19 Operating Aerial Apparatus Flashcards
While climbing, how many points of contact must be maintained at all times
3
The ladder should never be extended or retracted when
Someone is on it
The primary control position for the aerial operator is where
Lower controls, usually turntable
Anytime a firefighter is operating the secondary controls of an aerial device there must also be what
An operator of the primary controls
Secondary aerial device controls are used for what
Final positioning of aerial device.
During rescue.
Other firefighting operations
Graphical or tabular description of the load that can be distributed on an aerial device based on factors such as extension elevation etc.
Load chart
Using one motion at a time while operating an aerial device is recommended unless
The situation is critical
Two types of articulating Ariel devices
Water towers. Aerial platforms
Articulating platforms should be operated in what relation to the turntable
Should be operated forward of the turntable
True false false been operations regardless of skill level should be minimized due to large amount of dynamic stress imposed on the aerial device when motion is halted
True
It is always most desirable to operate the nozzle of aerial master stream with what type of controls if available
Remote controls
What eliminates the need to place a firefighter and he has his position on the tip of an aerial device in order to use the waterway
Remote controls
How many firefighters should be on top fly when operating an aerial pipe
One
Sudden changes and water pressure for an aerial device pipe can cause what type of force
Shock loading
What is the 75-80-80 guideline for ladder pipe use
75°. 80% extended length. 80 psi nozzle pressure for 1.5” tip
Ladder pipes should use what direction of operation in regards to the rungs
Perpendicular
Older ladder pipes allow how many degrees of lateral sweep
15 degrees to either side
Newer ladder pipes offer how many degree sweep laterally
180° sweep
Protective water curtains on platforms are not designed to enable operations in situations where personnel may be exposed to radiant heat. They are intended to be used in what situations
Emergency situations for personnel are endangered by radiant heat or flame
Most reliable method for obtaining wind speed information involve the use of
Calibrated wind measuring equipment
Cold-weather can slow aerial device operation because
It increases viscosity of hydraulic oil
Cold weather can cause metal structures to be weaker than typical. During this type of weather what is to be done to reduce damage
Avoid shock loading
What is the limit of ice buildup allowed on an aerial device on all surfaces
1/4 inch
What is effective when applied to sliding services such as slip tubes on aerial devices to prevent immediate adhesion of ice
Grease application
Act of slowly extending and retracting aerial device to remove accumulated ice
Ice shrugging
In icy conditions the operator should consider keeping the aerial in line with what
In line with the apparatus
If the aerial device cannot be moved immediately when being exposed to heat what should be done to cool it
Direct water streams on the aerial
Prolonged operation under adverse environmental condition may cause hydraulic oil to rise in temperature. High oil temperatures can lead to
Premature equipment failure
Auxiliary hydraulic pump should be operated how
In intervals
Before activating auxiliary hydraulic pump must be insured
That the aerial device control over his position to allow for hydraulic pressure to flow
Aerial devices are sometimes used to create High Point anchor for rope rescue, because what is not recommended
Using the aerial device to physically lift a load
Type of aerial device that is particularly well-suited for below grade rescue operations
Three boom articulating aerial platform
True false never extend or retract with personnel on the ladder
True
When approaching a structure with the aerial device always finish by
Lowering
Keep aerial device his vehicle and personnel how far from powerlines if the voltage is not known
50 feet
Prior to extending or retracting, what should be done to pre-piped waterways with water flowing or with water in it
Drain water way
Fall protection features on an aerial device include
Handrails and on a platform, railings and gates
