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JFRD Engineer's Exam > Ladder Manual > Flashcards

Ladder Manual Flashcards

1
Q

How many sections does the Pierce Tiller aerial have?

A

4

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2
Q

What is the reach of the Pierce Tiller aerial?

A

107’ above ground at 75 degrees
100’ horizontal at 0 degrees.
Aerial will go to 77 degrees above horizontal.

Note the extra 7’ in the vertical reach of the aerial versus the horizontal reach is attributed to the distance from the ground to the turntable.

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3
Q

Pierce Tiller aerial capacity.

A

750 Lb. Dry

500 Lb. Wet

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4
Q

Describe the tip of the the Pierce Tiller aerial.

A

Tip is red section at the end of the aerial. Consists of the last 2 rungs. Designed to “breakaway” as a safety feature to protect the rest of the ladder.

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5
Q

The Pierce Tiller ladder has a flow capacity of __________ GPM.

A

1,000

With an automatic fog nozzle or smooth bore nozzle.
Note- It is capable of discharging up to 1,000 GPM at 100 PSI in any position into a 50 MPH wind.

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6
Q

What is the maximum flow rating for the automatic nozzle on the end of JFRD’s ladder pipe? (Also applies to 2” smoothbore tip.)

A

2,000 GPM.

Note- Remember event though the nozzle is rated for 2,000 GPM, the ladder pipe itself is only rated for 1.000 GPM. (With the exception of tower ladders.) This is a discrepancy between the ladder & engineer manual. Engineer’s manual has 2” smoothbore rated for 1,000 GPM instead of 2,000.

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7
Q

The aerial has the capacity of going _____ below horizontal by adjusting the stabilizers.

A

5 degrees

Can be lowered to 15 degrees below horizontal by manipulating the stabilizers & the aerial.

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8
Q

Placing the ladder below horizontal coupled with the nozzle’s ability to be pointed upward at a 30 degree angle allows for a _________________ which is useful on strip malls, store fronts, garage doors, etc. - or some level of below grade access.

A

Blitz Attack

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9
Q

The aerial has a ______________________ that will prevent the aerial from being rotated to the side where the stabilizer is not fully deployed.

A

Rotation interlock system

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10
Q

The ladder is equipped with ____________________________ to restrict ladder movement when system hydraulic pressure is not present.

A

Holding valve cartridges & a rotational brake.

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11
Q

Overriding the rotational interlock system can lead to ___________the ladder truck.

A

Tipping

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12
Q

The ladder has a safety factor of _______ based on the rated load.

A

2:1

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13
Q

There is a lower control station located on each ___________ of the apparatus (Pierce Tiller) with all controls & indicators clearly identified.

A

Each side

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14
Q

Stabilizer electric controls are strategically located on each side of the apparatus so the operator has a __________ of the stabilizer being positioned.

A

Full view.

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15
Q

This is displayed on the touch screen of the turntable control console. It indicates the current GPM & the intake pressure when water is being flowed.

A

Water Flow Gauge

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16
Q

The Override Switch is used to bypass ALL safety interlocks except for the ___________________.

A

Emergency Stop Button.

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17
Q

(Turntable) console is (also) illuminated by work lights that are activated by the __________________ switch.

A

Aerial master

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18
Q

When the nozzle is in the fully stowed position, the orange _______________ will be lit.

A

Nozzle Deployed/ Fault Indicator Light

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19
Q

If there is not an immediate need to rescue a victim via a ground ladder, the 1st ground ladder should be placed on the _______________ .

A

C (Charlie) side or rear of the structure.

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20
Q

All roof & extension ladder are rated at ______________ lbs.

A

750

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21
Q

If ground ladders are exposed to heat greater than___________, the heat indicators will turn ____________ & the ladders should be taken out of service.

A

300 degrees F

Black

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22
Q

Weight limit of attic ladders.

A

300 Lbs

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23
Q

Tiller ladder compliment

A 
14’ roof ladder
16’ roof ladder X 2
20’ roof ladder X 2
28’ extension ladder X 2
35’ extension ladder X 2
Attic ladder X 2
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24
Q

Bedded lengths of extension ladders.

