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Engineer 2022 > Ladder Manual > Flashcards

Ladder Manual Flashcards

1
Q

Aerial reach

A

Will extend to 107’ at 75 degree angle

100’ horizontally

Aerial will go 77 degrees above horizontal

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2
Q

The Ariel has the capability of going () below horizontal, and () below horizontal when manipulating stabilizers.

A

5 degrees and 15 degrees

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3
Q

Coupled with the nozzles ability to be pointed upward at a () angle allows for a blitz attack

A

30 degree

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4
Q

System that will prevent the aerial from being rotated to the side where the stabilizer is not fully deployed or when short jacked

A

Rotation interlock system

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5
Q

To restrict ladder movement when system hydraulic pressure is not present

A

Holding valve cartridges

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6
Q

Ladder has a safety factor of

A

2:1

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7
Q

A “stabilizers not stowed stowed” indicator light is located

A

In the drivers compartment

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8
Q

As a safety feature the jack cylinders are equipped with

A

Integral holding valves that will hold the cylinder in place should a hydraulic line become severed

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9
Q

Hydraulic system pressure gauge

A

System standby (bias) pressure is 350 PSI.

(+/-10 PSI)

Max system pressure is 3000

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10
Q

NFPA order for aerial controls

A

Extend Right Lower

Retract Left Raise

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11
Q

Four special emergency functions

A

Override switch
Emergency hydraulic power
Aerial/stabilizer emergency power
Electrical failure operations

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12
Q

Override switch

A

Is used to bypass all safety interlocks

Except emergency stop button

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13
Q

Manual override stabilizer controls

A

Are only found on the engineers side of the ladder behind a fold down door

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14
Q

Aerial/stabilizer emergency hydraulic power switch

A

Is used when the apparatus has a total catastrophic failure.

Will activate the electric backup pump when engaged

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15
Q

Manual override aerial controls

A

Located on the turn table inside the aerial control tower. Behind a hatch that flips down.

An alarm will sound when the hatch is open and turned off when hatch is closed.

When using the manual override aerial controls, the collision avoidance system is deactivated.

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16
Q

Collision avoidance system

A

Newer tiller ladders

Will stop aerial movement if you attempt to move the aerial into a position where it would contact other parts of the apparatus

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17
Q

Lubricating the exterior of the ladder pipe should be done

A

Using a light coat of automatic transmission fluid

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18
Q

Communication systems

A

3 separate communication systems

Intercom system at the tip and turntable console, push to talk switch to talk to the tip

Headphones

1 Beep = stop

2 beeps = go

3 beeps = backup

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19
Q

Listed reasons why an aerial may need to be raised

A 
Ladder pipe operations
Elevated rescue 
Elevated ventilation 
Egress for interior crews 
Gain access to upper levels 
Used as an exterior standpipe 
Special rescue situations 
Overhead scene lighting
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20
Q

Jack placement considerations

A

Avoid manhole covers and storm drains

Concrete is better than asphalt

Undisturbed earth (not sand)

Avoid underground parking facilities

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21
Q

Power line considerations

A

Aerial should maintain at least 20’ clearance from power lines and 50’ clearance from high voltage power lines

High voltage power lines can arc to the aerial

Do NOT run the aerial between wires

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22
Q

At full ladder height expect to flow

A

180 PSI

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23
Q

If unable to level apparatus within the green range, you may setup within the yellow range.

A

The device can be operated at 50% capacity

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24
Q

The aerial is only rated for

A

750 lbs

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25
Q

Victim priorities

A
  1. Fire room victim or directly next to fire room
  2. Directly above fire room
  3. others on fire floor
  4. top floor
  5. descending order from top floor
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26
Q

When the hose roller is used in conjunction with hose

A

It should be placed on the last rung of the aerial to protect hose from abrasion

27
Q

When the hose roller is used in conjunction with rope operations it should NOT be attached to the last rung. It should be attached

A

A minimum of 1 rung from the last.

28
Q

The capacity of the lyfe pulley system is

A

500 pounds OR the remaining tip load, whichever is lower.

