Ladder Manual Flashcards
(183 cards)
1
Q
Aerial reach :
How many sections and made of what?
It will extend to what height at what degrees?
The aerial will go to what degree above horizontal?
A
- 4 sections; steel
- 107’ above ground at 75°
- 100’ horizontal at 0°
- 77° above horizontal
2
Q
The tip of the aerial has how many lb. capacity dry at full extension? Wet?
A
- 750lbs. dry
* 500lbs. wet
3
Q
Tiller ladder has a flow capacity of ?
A
Up to 1,000 GPM with Automatic fog nozzle or smooth bore nozzle
4
Q
It is capable of discharging how many GPM at what PSI in any position in how many mph winds?
A
- 1000 GPM at 100 PSI
* 50 mph
5
Q
What is max. flow rating on automatic fog nozzles on end of JFRDs ladder trucks?
A
2,000 GPM
6
Q
The aerial has the capability of going how many degrees below horizontal? How?
A
- 5° below horizontal adjusting the stabilizers
* 15° below horizontal when manipulating stabilizers and the aerial
7
Q
Nozzle is able to point upward at what degree angle?
A
30°
8
Q
Tiller Ladder spec :
Height -
Length -
GVWR -
A
• 11ft. 1.19in.
• 58ft. 7.5in.
• 73,300lbs.
36.65 tons
9
Q
The ladder has a safety factor of ?
Based on?
A
- 2 to 1 (2:1)
* rated load
10
Q
What does the LEVEL ASSIST switch do?
A
Controls the stabilizer level assist feature
11
Q
How many emergency stop buttons are located on the ladder? Where? How do you deactivate the function?
A
- (3) total emergency stop buttons located on the ladder
- (1) located at each lower control station (1 on each side of all ladders) and (1) located at the turntable control console
- twist the button clockwise to deactivate this function
12
Q
Where is air horn button located?
A
On turn table control console
13
Q
Manual controls for nozzle ?
A
Hand wheel on top - up/down
Hand wheel on bottom/side - left/right
14
Q
Older hydraulic system pressure gauge :
This gauge indicates the hydraulic pressure available to operate the aerial. The system standby (bias) pressure is ___.
The max system pressure is ___.
A
- 350 PSI (+/-10psi)
* 3000 PSI
15
Q
Aerial controls :
A
Extend Right Lower
Retract Left Raise
16
Q
The Pierce 107’ Ascendant Tiller Ladder is equipped with how many special emergency ladder functions?
What are they?
A
• 4
- OVERRIDE switch
- EMERGENCY HYDRAULIC POWER switch
- AERIAL/STABILIZER EMERGENCY POWER switch, the MANUAL OVERRIDE STABILIZER CONTROLS, and MANUAL OVERRIDE AERIAL CONTROLS
- Electrical failure operations : using the MANUAL OVERRIDE STABILIZER CONTROLS, and MANUAL OVERRIDE AERIAL CONTROLS ONLY
17
Q
What is the override switch used for?
A
Used to bypass ALL safety interlocks (except for the emergency stop button)
18
Q
Where are the manual override stabilizers controls found?
A
Engineers side of ladder behind a fold down door
19
Q
The AERIAL/STABILIZER EMERGENCY POWER switch will activate what?
When is it used?
A
• The electric backup pump
• when the apparatus has a total catastrophic failure
(The aerial master and hydraulic pump are not working and more than likely the truck will not be running)
20
Q
Where are the manual override aerial controls located?
A
On the turntable inside the aerial control tower
21
Q
When’s should the EPU be used?
A
When the main system hydraulic pump is not operating
22
Q
The EPU can run continuously for how long? If you need to run the EPU longer than it’s limit, how long should you let it cook down before using again?
A
- 30 mins.
* 30 mins.
23
Q
How many batteries does the ladder truck have? How many batteries does the EPU use?
A
- 6
* 1
24
Q
If the electronic system has failed and the manual aerial or stabilizer controls are being used, what is the only switch that will be active?
A
The EPU Switch located at the manual stabilizer controls will be the only one active (emergency hydraulic power switch)
25
What is the telescoping waterway itself constructed of? Sizes in the base section, lower/mid section, upper/mid section, and in the fly section?
* anodized aluminum tubing
* 4.5 in. diameter
* 4.0 in.
* 3.5 in.
* 3.0 in.
26
The aerial is capable of discharging ___GPM at ___PSI parallel to the ladder and ___° to each side of center
* 1000 GPM
* 100 PSI
* 90°
27
What is the adjustable pressure relief valve preset to?
