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What must the driver first accomplish after positioning the telescoping aerial apparatus in the proper position for maximum efficiency ?
Apply all parking brakes
The device that secures and insures the aerial device is not damaged by the jarring movement of the traveling apparatus is called ...
The hold down locks
On most aerial apparatus, what causes the hold down locks to be released automatically?
When either the stabilizers are fully deployed, the selector valve has been shifted from stabilizers to aerial device, or when the PTO is engaged , depending on the apparatus design
On a tractor-tiller aerial ladder what is the second step that the driver must perform to raise the ladder after releasing the hold down locks?
Move the tiller operator\'s station
What type of aerial apparatus permits the boarding of personnel before the aerial device is raised or extended?
Aerial or elevating platforms
At what structural point on the aerial platform should firefighters riding on the platform attach their safety harness?
The manufacturer approved portion of the railing only
What is the correct sequence of actions use in deploying the aerial device from its bed on the apparatus?
Elevate the device, rotate the device, and extend the device.
How should the driver rotate aerial device to its target?
The tip of the device should be line up with the intended target and the turntable should be rotated smoothly.
Why are new drivers advised to sight down the top rails of the aerial device when extending the fly section of the device to the target?
sighting along the rails provides an extra margin of safety from the device ramming into the target
Once the aerial device has been lowered to its target the driver must ...
Engage all locks with which the apparatus is equipped
What is the probability of aerial ladder failure when the extension locks are seated and the elevation is at least 50°?
There\'s never been a recorded failure under the circumstances.
What action must be performed before the firefighters are permitted to ascend the aerial device ?
Check that the weight of the climbing firefighters does not exceed the rated capacity of the ladder
What safety procedures must a driver perform before the aerial device is lowered?
Offload personnel from the device, drain the waterway system, disengage the hoisting cylinder lock, extension, and the rotation lock, and raise the device away from the target object.
Once personnel are on the ground and the waterway is drained, what would be the next step after the aerial device has been raised away from the work area?
Retract all sections of the aerial device
When would the operator use the power assist retraction control?
When ice build up or low operating angle puts extraordinary stress on the hydraulic system
Before rotating aerial device table, the operator must ....
Check for obstructions in the device\'s path of rotation
How does the operator know when the aerial device has been rotated into the proper position for lowering and storage?
Graphic marks on the turntable or an electronic indicator light that activates when the aerial device is in the proper alignment
What techniques should the operator use to ensure that the aerial device is properly seated after it is lowered into the cradle?
The device is slowly lowered into the cradle until it comes into contact with the rest. Then the driver operates the lowering control with a quick downward motion to seat the device firmly
What actions must be operator of the tractor tiller aerialladder do before actuating holddown locks?
Replace the tiller operators station
How are the holddown locks activated on newer model aerial apparatus?
When the selector valve is shifted from aerial device to stabilizers, or when the PTO is disengaged
Whatfactors are most responsible for the majority of vehicle overturning incidents or ladder collapses
Over extension of the ladder at low angles of elevation
Loads that are steady, motionless, constant, or applied gradually or called...
Static loads
What type of weather should shock loading the aerial device be eliminated or greatly reduced ?
Cold weather
What is the maximum wind speed that ladder can safely tolerate ?
35 to 40 miles per
What environmental physical conditions indicate that winds are close to the maximum speed for safe and full aerial ladder operations?
Whole trees are in motion and walking into the wind is inconvenient and slightly impeded
Guy ropes should be secured to the fly of the aerial ladder under which circumstances ?
The apparatus is an older light duty model and winds are exceeding 35 mph
Guy ropes should be attached to the top of the fly section when it is necessary to extend the ladder ________ feet or more.
75 feet or more
How is ice shrugging performed?
By repeatedly extending and retracting the aerial device
In what direction from the apparatus should tension be maintained when using guy ropes?
In the direction from which the wind is coming
What are considered to be recommended deicing methods ?
Applying high-pressure steam to the iced equipment, shrugging off the ice, or applying aircraft chemical deicers
What method provides the greatest cooling effects for an apparatus exposed to the radiant heat or direct flame of fire incident?
Repositioning the apparatus
What action should the driver take if the ladder is showing visible discoloration during deployment at a fire incident?
Immediately remove the apparatus from service
What an NFPA standard establishes static load requirements that an aerial apparatus must meet when operating on a grade?
NFPA 1901
On the scene of a structure fire, you notice a pool of fluid on the pavement near the control box and it turns out to be hydraulic fluid. The aerial device is currently deployed and flowing water. What is the drivers next course of action.
Remove all personnel from the ladder and take the ladder out of service immediately
How often should drivers practice to maintain safe operations of aerial devices ?
What is the best definition of a shock load on an aerial ladder
Loads that involve motion
How long should you operate the auxiliary hydraulic pump for and how long should you let it rest between operations
For 1 min. intervals with a 1 min. rest
When a crew is deployed on an elevating platform, where should the driver be?
Standing by the lower pedestal controls, prepared to override the platform operator in the event that they become incapacitated or fail to see a hazard
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