Chapter 18 - Stabilizing the Apparatus Flashcards
The apparatus \_\_\_\_\_\_ process is perhaps the most critical aspect of preparing an aerial device for use. A. stabilization B. driving C. inspection D. monitoring
A. stabilization
\_\_\_\_\_\_\_ training on the aerial is the ONLY way to accomplish efficiency when stabilizing. A. one on one B. repetitive C. daily D. yearly
B. repetitive
When an aerial device is raised AND extended to either side of the chassis, the wheel \_\_\_\_\_ and suspension of the apparatus are not adequate to handle the weight and the \_\_\_\_\_\_\_ momentum that the extended aerial device creates. A. base, great B. span, aerial C. span, torsional D. base, swift
C. span, torsional
When an aerial device is raised AND extended to either side of the chassis, the wheel span and \_\_\_\_\_\_\_\_ of the apparatus are not adequate to handle the \_\_\_\_\_ and the torsional momentum that the extended aerial device creates. A. base, movement B. aerial, actions C. base, weight D. suspension, weight
D. suspension, weight
When an aerial device is raised AND extended to either side of the chassis, the wheel span and suspension of the apparatus are not adequate to handle the weight and the torsional momentum that the extended aerial device creates. Therefore, it is necessary to \_\_\_\_\_\_ or widen the base of the chassis beyond the span of the wheels so that it resists the tendency to \_\_\_\_\_\_ when the device is extended over one side or the other. A. broaden, overturn B. broaden, flip C. blow up, overturn D. none of the above
A. broaden, overturn
Are aerial apparatus stabilizing principles fairly complicated? YES or NO
NO - fairly simple
Essentially, an aerial apparatus is a system of \_\_\_\_\_\_\_\_\_ components. A. mismatch B. connected C. electric D. metal
B. connected
When parked, with the aerial device in its \_\_\_\_\_\_\_ position, the apparatus has a center of gravity located somewhere along the \_\_\_\_\_\_\_\_ midline of the chassis, between the front and rear axles. A. extended, longitudinal B. raised, parallel C. stowed, longitudinal D. raised, proper
C. stowed, longitudinal
If the aerial device is deployed WITHOUT first setting the stabilizers, the base of stability is limited to the \_\_\_\_\_\_ formed at each corner by the tires of the apparatus. A. rectangle B. circle C. square D. oval
A. rectangle
If the aerial device is deployed WITHOUT first setting the stabilizers, the base of stability is limited to the rectangle formed at each corner by the tires of the apparatus. This LIMITED BASE OF STABILITY is ______(desirable/undesirable?) because the inherent _______ (flexibility/inflexibility?) of the suspension AND tires.
- undesirable
- flexibility
When the aerial device is elevated from the resting position of the cradle, the \_\_\_\_\_\_\_\_ begins to take on more and more weight as the device is raised. A. aerial B. suspension C. chassis D. none of the above
B. suspension
What should you do, even if you only lift the device a few feet from the cradle to open the tilt cab in order to minimize or eliminate stress on the suspension?
place stabilizers in position
Who recommends fully deploying stabilizers and stabilizer pads (jack plates) during EVERY stabilizer setup and every time the aerial device is raised from its bed? A. NFPA B. AHJ C. IFSTA D. OSHA
C. IFSTA
What is another name for jack plates?
stabilizer pads
By deploying the apparatus stabilizers, the base of stability for the aerial is effectively ________ (increased/decreased?)
increased
Stabilizers = increased base of \_\_\_\_\_\_\_ A. protection B. gravity C. stabilizers D. stability
D. stability
Extending the device straight over the apparatus will cause a ______ forward shift in the center of gravity.
corresponding
If the driver begins to rotate the extended aerial device, the center of ______ would move away from the longitudinal midline of the apparatus toward the side of the aerial device operation.
gravity
If the driver begins to rotate the extended aerial device, the center of gravity would move away from the l________ midline of the apparatus toward the side of the aerial device operation.
longitudinal
If the driver begins to rotate the extended aerial device 360°, it will trace a \_\_\_\_\_\_\_\_\_. A. gravity circle B. stabilization grid C. gravity grid D. round base
A. gravity circle
As long as the gravity circle does not extend outside the base of \_\_\_\_\_, the apparatus should remain stable. A. the chassis B. stability C. rig D. the wheels
B. stability
The gravity circle of a short-jacked side of an aerial will extend _______(beyond/just to?) the base of stability.
beyond
The gravity circle of a short-jacked side of an aerial will extend beyond the base of stability indicating that extending the aerial device on the short-jacked side will likely \_\_\_\_\_\_\_ the apparatus. A. stabilize B. move C. overturn C. none of the above
C. overturn
Newer apparatus may be equipped with limit switches (rotational \_\_\_\_\_\_) that prevent the movement of the aerial device to the short-jacked side. A. stop B. check C. switch D. interlock
D. interlock
Another name for a rotational interlock is a .... A. limit switch B. check gauge C. check switch D. limit lever
A. limit switch
Should you rely ONLY on the limit switch (rotational interlock) automatic feature from preventing a serious accident? YES or NO
NO
\_\_\_\_\_\_ grades may also have an adverse effect on the stability of an apparatus. A. front to back B. lateral C. down A. up
B. lateral
If parked on a lateral grade, the center of gravity (and theoretical gravity circle) will shift to the _______(lower/higher?) side.
