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70 Cards in this Set
- Front
- Back
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Max load before overload alarm will sound
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5oolbs.
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How do we ground aerial generators?
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There is currently no way to ground aerial generators.
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Formula for Watts
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Volts x Amps
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If you use a cord over ____ft you need to increase the gauge of the cord used.
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100ft
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12 gauge cord is rated at ____amps
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20amps
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14 gauge cord is rated at ____amps
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15amps
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True/False:
Each outlet is connected to a separate breaker. |
True
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Name 4 safety factors to consider during aerial operations
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- Fire building condition
- Angle/ location of apparatus - Wind/ weather conditions - Electrical lines/overhead obs |
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Normal aerial hydraulic pressure
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2500 psi
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Maximum aerial hydraulic pressure
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5000 psi
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What is the jack shaft?
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It is like the drive shaft but shorter. It drives the hydraulic pump.
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What is the max speed with the interlock differential on?
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15 mph
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There are as many as ___ air tanks on aerials
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6
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5 considerations when placing outriggers
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- look for firm and dry ground
- watch for manhole covers - underground parking lots - storm drains - elevated sidewalks |
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Keep ladder a minimum of ____ft from power lines.
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Keep ladder a minimum of 10ft from power lines.
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What is the scrub surface?
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Maximum area on the building that can be covered by the aerial.
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difference between real height vs. rated height
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The rated height includes the height of the truck. The real height can be shorter depending on how the ladder is placed in relation to the truck body.
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When used for roof access the aerial should be extended ____ft above the roof.
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When used for roof access the aerial should be extended 6 ft above the roof.
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When possible, position the truck at what angle in relation to the fire building?
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Position the truck at a right angle to the fire building.
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How much water weight does a 500gpm master stream inject into a building every minute?
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2 Tons
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True/False
It is OK for personnel to go up on an aerial during a fire without an SCBA. |
False
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Names some causes of stress on an aerial.
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- Excessive angles - Wind reaction
- Non-parrallel positions -Improper operation - Length of extension - Heat exposure - Nozzle reaction - Impact w/building - Weight and movement - Improper stabilization |
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Using the aerial in a position _________ to the chassis is the safest position.
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Using the aerial in a position longitudinal to the chassis is the safest position.
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What is the most stressful position for an aerial to be put in?
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A low/right angle
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How long of a run can you do with an electrical cord before you need to increase the gauge?
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100'
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number of cables used to control aerial.
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2
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safety factor of aerial ladder
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8:1
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Aerial apparatus operate at full capacity with a side slope of what?
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0-3.5%
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Aerial apparatus operate at 50% capacity with a side slope of what?
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3.5 - 5.5%
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what psi should ground be able to hold for outriggers to be safely placed?
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75psi
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TRADE |
Training resource and data exchange program |
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Scrub surface |
Max area that can be covered |
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Five floors or less Park ladder |
Outside of engine |
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Five floors or more |
Park inside of engine |
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Hey Ariel should be extended how many feet above wall/ parapet |
6ft |
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What position applies the worst stress for Ariel's |
Right angle long & low ext. |
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What is the best position for Ariel stress |
Inline/longitude to chassis |
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2 groups of aerials |
Ariel & elevating platforms |
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Ladders must have a rated vertical height of |
50ft |
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Hydraulic system components (3) |
Hydraulic pump cylinders hydraulic motors( electric or mechanical are required) |
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2 NFPA 1901 requirements |
2 or more ladder sections Constructed of metal, steel, heat treated aluminum |
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Support beams are what type of construction |
Triangular truss construction |
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Ladder rung specs |
14" apart on center 1 1/4" diameter 500lb minimum load 18" @ narrowest point |
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What is a minimum rated capacity at the tip of the fly section fully extended |
250lbs |
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Tfd Platform rated capacity |
1000 pounds in any position while flowing a 1000gpm |
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TFD rated capacity for aerials |
500gpm and any position while flowing 1000gpm |
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Aerials 110 feet or less must |
Rotate 90° fully elevated & extended In less than 120sec |
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Safety aspects of platforms |
Leveling system 14sq ft floor space No opening greater then24" 2 gates below top railing 4 inch kick plate at floor level 1/4 drain in kick plate Heat protective Shield 75gpm water curtain 400 cu ft air systems for 2 people |
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What is the hydraulic system range/capacity |
850-3000psi |
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What are Ariel cables made of |
Aircraft type plow steel |
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What is the safety ratio for cables |
4:1 safety ratio |
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What do velocity fuses do |
Keeps areal in position if hydraulic system fails |
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How can you tell if a velocity fuse malfunctions |
Ariel will be crooked or operate slowly |
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What type of cylinders are on Ariel's |
20 year k-bottles: tested annually |
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T/f You always want to cantilever areil? |
True |
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What is the most critical aspect of preparing in aerial |
Stabilizing |
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Pads increase the weight distribution buy a factor of what |
4 |
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Most a prices are capable of caring a full load up to what percent grade |
6% |
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Most manufacturers allow operations in winds up ____mph |
35-40mph |
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Side to side slope of___reduces load capacity by ___ |
3.5-5.5° , 50% |
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Front to back slope of ___reduces load capacity by___ |
5.5-6.5° , 50% |
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Wait limits in the operators manual are establish for winds up to |
50mph |
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T/f Always am ladder hi and lower to victim |
True |
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____Loads are the worst forces exerting on aerials |
Torsional loads |
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What do we lubricate the bottom and sides of the glides on the Ariel flies |
Food grade grease |
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What type of Greece do we use for Zerk fittings |
Extreme pressure 2(EP-2) |
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What do we lubricate cables with |
Silicone spray |
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How long is a warranty for Ariel ladders |
20 yrs |
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Quint 17 shop # |
8756 |
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When do we lubricate the Ariel's |
End of the month |