250 PSI
28
The waterway seals are what type?
| They will withstand pressures and temps of?
* Type-B PolyPak design
* up to 2000 PSI
* in excess of 250°F
29
What should be used to lubricate the exterior of the ladder pipe?
Lite coat of automatic transmission fluid
30
How many separate communication systems is the ladder truck equipped with? What are they?
* 3
* intercom
* headphones
* audible alarm (buzzer) “beeps”
31
Alarm (buzzer) switch :
1 beep =
2 beeps =
3 beeps =
* STOP
* GO
* BACKUP
32
The GEN PTO (power take off) provides power for ?
(2) cord reels, tiller cab A/C, and other functions
33
Rear wheel position indicator gauge :
| Gauge will read where when ladder truck is turned off
All the way to the left
34
Position ladder with the following in mind : (5)
* aerial placement
* intended use
* expected progression of the fire
* width needed for jack deployment
* overhead wires
35
The most Advantageous Location for spotting the ladder truck will be determined by what?
The situation and where the aerial will have the greatest impact on the fire scene
36
For the tiller ladder, how should you angle the tractor and tiller cab to help gain a greater amount of aerial clearance at lower floors?
Angling the tractor and tiller cab away from the involved structure
37
For the tower ladder, how should you angle the cab to allow for a greater amount of aerial clearance?
Angling the cab away from the involved structure
38
For the straight stick rear mount, how should you position to provide the greatest amount of aerial clearance?
Backing into the structure
39
Reasons aerial may need to be raised : (8)
* ladder pipe operations
* elevated rescues
* elevated ventilation
* egress for interior crews
* gain access to upper levels
* used as an exterior standpipe
* special rescue situations
* overhead scene lighting
40
Do not raise aerial unless what?
The ladder truck is spotted properly for its intended use
41
A fully extended stabilizer goes out how far from the side of the ladder?
Approx. 5’
42
The aerial should maintain at least __’ clearance from power lines and __’ clearance from high voltage power lines.
* 20’
| * 50’
43
What is the scrub area?
The area that can be reached by the aerial
44
What is one of the goals when the ladder truck arrives on scene?
To achieve the largest scrub area possible
45
The tiller ladder with the aerial fully retracted needs a min. setback of ___’ from the side of the ladder truck to the tip of the aerial. This distance is with the aerial positioned what degree angle/elevation?
* 30’ (roughly 15 paces)
| * 90 degree angle 0 degree elevation
46
Setting up the aerial : (7)
1. Spot the ladder truck
2. Place the ladder truck in neutral and set parking break
3. Engage the AERIAL MASTER and the front wheel lock
4. Place the wheel chalks in appropriate position
5. Deploy the ground pads, set stabilizers, and insert the safety pins into the stabilizers
6. Move the fifth-wheel interlock lever from in line with the ladder to perpendicular to the ladder truck
7. The aerial can now be operated from the turn table
47
Where is front wheel lock on older tiller ladders?
By the engineers left knee when seated
48
In Fire mode, the nozzle is pinned to what section of aerial? Rescue mode?
* 4th (fly) section
| * 3rd (upper mid) section
49
In Fire mode, what position is the lever in?
| Rescue mode?
* fire mode - lever pointing towards tip
| * rescue mode - lever pointing away from tip
50
When supplying a ladder pipe within 100’, what is the recommended initial PDP?
At full ladder height?
Do not exceed ?
* 150 PSI (any nozzle)
* 180 PSI
* 200 PSI
51
Aerial Akron Automatic Fog Nozzle :
| GPM -
500-2000 GPM
Do not attempt to flow more than
1000 GPM. Tower ladders are only exception to the 1,000 GPM limitation
52
Smooth bore nozzle :
| What size stream shaper?
3 1/2” to 2 1/2” stream shaper
53
The total tiller ladder stabilizer spread is ___ via 1 set of H style stabilizers.
17’
54
If either the Grade or Slope apparatus angle indicators are outside the green range but still within the yellow range, what capacity can the device be operated?
50% (half) capacity
55
Jack knife warning light colors :
Green -
Amber -
Red -
* 0°-30°
* 30°-60°
* >60°
56
When to raise the aerial : (8)
* ladder pipe operations (defensive)
* elevated rescues
* elevated ventilation
* egress for interior crews
* gain access to upper levels
* used as an exterior standpipe
* special rescue situations
* overhead scene lighting
57
Where are the fly section steps?
