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
Large rocks, fire hose, tools, underground utility access covers and broken pavement are things a driver should MOVE to ensure the stabilizer \_\_\_\_\_\_\_ contact areas are as stable as possible. A. base B. pad C. shoe D. all of the above
C. shoe
If you need to use cribbing to supplement stabilizer effectiveness, you should follow dept. _ _ _s and m________ recommendations.
- SOPs
- manufacturer
If you need to use cribbing to supplement stabilizer effectiveness, you should follow dept. SOPs and manufacturer recommendations. The material must be of adequate s___ and str_____ to withstand the load imposed by the a_______ apparatus.
- size
- strength
- aerial
If you need to use cribbing to supplement stabilizer effectiveness, you should follow dept. SOPs and manufacturer recommendations. The material must be of adequate size and strength to withstand the load imposed by the aerial apparatus. The driver must ensure proper pl_____ of cribbing to preclude sl______ from underneath the stabilizer pads OR shoe.
- placement
- slipping
If you need to use cribbing to supplement stabilizer effectiveness, you should follow dept. SOPs and manufacturer recommendations. The material must be of adequate size and strength to withstand the load imposed by the aerial apparatus. The driver must ensure proper placement of cribbing to preclude slipping from underneath the stabilizer pads OR shoe. Cribbing should only be used as a ______ resort and by those with proper ins_______ and t_______ to use it!
- last
- instruction
- training
Should you place stabilizers over drainage areas, underground tanks or vaults and utility access zones? YES or NO
NO
Once the driver has success with preliminary activities and the ground is prepared for stabilization activities, the \_\_\_\_\_\_\_ valve may be operated. A. closing B. back C. check D. selector
D. selector
This valve is used to send hydraulic power to the stabilizers or switched to the aerial.
selector
The selector valve is either located on the r___ step or mid____ on the driver’s side of the apparatus.
- rear
- midship
The physical operation of the valve varies and depends on the __________.
manufacturer
According to the manufacturer's directions, the selector valve controls should be clearly marked as to the proper \_\_\_\_\_\_\_\_\_ for each operation. A. position B. location C. limit D. speed
A. position
What is called the outrigger, jack or leveling position? A. backing position B. stabilization position C. motion position D. all of the above
B. stabilization position
On some makes of apparatus, operation of the selector valve automatically releases the aerial device bed LOCKS. TRUE or FALSE
TRUE
When the selector valve control has been moved to the proper position, the apparatus is ready for s_________ to begin.
stabilization
What kind of terrain is the IDEAL location to stabilize an aerial? A. rocky B. uneven C. even D. soft soil
C. even
Even \_\_\_\_\_\_\_ allows for the maximum stability of the apparatus and for the greatest range of safe movement of the aerial device. A. soil B. rocks C. pavement D. terrain
D. terrain
Where would you TYPICALLY find the stabilization controls on an aerial?
rear step
Do some manufacturers locate the stabilization controls midship on one or both sides of the aerial? YES or NO
YES
Generally, how many sets of controls are there for each stabilizer on an aerial?
1
The driver must only operate one control for the stabilizers on an aerial at a time. TRUE or FALSE
FALSE - they can operate more than one at a time
Before operating stabilizer controls, drivers should be aware of these general principles: (4)
1. Many of the controls are LEVER-type valves that move up and down about ___ degrees
A. 90
B. 160
C. 40
D. 25
A. 90
Before operating stabilizer controls, drivers should be aware of these general principles: (4)
2. operating these controls au_________ regulate engine idle speed. A _____ (fast/slow?) -idle toggle switch or ______ (automatic/manual?) throttle control may also regulate engine idle speed. This provides the power necessary to perform the desired action.
- automatic
- fast
- manual
Before operating stabilizer controls, drivers should be aware of these general principles: (4)
3. when the driver operates the controls, an _______ (increase/decrease?) in engine speed occurs. (noticeable due to the ________ (increase/decrease?) of the sound level)
- increase
- increase
Before operating stabilizer controls, drivers should be aware of these general principles: (4)
4. Avoid _____ or _____ operations of the valves. Operation of the valves also affects the vehicle’s engine speed.
A. smooth, swift
B. rough, jerky
C. clean, swift
D. hard, jerky
B. rough, jerky
What kind of stabilizers are basically two-part devices? A. X-style B. box C. H D. both B and C
D. both B and C
On some apparatus with box stabilizers, the aerial device WILL raise when the extension arms are NOT fully extended. TRUE or FALSE
FALSE - aerial will not raise unless the extension arms are fully extended.
