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50 Cards in this Set
- Front
- Back
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when using an in-line e-ductor, the back pressure must not exceed BLANK pressure. |
65-75 percent of the inlet |
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Which statement about foam is true |
It works by seperating, cooling, or suppressing |
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if the foam concentrate inlet to the e-ductor is too high |
foam may not be inducted |
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A foam proportioner is the: |
device that injects the correct amount of foam concentrate into the water |
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Low energy foam systems use BLANK to impart pressure to the foam solution. |
a fire pump |
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When using hose lines above ground level, the usual pressure calculation is to add BLANK p.s.i. for each story of the building. |
5 |
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Hydraulic systems for aerial devices use relief valves to... |
prevent damage due to over pressurization |
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Standard methods of power take off engagement include electronically controlled and ... |
pneumatically operated |
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Applying grease to exposed sliding surfaces is effective in preventing... |
immediate ice adhesion |
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Which is a destructive aerial device testing procedure? |
Load |
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Which is designed to prevent unintentional or undesirable motion in an aerial device from its set position? |
counter-balance valve |
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All elevating platforms must have a minimum load capacity of BLANK when the aerial device is fully extended, at any elevation within its normal range of motion, and with no water in the piping system. |
750 pounds |
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BLANK tests include manufacturer's test, aerial device certification tests, and acceptance tests. |
preservice |
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A firefighter stepping onto an aerial device from a roof would be a BLANK load. |
impact |
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In a hydraulic system, BLANK start, stop, regulate, and direct the flow of fluid to control pressure. |
valves |
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When operating the aerial device from the ground control station, you must be standing on... |
an anti-electrocution platform |
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When the pressure is released on the stabilization system, the apparatus often drops... |
quickly |
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When positioning an aerial apparatus, the proper distance to set up from the fire building is when |
maximum stability and best climbing angle are achieved |
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When an aerial apparatus must operate on an incline, you can reduce these stresses by... |
spotting the turntable downhill fron the point of operation. |
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The stability of aerial apparatus is increased if you position the apparatus body... |
in a line with the expected position of aerial use. |
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If the building is less than BLANK stories, the aerial apparatus may be positioned outside the pumpers. |
5 |
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Whenever possible, aerial apparatus used at buildings five stories or higher should be positioned... |
closest to the structure |
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In a rescue situation, the objective is to... |
reach as many victims as possible |
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When moving victims down aerial ladders... |
infants and children may be cradled down. |
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The working height of an aerial ladder is measured from the... |
ground to the highest ladder rung |
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When identifying the working height of an aerial ladder, it should be in a postion of BLANK extension. |
maximum elevation |
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Low air temperature results in BLANK viscosity of the hydraulic. |
increased |
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Which portion on the articultaing device should you be particularly concerned with during operations at low elevations? |
knuckle |
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A means to judge appropraite deployment of stabilizers is when... |
the bulge is removed from the tires |
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The purpose of any aerial apparatus stabilizer/ outrigger system is... |
widening the apparatus chasis |
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When deploying manual style stabilizers/ outriggers, the jack must be lowered until the... |
jack rests firmly on the jack pads |
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The center of gravity on an aerial apparatus... |
shifts as the aerial device is rotated |
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Most manufacturers recommend that the BLANK stabilizer be lowered first when operating on a slope. |
uphill |
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Which is true with regard to stabilizing aerial apparatus? |
the base of stability is effectively increased by the deployment of the outriggers |
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A hot-shift Power Take-Off system can be engaged when the main transmission is in... |
neutral |
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When lowering to the bedded position, you must... |
assure that the aerial is properly aligned. |
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Which is the most difficult and risky aerial ladder rescue techniques? |
over-the-shoulder carry |
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What are the two primary areas of concern and focus on articulating platforms? |
Articulating elbow / working end |
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The easiest method to remove a victim in a stokes basket is to... |
slide it down the ladder |
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Before bedding an aerial device used for master stream operations, you must... |
drain water from the system |
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Most aerial ladder failures or apparatus overturning incidents occur due to... |
overloading of the ladder and / or over-extension at low angles. |
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The series of motions that include elevating, rotating, extending, and lowering the aerial device to its target is... |
raising |
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What is an indicator of mechanical trouble with the aerial device? |
drifting of the aerial device when raised |
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Engaging which aerial device locks is a particularly important step in making the aerial ladder a rigid structure? |
extension locks |
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The safest time to attrach the ladder pipe and make hose connections is when the device... |
is still in the bedded position |
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The use of auxiliary hydraulic pumps on aerial devices should be limited to... |
bedding the aerial device after a main system failure occurs. |
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It is usually a good practice to set adjustable master stream nozzles to the BLANK when not in use. |
fog stream pattern |
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Water adds weight to a fire building at the rate of BLANK per minute for every 250 g.p.m applied. |
2,000 pounds |
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Jacknifing occurs when the trailer and cab are... |
less than a 90 degree angle to one another while in motion or static |
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The area of the trailer that is blind to the tractor driver is... |
forward of the tailboard wheels up to the turntable on the outside of the turn |