* at the top of the 3rd (upper mid) section
| * top of the 4th (fly) section
58
When placing the aerial to the roof for access, how many rungs should extend above the roof line?
At least 3 to 5 rungs above the roof line (more if possible) and turn on scene lighting
59
When placing the aerial to a window for access, where should you place it?
Place it at the window sill or just below it
60
The aerial is only rated for how many lbs?
750lbs
61
Victim priorities :
| 1-5
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 the top floor down
62
If there is not an immediate need to rescue a victim via a ground ladder, where should 1st ground ladder be placed?
C side (Charlie) = rear of the structure
63
All roof and extension ladders are rated for ?
750lbs
64
If ground ladders are exposed to what temp, the indicators will turn what color?
Greater than 300°F; black
65
Tiller ladders ground ladder compliment :
* 2 - 35’ extension ladder
* 2 - 28’ extension ladder
* 2 - 20’ roof ladder
* 2 - 16’ roof ladder
* 1 - 14’ roof ladder
* 2 - attic ladder
* combination ladder (little giant)
66
How long is 28’ extension ladder bedded?
| 35’?
* 16’ bedded
| * 20’ bedded
67
What is max height and weight for little giant ladder?
17’ and 300lbs
68
How tall is VES ladder?
Approx. 7’
69
Normal compliment of power saws carried by JFRD ladders?
* (2) chainsaws
* (2) rescue saws
* (1) reciprocating saw
70
Rescue saw brand?
Max. depth of cut?
Max. blade diameter?
Fuel?
* Husqvarna K970/Rescue Saw (K12)
* approx. 5”
* 14”
* mixed gas (ratio 50:1)
71
Where is decompression valve on newer saws? Older saws?
* on top
| * on side near pull handle
72
What is the D-Ax blade/carbide tipped blade used to cut?
Light gauge metal, wood, and roofing material
73
Which blade is more prone to kickback, if not used properly?
Carbide tipped blades
74
What does diamond blade cut?
Concrete, masonry, metal, plastic, wood, rebar, copper, glass block, windshields, auto parts, tile, aluminum, stainless steel, corrugated roof, and everything else
75
How can you sharpen diamond blade?
By cutting in a soft material such as sandstone or brick
76
When dry cutting (with diamond blade) how often should you lift blade out and for how long to prevent overheating?
* 30-60 seconds
| * 10 seconds
77
Reciprocating saw voltage?
Dewalt 20 Volt
78
When the hose roller is used in conjunction with hose, what runs should it be on? With rope?
* last rung
| * min. of 1 rung from last
79
What is the capacity of the Lyfe Pulley System?
500 pounds OR the remaining tip load, whichever is lower
80
Ladder trucks carry pike poles ranging in sizes ?
8’ to 16’
81
Hydra Ram :
Weight -
Max. thrust opening -
* 12lbs
| * 4”
82
JFRD carries how many different types of ventilation fans? What are they?
* 3
* gas powered
* electric (A/C)
* electric and battery operated (A/C & D/C)
83
How effective a fan moves air is measured how?
In CFMs (cubic feet per minute)
84
When is CFM measured?
At full power
85
What is a way to estimate if the cone of air is being properly placed into the opening?
By standing between the fan and the opening
86
When using PPV, what size should the exit opening be? The entry opening?
The exit opening should be smaller than the entry opening (windows are better than doors)
87
Only attempt to clear how many rooms at a time?
1-2
88
```
24” Supervac Gas Fan :
CFMS -
Set back -
How many lbs -
Average run time -
```
* approx. 21,000 CFMs (20920cfm)
* set back 6’
* 134lbs/61kg
* 120mins
89
```
18” Ram Fan :
CFMs -
Set back -
AC and DC -
Run time -
```
* CFMs - approx. 10,000
* set back - 14’
* 110 AC and (2) 40 volt battery DC
* approx. 20min
90
18” Tempest Electric Fan :
CFMs -
Set back -
* CFMs - 12,000
| * set back - 8’
91
Spreaders distance -
Cutters opening -
Ram fully extended -
* 28”
* 8”
* 53”
92
Strong arm :
Spread -
What will it cut -
• approx. 8.5” with combination tip
• approx. 7” with door opener tip
3/8” rebar, 2” x 4” wood, and grade 43 chain
93
Hurst tool inverter specs :
• 43’ AC/DC uses AC power
94
Purpose of Bunky Brace’s?
Basic stabilization
95
```
Rescue 42 Telecrib Junior :
Working load -
Safety factor -
Length -
Weight -
```
* 5000lbs
* 2:1 safety factor
* 41” collapsed; 69” extended
* 30lbs.