When using box stabilizers, when the extension arms have been extended to their final position/maximum travel distance, the portable stabilizer \_\_\_\_\_ should be centered beneath the stabilizer shoes so that they will be in position when the jacks are lowered. A. ports B. bottoms C. pads D. sensors
C. pads
Stabilizer pads are usually provided by the manufacturer of the apparatus and are usually \_\_ x \_\_ inches with built in handles. A. 12 x 12 B. 12 x 24 C. 20 x 20 D. 24 x 24
D. 24 x 24
As the stabilizer are being lowered, the driver should look at the contact area to be certain WHAT are properly positioned?
pads
When operating stabilizers on level ground, you should always lower the right side first. TRUE or FALSE
FALSE, you can lower either first
WHOS guidelines should you follow to determine when the stabilizers are properly deployed?
manufacturer’s
Due to the potential for \_\_\_\_\_ and \_\_\_\_\_ damage, one stabilizer on an aerial should never be fully activated alone. A. chassis, torque box B. stabilizer, shoe C. stabilizer, pad D. chassis, shoe
A. chassis, torque box
Always activate the stabilizers in a multi-step, side-to-side OR front to back process. TRUE or FALSE
TRUE
In a four-jack system, operate the stabilizers in \_\_\_\_\_\_\_. A. sync B. parallel C. order D. the same fashion
B. parallel
When the stabilizers have made contact with the ground, the driver should alternate between s____ to raise the vehicle to its w_____ position, as close to l______ as possible.
- sides
- working
- level
Some fire dept. use this procedure to lower the stabilizers into working position:
- lower jacks, side A to point where stabilizer begins to bear ______ weight.
- lower jacks, side B to point where stabilizers begin to bear _____ weight
- continue on side B lowering to half the remaining intended ex________
- return to side A, lower jacks to intended ex_______
- return to side B, lower jacks to intended ex_______
- chassis
- chassis
- extension
- extension
- extension
When the jacks are fully extended, the apparatus should be l_____ and ready for op_______ of the aerial device.
- level
- operation
Refer to the owner's \_\_\_\_\_\_\_\_\_ for the amount an aerial should be raised with the stabilizers. A. paperwork B. blueprint C. registration D. handbook
D. handbook
Some stabilizers are designed to lift all tires off the g______, some are designed to so all tires remain on the g______ and some to only lift the ______ (front/rear?) tires.
- ground
- ground
- rear
Repetitive full deployment on one side and then the other in a two step process of deploying stabilizers can cause cumulative damage to tires/wheels, axles, suspension, torque box and chassis. TRUE or FALSE
TRUE
Should all stabilizers be in FIRM contact with the ground and bear weight? YES or NO
YES
Once proper stabilization has been achieved, some apparatus may have a \_\_\_\_\_ interlock that automatically engages. A. safety B. manual C. reverse D. none of the above
A. safety
Are fulcrum-type stabilizers that extend straight down similar box-type stabilizers? YES or NO
YES
The primary difference between the fulcrum-type stabilizers (A-frame, scissor, x-style) and the box-type stabilizers (H-jack, H-stabilizer) is that the operator can only deploy the fulcrum-type in the fully extended position and not-at all if \_\_\_\_\_\_\_\_\_ are present. A. people B. obstructions C. vehicles D. unstable ground
B. obstructions
How close should fulcrum stabilizers be lowered to the ground prior to placement of the stabilizer pads to allow for correct placement of the pads? A. 10 inches B. several inches C. few inches D. 5 inches
C. few inches
Some designs of apparatus allow for the partial extension of the stabilizer arms and is sometimes called.... A. uneven stabilization B. longitudinal jacking C. device grade D. short-jacking
D. short-jacking
What side should you be extending the aerial device over:
short-jacked side
or
fully extended stability arms side
fully extended stability arm side
If you do not extend the extension arms of the stabilizers to their maximum position, the load and range of safe movement capabilities significantly ________ (increases/decreases?).
decreases
Whenever possible, a \_\_\_\_\_\_ officer should observe aerial operations when short-jacking is in use. A. safety B. operations C. company D. engine
A. safety
Waterway operations should be conducted with caution in short-jacking situations because the n_______ reaction actually transfers weight to the _______ (same/opposite?) side from which the aerial device is being operated.
