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Driving Ops > Aerial Ladder > Flashcards

Aerial Ladder Flashcards

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1
Q

Ladder length

Retracted, extended , elevated

A

Retracted - 35.8
Extended - 105
Elevated - 110

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2
Q

Outriggers

A

Double box beam and jacks

Powered by double acting hydraulic cylinders.

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3
Q

Ladder degrees of elevation.

A

-5 to 75

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4
Q

Ladder pipe coupling

A

Electro hydraulic hydro swivel coupling

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5
Q

Ladder pipe material and diameter

A

Aluminum
5’ - 3.5. 4 sections
.5 reduction per section

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6
Q

Ladder rated flow and pressure

A

1000 gpm. Nominal 250

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7
Q

Rotation limiting system

A

Works with interlock system to prevent rotation to a side where outriggers are not fully deployed.

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8
Q

Personal on ladder distance apart

A

10 feet

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9
Q

Distance from electrical wiring or cable and trees

A

10 feet

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10
Q

Max wind allowed. / tested

A

Allowable wind 30 mph

Tested at 55

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11
Q

Ladder testing. How often.

A

Yearly or after subjected to undue stress.

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12
Q

Inspect all cables pulleys guides etc. …

A

Daily

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13
Q

Allowable grades of road

A

Up to 6% full capacity

6-14 50%

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14
Q

Ladder construction.

A

All steel u brace truss with k brace rungs

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15
Q

Fast idle rpm

A

1500-1600

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16
Q

Aerial elevation indicator degrees..,

A

-20 to 80

17
Q

Ladder sections

A

Base, inner mid, outer mid, fly

18
Q

Hydraulic reservoir location

A

Top of rig behind can’t side cab

19
Q

Most stable operation position

A

Off back up to 45 degrees off center line

20
Q

Slow idle rpm

A

600

21
Q

Apparatus leveling indicator

Degrees and capacities

A

Green 0-3. 100%
Yellow 3.5 - 8 50%
Red 8- 10. No operation

22
Q

Epu run times

A

3 minutes continuous

21 sec every 5 min

23
Q

Hydraulic oil three primary functions

A

Transmits power
Lubricates system
Cools unit.

24
Q

Ladder name

A

LTI AH 110 rear mount aerial.

25
Q

Tip load. Wet dry

A

750 dry

600 wet

26
Q

How often to operate epu

A

Every ten hours of continuous use

27
Q

Ladder pipe relief valve. Pressure and diameter

A

2.5

250 psi

28
Q

Max level of cribbing outriggers

A

2 levels

29
Q

Hydraulic fluid check

A

Daily inspection.

While cold and ladder stowed

30
Q

200 lb FF dropping 3 ft to a ladder causes __ of stress

A

700 lbs

31
Q

Three types of preserving testing

A

Manufacturers- FD not involved

Certification. - third party. UL

Acceptance. - FD performs or oversees before final acceptance.

32
Q

Counter balance valve

A

Designed to prevent undesirable motion of aerial ladder

33
Q

Actuator valve

A

Controls flow from areal to hydraulic cylinders.

34
Q

Trunnion

A

The pivoting end of the piston arm

35
Q

Stack valve

A

Multidirectional valve in aerial device

36
Q

Monitor valve

A

Multidirectional valve in hydraulic systems

Driving Ops (28 decks)

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