lower
If parked on a lateral grade, the center of gravity (and theoretical gravity circle) will shift to the lower side. If the aerial device is raised over the lower side, the gravity circle may extend beyond the \_\_\_\_\_\_\_\_. A. wheels B. chassis base C. base of stability D. circle maximums
C. base of stability
\_\_\_\_\_\_ the aerial device can also have an adverse effect on the stability of the apparatus, even if a level surface with the stabilizers fully deployed. A. overpowering B. underpowering C. overloading D. underloading
C. overloading
Overloading the aerial device can also have an adverse effect on the stability of the apparatus, even if a level surface with the stabilizers fully deployed. This will result in an expansion of the \_\_\_\_\_\_\_\_. A. gravity circle B. stabilization grid C. gravity grid D. round base
A. gravity circle
OVERLOADING = expansion of gravity circle = outside the base of stability(mostly to either side)
Exmp: overextended older apparatus that is operating at ___ angles of elevation.
low
What is another name for outriggers, groundjacks and screw jacks?
stabilizers
Stabilizers, outriggers, groundjacks and screw jacks are required to prevent the apparatus from tipping as the aerial device is extended _____ (away from/closer to?) the centerline of the chassis.
away
Type, size and configuration of the aerial require different types of st________.
stabilizers
What is another name for downriggers? A. box stabilizers B. a-frame C. scissor D. post-type stabilizers
D. post-type stabilizers
3 of the most common types of stabilizers are:
- p___-type stabilizers
- b___ stabilizers
- A-f_____ stabilizers
- post-type
- box
- A-frame
What type of stabilizer are straight jacks that extend down form the chassis? A. post-type B. A-frame C. downriggers D. both A and C
D. both A and C (post-type, downriggers)
What type of stabilizer extends straight away from the truck and have jacks that extend straight down to the ground? A. X-style B. box C. H D. both B and C
D. both B and C (box, H)
What type of stabilizer are also called fulcrum-type stabilizers? A. A-frame B. scissor C. X-style D. all of the above
D. all of the above
What type of stabilizer extend down and away from the chassis at an angle? A. A-frame B. scissor C. X-style D. all of the above
D. all of the above
You must engage this in order to deploy the stabilizers and the aerial device? HY______ system
hydraulic
What two things can you deploy after you activate the power take-off (PTO) or other specialized hydraulic systems?
stabilizers and aerial device
The PTO provides the p_____ to the hydraulic pump, which in turn creates a p_____ on the fluid in the hydraulic system.
- power
- pressure
Should you engage the PTO if the aerial apparatus has NOT been positioned properly in accordance with the conditions? YES or NO
NO
The process of engaging the PTO is fairly similar on aerials, but the type of PTO activation switch varies. TRUE or FALSE
TRUE
The engagement switch for the PTO or hydraulic system is usually located on the dashboard of the vehicle, between the driver and passenger/officer seats OR (TYPICALLY) in the switch panel above the driver’s seat. TRUE or FALSE
TRUE
The type of PTO varies from m_______ to m______ and may be pn_____, e_____, h____ or a combo of these 3.
- manufacturer
- manufacturer
- pneumatic
- electric
- hydraulic
The type of PTO varies from manufacturer to manufacturer and may be pneumatic, electric, hydraulic or a combo of these 3. Pneumatic systems require anywhere from \_\_\_ to \_\_\_ psi air pressure for the PTO to be operated, depending on the manufacturer. A. 50 to 140 B. 50 to 100 C. 30 to 130 D. 10 to 50
A. 50 to 140
The procedures for engaging and disengaging PTOs on aerial apparatus depend upon the type of \_\_\_\_\_\_\_ the apparatus has and whether or not the apparatus is equipped with a fire pump. A. coloring B. transmission C. ladder D. tires
B. transmission
The procedures for engaging and disengaging PTOs on aerial apparatus depend upon the type of transmission the apparatus has and whether or not the apparatus is equipped with a \_\_\_\_\_\_\_. A. bucket B. nozzle C. long extension D. fire pump
D. fire pump
Some apparatus manufacturers recommend that the apparatus equipped with engine brakes or retarders may need to have the system _____ prior to engaging the PTO.
shut off
4 types of PTO engaging procedures:
- automatic transmission without a f__ p__
- ma____ transmission without a fire pump
- au_____ transmission with fire pump in USE
- manual transmission with fire pump in u___
- fire pump
- manual
- automatic
- use
Most new models of aerials are equipped with a "\_\_-shift" PTO system that are acceptable to engage when the main transmission is in neutral. A. wet B. go C. hot D. ready
C. hot
Most new models of aerials are equipped with a “hot-shift” PTO system that are acceptable to engage when the main transmission is in neutral. ONLY hot-shift if the you know that the apparatus is equipped with the system. TRUE or FALSE
TRUE
Most new models of aerials are equipped with a “hot-shift” PTO system that are acceptable to engage when the main transmission is in neutral. ONLY hot-shift if the you know that the apparatus is equipped with the system. If you do hot-shift and the apparatus does not have the system, it could result in damage to both the _ _ _ and the main tr_______.