- nozzle
- opposite
There are 2 ways a truck can be uneven: \_\_\_\_\_ (side to side) and \_\_\_\_\_\_\_\_\_\_ (end to end). A. parallel, longitudinally B. laterally, longitudinally C. parallel, laterally D. longitudinally, parallel
B. laterally, longitudinally
There are 2 ways a truck can be uneven: laterally (side to side) and longitudinally (end to end). Which one is easier to correct?
lateral unevenness
Correction of lateral unevenness is possible on grades of up to \_\_ percent (app. 3 degrees), but vary depending on the aerial device. (some older trucks may be much less than this) A. 6 B. 7 C. 5 D. 10
C. 5
If you have a slope of 5% it means that there is a rise in terrain height of _ feet for every run of \_\_\_\_ feet distance. A. 5, 50 B. 10, 100 C. 5, 10 D. 5, 100
D. 5, 100
Most manufacturers recommend lowering the stabilizers on the _______ (uphill/downhill?) side of the vehicle first (but some may say the opposite).
uphill
Most manufacturers recommend lowering the stabilizers on the UPHILL side of the vehicle first (but some may say the opposite). The stabilizers should be lowered ONLY until \_\_\_\_\_ contact with the ground is made. A. solid B. complete C. light D. close
A. solid
Most manufacturers recommend lowering the stabilizers on the UPHILL side of the vehicle first (but some may say the opposite). The stabilizers should be lowered ONLY until solid contact with the ground is made. Lower the _____hill side stabilizers until they raise the downhill side of the truck level with the ___hill side.
- downhill
- uphill
Most manufacturers recommend lowering the stabilizers on the UPHILL side of the vehicle first (but some may say the opposite). The stabilizers should be lowered ONLY until solid contact with the ground is made. Lower the downhill side stabilizers until they raise the downhill side of the truck level with the uphill side. Make sure you raise the truck enough to activate the \_\_\_\_\_\_\_\_\_, if the apparatus is so equipped. A. brakes B. interlocks C. hydraulic system D. all of the above
B. interlocks
Make sure you raise the truck enough to activate the interlocks, if the apparatus is so equipped. (stabilizers) If the interlocks have not activated, it will be necessary to raise ______ (both/one?) side of the truck until they do.
both
On a lateral grade, and after the aerial device is stabilized, it is preferable to operate the aerial device over the ________ (uphill/downhill?) side of the apparatus.
uphill/high
If you have to operate the aerial over the downhill side of a lateral grade, consider lessening the amount of aerial device ex______ and loading, based on manufacturers recommendations.
extension
Beware of stabilizer \_\_\_\_\_\_\_ on any type of grade or uneven surfaces, which is dangerous and may occur on wet, icy, or snowy surfaces or when the controls are no operated smoothly. A. braking B. emergencies C. slippage D. retraction
C. slippage
On a longitudinal (end to end) grade, if the aerial turntable is not level, the rungs of the aerial device will not be exactly p_____ to the ground if the device is positioned over the s____ of the apparatus.
- parallel
- side
On a longitudinal (end to end) grade, if the aerial turntable is not level, the rungs of the aerial device will not be exactly parallel to the ground if the device is positioned over the side of the apparatus. This will generate lateral and torsional s______ within the structure of the aerial device when it is raised and cause ff to be unsteady while working on it.
stresses
On a longitudinal (end to end) grade, if the aerial turntable is not level, the rungs of the aerial device will not be exactly parallel to the ground if the device is positioned over the side of the apparatus. This will generate lateral and torsional stresses within the structure of the aerial device when it is raised and cause ff to be unsteady while working on it. = destructive to the _________ and very dangerous to ________ working on or around it.
- ladder
- fire fighters
Consult the manufacturers instructions for particular apparatus to determine their maximum longitudinal g______. (because each one has different requirements)
grade
Unless the situation is unavoidable, no not place the apparatus crosswise on a longitudinal grade. TRUE or FALSE
TRUE
On a longitudinal grade, use the stabilizers to l____ the apparatus as much as possible and operate the ARTICULATING device off the r____.