96
What is Adz-Tool specifically used for?
Passive forcible entry or through the lock. Specifically the Rim Lock
97
What is K-Tool used for, specifically?
Passive forcible entry or through the lock. Specifically the Rim Lock
98
Generator PTO (power take off) :
How many watts ?
Recommended generator operations?
If the demand is higher, what should you do?
* 3.6 KW (3600 watt) hydraulic generator
* 80% of the rated capacity (2880 watts)
* turn off tiller cab AC
99
```
Watts :
Tiller cab AC -
Edraulics AC adapter -
Sump pump -
Ram fan -
Tempest fan -
Halogen portable light -
LED portable light -
```
* 2400
* 2000
* 800
* 600
* 600
* 500
* 220
100
How long are cord reels?
300’
101
Junction box :
* (4) 15 AMP twist lock plugs
| * (4) 110 Volt plugs
102
RIT bag consists of :
```
• (1) 60 minute SCBA bottle
• (2) trans-fill lines
(One) 3’
(One) 15’ to 25’ (varies)
• (1) SCBA face piece attached to a regulator and on some setups (1) 3’ buddy breathing port line
```
103
Other things commonly found in RIT bag?
* webbing
* pickoff strap
* triple XXX
104
Older style RIT rope :
Length -
Knots and rings -
* 130’ - 140’
* 1 in, 2 out
* rings every 20 feet
105
Newer style RIT rope :
Length -
Ring and knots -
* 220’
* ring every 10’
* 1 in, 2 out
106
Length of retractable search rope?
25’
107
Extrication equipment : (5)
* chains
* high lift jack
* cribbing
* j-hooks
* come-a-longs
108
Barnes portable submersible pump :
HP/Volt -
Power cord length -
At what depth and approx GPM -
* .33HP, 120 Volt
* 20’ power cord with 19’ wire cord protection
* at depth 19’ pump approx. 50 GPM
109
```
Cellar Nozzle :
GPM at what PSI?
Initial PDP?
Max PDP?
Spray diameter?
```
* 500 GPM at 50 PSI
* 150 PSI initial PDP and 200 PSI max.
* 40’ spray diameter
110
How far apart should you place cellar nozzles?
Approx. 20’ apart
111
```
How long is section of hose of drop down nozzle?
How large is hose?
Where is red mark?
PSI?
GPM?
Diameter?
```
* 26’ section of 2.5” hose
* 6” wide, red line marks 5’ from male end of hose
* drop down nozzle connected to the 3.5” to 2.5” stream shaper that is used with the smooth bore nozzle at end of ladder pipe
* 150 PSI - 550 GPM ; 36’ diameter
112
Attic Nozzle :
Lengths?
PSI/GPM
* two lengths of 1 1/2” aluminum pipe (6’ and 2’), a 1 1/2” x 2 1/2” increaser and a standard 2 1/2” play pipe. Some ladders may use a 1 1/2” nozzle
* 150 GPM at 100 PSI
113
How tall are portable LED lights tripod?
Up to 12’ tall
114
What should be attached to the litter/stokes basket at all times while in use?
Tag line
115
On board cascade system max. pressure?
Rated capacity?
If you attempt to refill the onboard system and the male connection is smaller than the female connection on the compressor, what have you encountered?
* 300 PSI
* 6000 PSI
* 4500 PSI onboard system (old style)
116
Two air chisels normally found in JFRD ladder trucks ?
| Operating pressures?
* top gun and streeper
* top gun - 90-200 PSI; initial starting pressure set on board cascade to 150 PSI
* streeper - 300 PSI preset regulator for use with SCBA bottle
117
```
Air bags :
Max air pressure -
Lifting capacity -
Max height -
How is lifting capacity determined?
Safety zone -
```
* max. pressure 118 PSI
* length x width x 100 = lifting capacity
* bag will lift its capacity 1”. Bag will lift 1/2 of its rated capacity its max. height. Max. height = half the width of the bag
* lifting capacity of the bag if determined by its contact surface area
* 45 degrees from the most likely direction of travel
118
Air controller :
| At what PSI does pop off valve activate?
145 PSI
119
Ladder engineer duties and responsibilities : (7)
* power secured
* gas is shutoff
* water is shutoff
* ladder placed in the ___ side window
* ladder placed on the ___ side of roof (for primary and/or secondary egress)
* burglar bars removed on the ___ side
* back door is open
120
Task that may need to be completed but NOT communicated over the radio : (3)
* placing an attic ladder near the front door
* placing a fan near the structure
* shutting down the fan
121
The valve used to shut off residence is what type?