A 
24’ = 14’
28’ = 16’
35’ = 20’
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25
Q

A ground ladder being placed for roof access should extend __________ rungs above the roof line.

A

3-5

Note- This makes is easier for crew working on the roof to see the ladder & allows crews to get on & off the ladder with ease.

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26
Q

A ground ladder being placed to a window for rescue, access, and/or egress should be placed at the ____________ of the windowsill.

A

Bottom

Note- This will keep the window clear of obstruction.

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27
Q

Combination ladder (Little Giant) specs

A

Max height - 17’

Weight limit - 300 lbs

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28
Q

VES (Vent, Enter, Search) Ladder specs

A 
Shortened roof ladder
Access to 1st floor windows of off grade houses or mobile homes
Weight limit- not tested
Access from parapet to roof
Length- Approximately 7’
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29
Q

Normal JFRD saw compliment for ladders

A

2 chainsaws
2 rescue saws
1 reciprocating saw

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30
Q

Husqvarna K970 / Rescue Saw (K12) specs

A

Max depth cut - 5”
Max blade diameter - 14”
Fuel- mixed gas (ratio is 50:1)
Adjustable blade guard

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31
Q

D-Ax blade / Carbide tipped blade specs

A

Used to cut light gauge metal, wood, & roofing material
More prone to kickback than diamond tipped blades. Can also throw materials away from the blade.
Should never be used to cut wood in non-rescue situations.
Cannot be sharpened.

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32
Q

When using a diamond tipped blade, make sure it rotates in the direction indicated by the ________ on the blade.

A

Arrow

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33
Q

When dry-cutting (diamond blades), lift the blade out from the cut every ___________ seconds & let it rotate in the air for _________ seconds to let it cool.

A

30-60

10

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34
Q

Diamond blades can be sharpened by cutting in a soft material such as ___________________.

A

Sandstone or brick

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35
Q

The Sawzall (reciprocating saw) uses a _______ volt battery.

A

20

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36
Q

When the hose roller is used in conjunction with hose, it should be placed on the ___________ rung of the aerial to protect the hose from abrasion.

A

Last

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37
Q

When the hose roller is used with rope, it should not be attached to the last rung of the aerial. It should be attached a minimum of ________________.

A

1 rung from the last.

Note- This captures the rope between the last 2 rungs of the aerial for safety reasons.

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38
Q

Lyfe Pulley System capacity

A

500 Lbs or the remaining (aerial) tip load- whichever is lower.

39
Q

Ladder trucks caret pike poles ranging in size from ______________.

A

8’ - 16’

40
Q

Hydra-ram (rabbit tool) specs.

A

Weight - 12 Lbs
Maximum thrust opening- 4”
Designed for use by 1 firefighter to force inward swinging doors.

41
Q

JFRD carries _________ different types of ventilation fans.

A

3

Note- They are gas-powered, electric, & battery operated (AC/DC).

All fans are variable speed.

All JFRD can be used for both positive & negative pressure ventilation.

42
Q

How effective a fan moves air is measured in ________________. (Measured when the fan is at full power.

A

Cubic feet per minute (CFM)

43
Q

(Fan) setback is measure from the fan to the _______________.

A

Opening (door)

44
Q

When using PPV, the exit opening should be _______________ than the entry opening.

A

Smaller

Note- Windows are better than doors.

45
Q

Only attempt to clear ___________ at a time using PPV.

A

1-2

Note- Once the room is clear, close the door & then move to the next room. Avoid recirculation.

46
Q

24” Supervac fan specs

A

CFMs- approximately 21,000
Setback - 6’
Fuel- Straight gas only
Most powerful fan carried by JFRD.

Newer models have a removable 10’
Exhaust Extension System.

47
Q

18” Ram fan specs

A

CFMs - approximately 10,000
Set back - 14’
Powered by- Electricity of battery (AC/DC). 110 Volt AC or 2X 40 volt DC battery.
Battery run time- Approximately 20 minutes. Will vary based on battery health.

Note- in DC operation (battery), this fan must first “wake up”. Once the battery indicator light is on, it is awake & can be used.