- level
- rear
When a pre- \_\_\_\_ (or non-K-braced) apparatus is parked on a longitudinal grade outside of the manufacturer's recommended operating range, do not extend or retract the aerial device over the side of the apparatus. A. 1980 B. 1999 C. 1981 D. 1991
D. 1991
Check with WHOs requirements for aerial device loading on GRADES?
manufacturer’s
Check with manufacturer's requirements for aerial device loading on GRADES. MOST have restricted loads when operating on grades, some as much as \_\_\_\_\_ the normal load, and if in the red zone (unsafe load), do not operate the aerial device. A. 1/2 B. 25% C. 1/3 D. 45%
A. 1/2
Check with manufacturer’s requirements for aerial device loading on GRADES. MOST have restricted loads when operating on grades, some as much as 1/2 the normal load, and if in the _____ (green/red?) zone (unsafe load), do not operate the aerial device.
red
The driver should always place stabilizers on curbs, sidewalks, parking lots, water valve covers or other similar obstructions. TRUE or FALSE
TRUE
\_\_\_\_\_ cause unnecessary unevenness of the stabilizers. A. pads B. curbs C. rocks D. gravel
B. curbs
Some concrete construction is not reinforced with _______, so do not place the stabilizers on it.
rebar
Stabilizing on unstable surfaces for an aerial should be treated the same as setting up on a \_\_\_\_\_\_\_ incline. A. hilly B. rocky C. lateral D. longitudinal
C. lateral
Stabilizing on unstable surfaces for an aerial should be treated the same as setting up on a lateral incline. Lateral incline l______ and ext______ restrictions also apply.
- load
- extension
For stabilization, unpaved roadways, sand or gravel should be av_________.
avoided
Objects that are already damaged or weakened are good candidates for the weight AND the stress that the aerial will put on them. TRUE or FALSE
FALSE - ARE NOT
What should you do instead of deploying the stabilizers on an unsafe OR potentially unsafe surface?
reposition the apparatus
Icy patches and frozen ground are potential _______ areas in cold weather when a driver is setting up for stability on an aerial.
problem
Avoid ice when stabilizing because ice reduces the stabilizers ability to make \_\_\_\_\_ contact with the ground. A. quick B. hard C. good D. solid
D. solid
One effect of ice melting is the creation of an \_\_\_\_ gap between the stabilizer pad (the large auxiliary surface placed under the shoe) and the ground, compromising the stability of the rig. A. air B. water C. stream D. mud
A. air
The large auxiliary surface placed under the shoe of the stabilizer is also known as the…..
stabilizer pad
If the driver stabilizes on frozen ground, the must constantly do THIS to the stabilizers and prepare to lower them further to maximize contact with the ground.
monitor
If the driver stabilizes on frozen ground, the must constantly do monitor the stabilizers and prepare to _______ (lower/raise?) them further to_______ (maximize/minimize?) contact with the ground.
- lower
- maximize
When the ground is f______ solid and the surface is on an angle, the aerial device can m_____ or chatter along the surface due to the combo of vibrations and gravity.
- frozen
- move
When the ground is frozen solid and the surface is on an angle, the aerial device can move or \_\_\_\_\_\_ along the surface due to the combo of vibrations and gravity. A. slide B. chatter C. skid D. wobble
B. chatter
When the ground is frozen solid and the surface is on an angle, the aerial device can move or chatter along the surface due to the combo of vibrations and gravity. Drivers can prevent this by doing what to the wheels?
chocking
When the ground is frozen solid and the surface is on an angle, the aerial device can move or chatter along the surface due to the combo of vibrations and gravity. Sand or other friction enhancing products can be carried aboard to assist in secure \_\_\_\_\_\_ of the stabilizers. A. stoppage B. extension C. planting D. proping
C. planting
Sand or other friction enhancing products can be carried aboard to assist in secure planting of the stabilizers. Use salt as well. FALSE
FALSE - do NOT use salt
Do not use salt to assist in secure planting of the stabilizers on frozen solid ground or snow because it may…..
melt the ice and snow
Once the stabilizers are fully deployed, there is no need to ensure that they are locked and will stay in place. TRUE or FALSE
FALSE - you must be sure
Once the stabilizers are fully deployed, you must ensure that they are locked and will stay in place. On most aerials, the combo of the in______ feature of the selector valve and the hy_____ system holding valves provide automatic locking capabilities.
- interlock
- hydraulic
Once the stabilizers are fully deployed, you must ensure that they are locked and will stay in place. On most aerials, the combo of the interlock feature of the selector valve and the hydraulic system holding valves provide automatic locking capabilities.The \_\_\_\_\_\_\_ prevents the flow of hydraulic fluid into or out of the stabilization system while the aerial device is in use. A. locking B. brake C. valves D. interlock
D. interlock
Once the stabilizers are fully deployed, you must ensure that they are locked and will stay in place. On most aerials, the combo of the interlock feature of the selector valve and the hydraulic system holding valves provide automatic locking capabilities.The interlock prevents the flow of hydraulic fluid into or out of the stabilization system while the aerial device is in use. The holding valves prevent the movement of the fluid within the \_\_\_\_\_\_\_\_\_ system. A. stabilization B. hydraulic C. electrical D. transmission
A. stabilization
The driver activates the holding valves when stabilizing by moving the selector switch to the ______ position.