Quarter-turn valve
122
Basic parts of an electrical service : (6)
1. Electrical drop
2. Weather head
3. Conduit bringing power from the weather head to the meter
4. Meter
5. Main breaker
6. Electrical panel
123
Power pulling bag : (6)
* (2) JEA tools
* flathead screwdriver
* wire cutters
* meter covers “pie plates”
* light
* flashlight
124
What size Allen wrench could also be used to remove certain locks?
7/32”
125
The electrical hazards associated with solar panels are going to be related to what type of power?
D/C power
126
MultiRAE & MultiRAE Lite : (6)
* oxygen - OXY
* lower explosive limit - LEL
* carbon monoxide - CO
* hydrogen sulfide - H2S
* volatile organic compounds - VOC
* hydrogen cyanide - HCN
127
The aerial is equipped with what system that will prevent the aerial from being rotated to the side where the stabilizer is not fully deployed or when short-jacked?
Rotation interlock system
128
The ladder is equipped with what to restrict ladder movement when system hydraulic pressure is not present?
Holding valve cartridges
129
Another name for the high idle switch?
| What does it do?
* Aerial speed switch
| * energized the engine high idle circuit to take the engine to a preset rpm. Allows the aerial to be operated faster
130
When will stabilizer warning alarm deactivate?
When all stabilizers are in the load support position
131
Pushing the level assist into what position causes the stabilizer jacks to initially level the apparatus within the limits of the system?
Down
132
How are turntable working lights activated?
By aerial master switch
133
Tip tracking lights switch : when activated, the switch energizes what?
The spot lights located on each side of the ladder tip and lower tracking lights
134
When the emergency stop button is depressed, where do red lights illuminate?
At each of the lower control stations and a warning will appear in the lower right hand corner of the touch screen at the turntable
135
Electric nozzle controls -
Stream Right Raise
| Fog Left Lower
136
When should EPU be used?
When main system hydraulic pump is not operating
137
Doing what will allow for more efficient use of the EPU?
Limiting loads and pressures; it will also generate less heat
138
Each type of ladder truck, requires different spotting considerations. Why?
Where their turntables are located and how long their aerials are
139
In normal situations, at residential fires, how should a straight stick rear mount ladder position?
Placing the turn table in line with desired area and angling the cab away from the structure will provide the needed amount of clearance
140
The expected progression of Fire is determined by many variables : (5)
* Wind
* Building construction
* Size of fire
* Size of structure
* Exposures
141
Jack placement considerations : (4)
* Avoid manhole covers
* Concrete is better than asphalt
* Undisturbed earth (not sand)
* Avoid underground parking facilities
142
What is setback?
Distance from the working side of the ladder truck to the building
143
Which ladder truck has a check valve?
Tower ladder
144
Cribbing should never be what height? (Under jacks)
Taller than twice the width of the cribbing base
145
This 50% capacity condition is only safe if the apparatus is leveled within the limits shown in what?
The Load Chart and Level Chart Information of the Pierce Manual
146
Leveling Tiller Apparatus on Level Terrain steps : (5)
1. Lower each jack until the on-ground indicator is illuminated
2. Lower each jack further until the apparatus angle indicator as show that the apparatus is within the safe level range in slope and grade
3. The rear tractor axle tires can be on OR off the ground as long as the on ground indicators are illuminated
4. Move the fifth wheel lock out control lever to the LOCKED position
5. Observe the fifth wheel lock out control lever to make sure the retaining latch will hold the lever in the LOCKED position
147
Wheel chock placement – Tiller on level ground :
* Front wheel chock behind tires
| * Back wheel chock in front of tires
148
If the jackknife audible alarm stops, what should you do?
STOP the ladder truck. Have a spotter get out of the ladder truck to help insure a jackknife does not occur
149
What is critical when spotting the ladder truck?
A slow approach with deliberate spotting
150
The Aerial Speed Switch should be placed on what when approaching structures and while firefighters are on the aerial?
Normal
151
Ladders length bedded :
24’ -
28’ -
35’ -
* 14’
* 16’
* 20’
152
Ground ladder selection consideration : (3)
* What is the ground ladder going to be used for (rescue, egress, access, roof work, etc)?
* How tall is each floor (commercial vs. residential)?
* Is the structure off grade?
