Chapter 18 Flashcards
Chapter 18
What is the most critical aspect of preparing an an aerial device for use?
Apparatus stabilization process
Rotating the device 360° will trace a?
Gravity circle
The PTO system provides the power to the _________Which in turn create a pressure on the fluid in the hydraulic system
HYDRAULIC PUMP
Not until the aerial apparatus is properly positioned in accordance with the condition on the scene should the driver engage the
PTO
Some apparatus manufacturers recommended that apparatus equipped with engine brakes or retarders may need to have that system shut off prior to engaging the PTO
true
Nozzle reaction actually transfers weight to the _____side from which the aerial device is being operated
Opposite
What are two ways that the truck can be uneven
1•laterally (side-side) the easiest to correct is
lateral unevenness
2•longitudinally (end-end)
The correction of lateral unevenness is possible on grades of up to
5° or a slope that rises 5 feet for every hundred feet of distance
After the Apparatus is stabilized, it is preferable to operate aerial device over
The uphill side of the Apparatus
The interlock prevent the flow of hydraulic fluid into or out of the____ while the aerial device is in use
Stabilization system
The holding valves prevent the movement of fluid within the
stabilization system
–THEORETICAL SAFETY ZONE THAT SURROUNDS THE CENTER OF GRAVITY ON A AERIAL APPARATUS
GRAVITY CIRCLE