cylinder the pivoting end of the piston rod that is connected to the anchor ear by the heel pin
Trunnion
Normal Ariel hydraulic pressure ranges from what
850-3000 PSI
Required minimum floor area of a platform is how many square feet
14 ft.²
Newer apparatus require platform doors to open in which direction
Inward
A kickplate is required and floor level to prevent the firefighters feet from sliding off the platform it must be how high
4 inches
All elevated platform to required to have two operator control stations true false
True
A protective water fog current nozzle must be provided on the bottom of a platform it is designed to flow at least how many GPM
75 GPM
Elevating platforms must have a minimal load capacity of how many pounds when fully extended and no water flowing
750 pounds
When flowing water the minimum load capacity of a platform is how many pounds
500 pounds
Elevating platforms less than 110 feet should be able to be raised from the bed to maximum elevation and extension and rotated 90° in how many seconds
150 seconds
Height of Ariel platforms I measured how
From the street to the highest handrail at full extension and elevation
Typical length of telescoping Ariel platforms range from
75-100 feet
Aerial ladder platforms typically range in size from
85-110 feet
Standard articulating aerial platforms range in height from
55-85 feet
Aerial device primarily intended for deploying an elevated master stream. No generally intended for climbing operations
Water tower
Length of water towers range from
50-130 feet
Apparatus that serves as an engine and as a ladder truck
Quint. Quintuple combination pumper
What five features qualify a Quint
Fire pump. Water tank. Supply and attack hoses. Ground ladders. Aerial device
Safety device that prevents a component from functioning when another component is functioning
Interlock
Generally the minimum inner dimension of telescoping waterways is how many inches
4 inches
Detachable water pipe systems are designed to be clamped on what rungs of the fly section
The top two rungs
Detachable water pipes are typically limited to flows of less than
Less than 750 GPM
Hose should be secured to the ladder for detachable pipes with hose straps in a minimum of how many locations
Hose straps minimum two or three locations
Most Ariel waterways have left and right restrictions of how many degrees from center in either direction for movement
15° either side of center
Which type of aerial device is safer to have a firefighter at the tip when flowing water
Elevated platform
The supporting beams of the ladder are of what type of construction
Aerial ladder truss
Water towers may have a piercer type nozzle at the tip which is capable of flowing up to how many gallons per minute
300 GPM
Common recommended lengths of electrical power cords should not exceed how many feet
200 feet
Hydraulic hose distances for extrication tools may have a negative effect on 12 operation if they are what length or greater
100 feet or greater from the hydraulic pump
For salvage and overhaul efforts aerial apparatus are required to be equipped with multiple salvage covers and how many scoop shovels
Two scoop shovels
freereplay in a tiller steering wheel should not exceed how many inches on a 20 inch wheel
No more than 2 inches
Free play in a tiller steering wheel should not exceed how many degrees on any size wheel
10°
Fluid should be checked in the hydraulic reservoir when the system is what temperature
Cold or otherwise specified
Check and fill hydraulic fluid only when the stabilizer and aerial device are in what position
Stowed positions
To prevent deadheading when testing the emergency power unit the main hydraulic system should be disengaged and a control valve must be what before turning on the pump
Control valve must be open
Operating a hydraulic pump without allowing flow through the system generating heat and pressure That can damage components
Deadheading
Non-destructive testing is conducted how frequently
Every five years,
after accents,
after aerial has been subjected to unusual stress,
following repairs
How frequently are serviced tests conducted while the apparatus is in service
At least a yearly basis
Air quality for aerial breathing air cylinders should be checked how often
Annually
Sequence of movement for operating an aerial device
Elevate rotate extend
If apparatus begin to lean toward one side after the stabilizers have been deployed for a while this indicates what
A leak in the stabilizer system