153
K12 startup procedure :
```
• Ensure the blade is secure
• Ensure there is fuel (mixed)
• Ensure stop switch is pushed forward (red)
- Decompress the decompression valve
- Pull choke out (blue)
- Pull cord and hear it turn over
- Press choke in (blue)
- Depress the decompression valve
- Pull handle again
• Saw should start
```
154
An overheated blade (Diamond) is the result of?
Improper use
155
When setting the fan for PPV, what is crucial?
Ensuring proper set back
156
A PPV fan placed at the proper setback distance creates what?
“Come of air”
157
Where are the PTO switch(es)?
| What do they do?
* There are (2) redundant switches, (1) at each engineer driving position to turn on the generator PTO
* Turning this on will send power from the generator PTO to the onboard breaker panel
158
What is the special purge button on the RIT back facepiece also called?
What does it do?
* “Soft start switch”
| * Causes the regulator to free flow
159
What two ways can the purge valve be used?
To stop free flow?
1. Clear the mask of smoke after donning it on the victim
2. If the downed FF is unable to breathe deeply enough to engage the second stage regulator
• Press the bottom button on the regulator
160
Every JFRD ladder truck Carrie’s what appliance?
A 2 1/2” x 2 1/2” gated wye
161
According to NFPA 1983 a ladder belt is -
“ intended for use as a positioning device for a person on a ladder.”
162
The ladder is equipped with holding valve cartridges and a rotational brake to restrict what and when?
Ladder movement when the system hydraulic pressure is not present
163
What does the tip tracking light switch do?
When activated, the switch energizes the spot lights located on each side of the ladder tip and the lower tracking lights
164
What does the ladder illumination switch do?
Turns on the blue lights that run length if the aerial
165
What does the water flow gauge display?
Indicates gallons per minute (GPM) flowing. When flowing water, the intake pressure will also be displayed directly below it
166
When the nozzle deployed/fault indicator light is lit, what does that mean? What color is the light?
Indicator is lit, the nozzle is in the fully stowed position (orange light on as in the picture) The indicator goes out whenever the nozzle is moved from the stowed posirion
167
On older tiller ladders, what does the water flow gauge display selector button do?
When pressed, it changes the water flow gauge display from gallons per minute (GPM) to total gallons consumed.
168
When is the AERIAL/STABILIZER EMERGENCY POWER switch used?
When the apparatus has a total catastrophic failure. This means the Aerial Master and the hydraulic pump are not working and more than likely the truck will not be running because it may have suffered a failure as well
169
Using the Manual Override Aerial controls requires you to do what?
Override the ladders built in safety controls
170
Aerial Override Controls :
PUSH -
PULL -
* RETRACT • CCW • RAISE
| * EXTEND • CW • LOWER
171
Doing what will allow for more efficient use of the EPU and will also do what?
Limiting loads and pressures; and will also generate less heat
172
Tractor Cab controls (dashboard) :
| Left to right -
* aerial master
* tillerman not seated
* lockout cylinder not engaged
* stabilizer not stowed
* front wheel lock
* perimeter lights
* courtesy lights
173
Tractor Cab Controls (above front windshield) :
| Left to right -
* Emergency master
* front scene
* ds scene
* ps scene
* rear scene
* cornering scene
* gen PTO
* gen PTO engaged
174
The expected progression of the fire is determined by many variables such as :
* Wind
* Building construction
* Size of the fire
* Size of the structure
* Exposures
175
The scrub area will differ depending on numerous factors :
* Type of ladder truck
* Setback from the building
* Obstructions
* Spotting the ladder and/or other apparatus
176
Which laddertype has a check valve?
Tower ladder
177
The only way for the aerial to move to the short jacked side is to use ?
The Aerial Override Controls
178
Ground pads are placed on the ground under the jacks and used to do what?
Dissipate the weight and footprint of the vertical jack
179
When the Ladder’s Aerial Master switch is engaged, what is turned off?
The jackknife warning light turns off
180
When the ladder is close to jackknifing, what will happen?
An audible alarm will sound and a red light in the cab will flash as a warning when the ladder is close to jackknifing
181
Steps for using Hydra-Ram :
1. Insert the jaws of the tool between the door and door jam
2. Operate the hand pump (the jaws will begin to open) until the door is opened
3. To close the jaw, press and hold the release. Pressure may need to be applied to the jaw for it to close
182
When setting up the fan for PPV, what is crucial?
Ensuring proper set back
183
Each fan has an ideal set back based on?
The manufacturers specifications and the size of the opening through which air is introduced