48
Q

18” Tempest electric fan specs

A

CFMs- Approximately 12,000
Setback- 8’
Electric (A/C) only

49
Q

Applying a _____________ load and/or tip loading hydraulic cutters can lead to blade failure.

A

Torsional

50
Q

Strong Arm specs

A

Interchangeable tips- cutters, door tips
Spread- Approximately 8.5” with combination tips; 7” with door opener tips.
Will cut up to 3/8” rebar, 2X4” wood, and Grade 43 chain.

51
Q

JFRD Hurst tools are operated by rechargeable batteries. There is also a ____________(length) AC/DC Inverter that can be used to run the Hurst eDraulic tools using AC power.

A

43’

Note- This inverter is not compatible with the strong arm. The Strong Arm battery is not compatible with any other eDraulic tool carried by JFRD.

52
Q

Which eDraulic tool will not time out & turn itself off?

A

The Strong Arm

53
Q

Bunky braces are used in conjunction with ________ wood.

A

4X4

54
Q

Rescue Telecrib Junior specs

A

Working load- 5,000 Lbs
Safety factor- 2:1
Length- 41” collapsed; 69” extended
Weight- 30 lbs

55
Q

The Adz tool is using for passive forcible entry or through-the-lock. Specifically the _______________.

A

Rim Lock

56
Q

Ladder hydraulic generator PTO (power take off) specs.

A

3.6 KW (3600 watt)
Recommended generator operations should stay within 80% (2,880 watts) of the rated capacity.
2 redundant switches. 1 at each engineer position.

Note- If the demand (watts needed) is beyond the generator capacity, turn off the Tiller Cab A/C.

57
Q

The tiller ladder breaker panel is located inside the ___________ roll-up door on the engineer’s side of the tiller ladder.

A

1st

58
Q

Device equipment wattage (tiller/ladder)

A 
Tiller Cab AC -2,400
eDraulics A/C adapter - 2,000
Sump pump- 800
Ram fan- 600
Tempest fan- 600
Halogen portable light- 500
LED portable light- 220
59
Q

There are 2 ____________ cord reels located on the ladder.

A

300’

60
Q

300’ cord reel specs

A

Lighted junction box with:
4X - 15 Amp twist lock plugs
4X - 110 Volt plugs

61
Q

RIT bag specs

A

60 minute SCBA bottle with

(2) Transfill lines - 3’ & 15-25’ (varies)
SCBA face piece attached to a regulator & (on some setups) a 3’ buddy breathing line port.

Note- The regulator found on the RIT pack is slightly different than the one found on a normal SCBA. If has a special purge button (soft start switch) located on the center front of the regulator. When depressed, it will cause the air to free flow. Can be used to clear the mask of smoke or supply air to a firefighter who is not breathing on his own.

62
Q

Old Style RIT rope specs

A

Length = 130’-140’
Uses Knots & Rings & 1 In, 2 Out to help orient firefighters.
Metal rings - every 20’. One knot if added for each additional 20’

Example- there would be 3 knots after the 60’ ring.

Knots ALWAYS go after the rings & lead in toward the fire.

1= In
2= Out
63
Q

New Style RIT Rope specs

A

Length - 220’
Rings- every 10’.
1 knot after (toward the fire) the ring.
2 knots before (away from the fire) the ring.

Note- the only way to determine distance on the new style RIT ropes is to count the rings.

64
Q

25’ Retractable Search rope

A

Can be attached to ring or main RIT rope.
Has no rings or knots.
Allows searchers to cover a larger areas while still in contact with the main RIT rope.

65
Q

Used in packaging a downed firefighter without using the SCBA waist belt.

A

Pickoff strap

66
Q

Barnes Portable Submersible Pump

(Sump Pump) specs

A

Horsepower - .33
Volts- 120
Power cord- 20’ with 19’ wire cord protection.
At a depth of 19’ it can pump approximately 50 GPM.
Used for dewatering- Examples: basements, ships, upper floors of structures.
Fitted with 1 1/2 male thread.
There is no on/off switch. Turns on when plugged into power.