aerial
The driver activates the holding valves when stabilizing by moving the selector switch to the aerial position. On some OLDER rigs, it may be necessary to set the holding valves BY operating the stabilizer controls \_\_\_\_\_ in each direction after moving the selector valve to the aerial position. A. twice B. once C. half way D. many times
B. once
Many newer rigs are equipped with an indicator ______ that shows when the interlocks are engaged after stabilizing.
light
Many newer rigs are equipped with an indicator light that shows when the interlocks are engaged after stabilizing. The apparatus might also be equipped with a \_\_\_\_\_ gauge level that allows the driver to easily determine if the apparatus has been raised \_\_\_\_\_\_\_. A. lit, stabilized B. pressure, evenly C. site, evenly D. cab, high enough
C. site, evenly
What type of stabilizers commonly have a series of holes drilled through the bottom post of the elevating jack designed for the insertion of large steel pins that act as an additional safeguard against inadvertent dropping or drifting of the jack.
box-type stabilizers
Box-type stabilizers commonly have a series of holes drilled through the bottom post of the elevating jack designed for the insertion of large steel pins that act as an additional safeguard against inadvertent dropping or \_\_\_\_\_\_\_ of the jack. A. moving B. directing C. sliding D. drifting
D. drifting
When the transfer of hydraulic power from the stabilizers to the aerial operation system is complete, (either automatic or with the movement of a switch) the driver is ready to mount the t____table and operate the a_____ device.
- turn
- aerial
When pressure releases from the stabilization system, the apparatus often \_\_\_\_\_ very quickly. Stand clear to avoid being struck by moving parts or being injured as the apparatus resettles. A. drops B. moves C. jumps D. slides
A. drops
Whether on level or uneven ground, should the driver always raise the stabilizers following the reverse order by which they were deployed? YES or NO
YES
Whether on level or uneven ground, driver should always raise the stabilizers following the reverse order by which they were deployed. Doing this avoids undue \_\_\_\_\_\_\_ on any components of the aerial. A. damage B. stress C. working D. punctures
B. stress
What are the pins made of that prevent inadvertent dropping or drifting of the jacks and should always be inserted if equipped?
steel
Once the raising of the stabilizers is complete, return the selector valve to the _________ (off, neutral?) position and _________ (disengage/engage?) the PTO system. Return the pads their appropriate storage location.
- neutral
- disengage
Some ______ pieces of apparatus still in service may be equipped with manual stabilizers.
older
Older midship AND tractor-drawn aerials are most likely to have hydraulic OR manual stabilizers?
manual
What type of stabilizers are similar to box-type hydraulic stabilizers and consist of an extension arm that has a screw jack attached to the end of the arm?
manual stabilizers
The primary difference between the box-type hydraulic stabilizers and the manual stabilizers is that the driver must \_\_\_\_\_\_ the extension arm into position manually and manually turn the screw jack attached to the arm to lower the stabilizer. A. push B. pull C. swing D. swivel
C. swing
The primary difference between the box-type hydraulic stabilizers and the manual stabilizers is that the driver must swing the extension arm into position manually and manually turn the \_\_\_\_\_\_\_ attached to the arm to lower the stabilizer. A. bolt B. stabilizer C. boot D. screw jack
D. screw jack
On midship aerials, the manual stabilizer extension arm is stored \_\_\_\_\_\_\_\_\_\_ to the ground. A. perpendicular B. parallel C. straight D. side ways
A. perpendicular
How to place manual midship stabilizer in service:
- release the ex______ arm pin that holds it in the vertical position
- lower the arm to the hor______ position
- reinsert the p__ through the extension beam AND arm
- position the stabilizer p____ under the jack
- turn the sc____ portion of the jack to lower it onto the plate/pad
- when the stabilizer sh___ rests firmly on the pad, repeat the process for the other side
- extension
- horizontal
- pin
- pad
- screw
- shoe
If the stabilizer lifts off the pad during aerial operations for a MANUAL stabilizer, do not adjust it. This is normal load shifting. TRUE or FALSE
TRUE
Because the suspension alone cannot support the OUTBOARD weight of an EXTENDED aerial device, effective ________ methods are used.
stabilization
Continually review the specifics of the stabilization system and its limitations by reviewing the ________ manual(s) and fire dept. procedures in the _ _ _s.
- operation
- SOPs