- PTO
- transmission
Whenever possible, ______ the aerial device before activating the pump.
position
Whenever possible, position the aerial device before activating the pump. However, when the fire pump is already activated and in use, and the hydraulic system needs to be activated later, it is necessary to ______(higher/lower?) engine speed to near idle prior to engaging the HY_____ system PTO or other devices.
- lower
- hydraulic
Whenever possible, position the aerial device before activating the pump. However, when the fire pump is already activated and in use, and the hydraulic system needs to be activated later, it is necessary to lower engine speed to near idle prior to engaging the hydraulic system PTO or other devices. What will happen to the water supply to nozzles?
lower
Whenever possible, position the aerial device before activating the pump. However, when the fire pump is already activated and in use, and the hydraulic system needs to be activated later, it is necessary to lower engine speed to near idle prior to engaging the hydraulic system PTO or other devices. Water supply will lower to handlines. The operator must notify WHO about this?
personnel on handlines and nozzles
What process should begin with the driver and officer assessing the setup area?
process of setting stabilizers
Vehicle placement and stabilizer deployment has to be \_\_\_\_\_ and efficient during emergencies. A. timely B. slow C. calm D. rushed
A. timely
Vehicle placement and stabilizer deployment has to be timely and efficient during emergencies; if personnel are available, a \_\_\_\_ effort helps to ensure this. A. single man B. team C. working D. quick
B. team
The goal of placement and stabilization is _ move and _ setup without repositioning.
1 and 1
Before the deployment of stabilizers, drivers should conduct some \_\_\_\_\_\_\_ checks. A. pre B. basic C. preliminary D. cross
C. preliminary
Before the deployment of stabilizers, drivers should conduct some preliminary checks. First they need to make the following QUICK observations to avoid potential problems: (3)
1. If not already automatically accomplished, activate the _____ brake lock to minimize longitudinal movement of the chassis.
A. back
B. air
C. total
D. front
D. front
Before the deployment of stabilizers, drivers should conduct some preliminary checks. First they need to make the following QUICK observations to avoid potential problems: (3)
2. Make sure the ___ engagement light is lit before leaving the cab.
PTO
Before the deployment of stabilizers, drivers should conduct some preliminary checks. First they need to make the following QUICK observations to avoid potential problems: (3)
3. c___ the wheels - follow _ _ _s and m_______ recommendations as to which wheels to do this to.
- chock
- SOPs
- manufacturers
Before the deployment of stabilizers, chock the wheels according to SOPs and manufacturer recommendations (for which wheels to chock). Regardless of which wheels, they should be chocked in f____ of and b____ the tire, on both s____ of the apparatus, with approximately an inch of extra space for the apparatus to move without causing a wheel chock to become stuck under the tire.
- front
- behind
- sides
Before the deployment of stabilizers, chock the wheels according to SOPs and manufacturer recommendations (for which wheels to chock). Regardless of which wheels, they should be chocked in front of and back the tire, on both sides of the apparatus, with approximately \_\_\_\_\_ of extra space for the apparatus to move without causing a wheel chock to become stuck under the tire. A. 1 inch B. 1 foot C. 3 inches D. 1/2 inch
A. 1 inch
Regardless of which wheels, they should be chocked in front of and back the tire, on both sides of the apparatus, with approximately 1 inch of extra space for the apparatus to move without causing a wheel chock to become stuck under the tire. After lifting the apparatus should you maintain this space by moving the chocks? WHY or WHY NOT
YES, so when you bring the apparatus down, the chocks do not get stuck and you have to lift it again
Before the deployment of stabilizers, chock the wheels according to SOPs and manufacturer recommendations (for which wheels to chock). If using \_\_\_\_\_\_\_ type of chocks, it is critical that they are locked and properly deployed. A. wood B. collapsible C. plastic D. metal
B. collapsible
While setting up for stabilization and after chocking the wheels, the driver should anticipate the expected travel p___ of the stabilizers as they deploy to be sure that they do not strike or land on other ob_____.
- path
- objects
Other vehicles, utility poles, hoselines, fences, signs and others personnel operating on the scene are all WHAT that drivers of aerials should be looking for when setting up for stabilization.
obstructions
You can use a short pike pole, closet hook or arm span to estimate the travel path of WHAT on an aerial?
stabilizers
WHO can help the driver of the aerial assist with positioning the apparatus to avoid curbs, manholes, vehicles, and so forth when setting up for stabilization? A. spotter B. officer C. observer D. all of the above
A. spotter
With proper apparatus positioning, any fixed o_____ will be clear of the stabilizers.
object
Position a second firefighter in the area of stabilizer deployment to keep people away from the stabilizer \_\_\_\_\_\_\_ zone. A. deployment B. contact C. working D. outbound
B. contact