67
Q

Cellar Nozzle specs

A

GPM- 500 @ 50 PSI
Initial PDP- 150 PSI
Max operating pressure- 200 PSI
Spray diameter - 40’

Newer models have a permanent nozzle & control device.

Older models have interchangeable nozzles & no control device.

When using from the roof in lieu of trench cuts, nozzles should be placed 20’ apart.

68
Q

Drop Down Nozzle specs

A

Distributor nozzle attached to a 26’ section of 2 1/2”’hose.
6” wide red line marks 5’ from the male end.
Drop Down Nozzle is connected to the 3 1/2” to 2 1/2” stream shaper that is used with the smooth bore nozzle at the end of the ladder pipe.

At 150 PSI, the Drop Down Nozzle will provide 550 GPM and cover a 36’ diameter area.

69
Q

Adjustable ground/ scene lights tripod length.

A

12’

70
Q

A ___________ should be attached to the stokes basket at all times while in use.

A

Tag line

71
Q

How long are the two 1 1/2” aluminum pipes that accompany the attic nozzle?

A

2’ & 6’

72
Q

Attic nozzles flow approximately ___________ GPM at 100 PSI.

A

150

73
Q

JFRD ladder trucks are equipped with onboard high pressure cascade air systems which supplies (2) separate ____________ air hose reels.

A

300’

74
Q

300’ air hose reels are located on each side of the ladder truck behind the _________ roll up door.

A

2nd.

75
Q

Max air pressure for air hose reels on ladder truck.

A

300 PSI

Note- Using the regulators, the engineer can set the air pressure for each hose individually.

76
Q

Pierce Ascendant tiller ladders onboard cylinders have a rated capacity of ________________.

A

6,000 PSI

Note- If you attempt to refill the onboard system & the male connection is smaller than the female connection on the compressor, you have encountered a 4,500 PSI onboard system (old style) & an adapter is needed to refill the onboard system.

77
Q

Top Gun air chisels have an operating pressure of __________________.

A

90-200 PSI

Note- As an initial starting pressure, set the on board cascade system regulator to 150 PSI & adjust accordingly.

78
Q

The Streeper air chisel comes with a ____________ preset regulator for use with an SCBA bottle.

A

300 PSI

Note- If using the Streeper air chisel with the onboard cascade system, adjust the board regulator accordingly.

79
Q

Ladder trucks carry ________ air bags, a regulator, & a controller.

A

2

80
Q

Max air pressure for air bags.

Per JFRD ladder manual

A

118 PSI

81
Q

Formula for air bad lifting capacity.

A

Length of bag X Width of bag X 100 = Lifting capacity

82
Q

Airbag lifting capacity

A

Airbag will lift its capacity 1”
Will lift 1/2 of its capacity its max height.
Max height is half the width of the bag.
Bags should not be stacked more than 2 high.
The lifting capacity of the bag is determined by contact surface area.

83
Q

The pop out safety zone for airbags is ________ degrees from the most likely direction of travel.

A

45

84
Q

Air bag air controllers have a pop-off valve that will activate at _________ PSI.

A

145

85
Q

Air bag air controllers have 1 inlet & ________ outlets.

A

2

86
Q

_______________ companies will normally be assigned to elevator emergency calls.

A

Ladder

87
Q

Most commonly used elevator door keys.

A

Most common- Drop Key

2nd most common- Half Moon

88
Q

The valve used to shut off water to a residence will be a ___________ valve.

A

Quarter-turn

Note- A water main is not a quarter turn valve and will need to be turned multiple times depending on the size of the main.

89
Q

A 3-phase drop must be cut by _________.

A

JEA

90
Q

A size _________ Allen wrench can be used to remove some meter box covers.

A

7/32”

91
Q

The 1/4 valve used to turn off a gas meter.

A

Petcock

92
Q

MultiRaes detect the following.

A 
Oxygen
Lower explosive limits (LEL)
Carbon Monoxide
Hydrogen Sulfide
Volatile Organic Compounds
Hydrogen Cyanide
93
Q

The ladder is capable of discharging up to 1,000 GPM at 100 PSI with the nozzle in any direction in a ________.wind.

A

50 MPH

JFRD Engineer's Exam (10 decks)

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