29
Q

Ladder trucks carry pike poles ranging in size from

A

8’ to 16’

30
Q

Hydra ram

A

12 lbs

Maximum thrust opening: 4”

Designed to be used by 1 FF to force inward swinging doors.

31
Q

Set back is

A

The distance measured from the fan to the opening

32
Q

A PPV fan placed at the proper setback distance creates a

A

“Cone of air” sealing the positive pressure entry point

33
Q

When using PPV

A

The exit opening should be smaller than the entry opening

Windows are better than doors

34
Q

24” Supervac gas fan

A

CFM’s: approximately 21,000
Set back is 6’
Straight gas only
24” gas fan is most powerful fan used by JFRD
newer models have a 10’ exhaust extension with heat shield

97 dbA@7m
134lbs
120 min avg run time

35
Q

18” Ram fan

A

CFM’s: approximately 10,000

Setback is 14’

A/C or D/C
110 AC or (2) 40 volt battery DC power

20 min run time (will vary based on battery health)

36
Q

18” tempest electric fan

A

A/C only

CFM’s: 12,000

Set back is 8’

37
Q

Bunky braces purpose

A

Is for basic stabilization

JFRD created the bunky brace in-house

38
Q

Rescue 42 telecrib junior

A

Working load: 5000 lbs
(2:1 Safety factor)

Length 41” collapsed/69” extended

Weight 30lbs

39
Q

ADZ - tool or A-tool

K-tool

A

Passive forcible entry or through the lock.

Specifically the rim lock

40
Q

Onboard high pressure cascade

A

Max PSI 300

Rated capacity 6000 PSI

Old style is a 4500 PSI system, make connection is smaller than female connection and will need an adapter

41
Q

Adjustable tripods

42
Q

Drop down nozzle

A

26’

Red line marks 5’ from the male coupling

150 PSI PDP, 550 GPM, 36’ diameter

43
Q

Inverter

A

43’ long

Can be used to run hurst eDraulic tools of A/C power

AC/DC inverter is not compatible with strong arm

44
Q

10’ folding/Attic ladder

A

Weight limit: 300lbs

45
Q

If ground ladders are exposed to heat greater than

A

300 degrees, heat indicators will turn black and the ladders should be taken out of service

46
Q

All roof and extension ladders are rated at

A

Weight limit: 750 lbs

47
Q

eDraulic ram

A

53” fully extended

48
Q

eDraulic cutters

A

8” cutter opening

49
Q

eDraulic Spreaders

A

28” spreading distance

50
Q

Cutting () with a diamond blade can cause kickback

51
Q

Sharpen the diamond tip blade by cutting in a soft material such as

A

Sandstone or brick

52
Q

Husqvarna K970 / Rescue saw (K12)

A

5” max cut depth

14” max blade diameter

(50:1) mixed fuel

Adjustable blade guard

53
Q

VES ladder

A

7’

Shortened roof ladder

Used for access to first story windows on trailers of off grade houses

Weight limited not tested

Access from parapet to roof

54
Q

Combination ladder

(Little giant)

A

17’ max height

Weight limit 300 lbs

55
Q

A ground ladder placed for roof access should extend

A

3 to 5 rungs above the roof line

56
Q

35’ extension ladder

A

20’ bedded

57
Q

28’ extension ladder

A

16’ bedded

58
Q

24’ extension ladder

A

14’ bedded

59
Q

Top gun air chisel

A

Operating pressure is 90-200 PSI

Initial starting pressure 150 PSI

60
Q

Air controller

A

Pop off valve that will activate at 145 PSI

61
Q

Steeper air chisel

A

Equipped with regulator preset to 300 PSI for use with air bottle

Adjust on board system accordingly if using steeper

62
Q

On scene of a multi story structure, the 1st ground ladder should be placed

A

On the C side (Charlie side, or rear of structure)

63
Q

eDraulic strong arm

A

Cutters/door tips

Spread

    - 8.5” with combination tips 
    - 7” with door opener tips

Designed to work in heat and smoke

Will cut up to 3/8” rebar, 2” X 4” wood, and grade 43 chain

Engineer 2022 (5 decks)

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