19 - IFSTA Chapter 19 Flashcards
1
Q
What NFPA standard describes the requirements for ladder belts and tethers?
A
1983
2
Q
When do personnel not necessarily need to be anchored to a structual part of the ladder or platform?
A
Any time they are operating off the ladder
3
Q
What type of hazard is created when wire rope comes close to or contact otjer mechanical parts?
A
Pinch
4
Q
Which is not a command fiven to the aerial operator?
A
Lift
5
Q
Which of the following is not a responsibility of the primary control position?
A
Be belted in position to protect against abrupt of unexpected ladder movement
6
Q
Any time there is a firefighter operating at the secondary control position, there must be:
A
A trained aerial operator at the primary controls
7
Q
The four series of motions of rasing the aerial device are:
A
Elevating, rotating, extending, lowering
8
Q
What order should the aerial device be moved?
A
Elevated, rotated, extended, lowered
9
Q
All movements of the aerial must be slow, smooth and controlled, also known as:
A
Feathering
10
Q
What is the prefered method to operate the nozzle on a master stream from an aerial device?
A
Remote control box/wireless
11
Q
How many firefighters should be on the top fly of the aerial ladder when changing the stream pattern?
A
1
12
Q
What may result if sudden pressure changes should occur?
A
Shock loading and ladder sway
13
Q
How many degrees should the areal device be elevated, extended to what percentage of it’s length and what should the nozzle pressure on a smooth bore should be no more than what?
A
75, 80, 80
14
Q
What is the limit of ice accumulation allowed by NFPA 1901?
A
1/4”
15
Q
Which NFPA establishes static load requirments that an aerial apparatus must meet when operating on a grade?
A
1901
16
Q
Which NFPA provides guidance for inspections of the apparatus chassis and aerial device?
A
1911
17
Q
When approaching a structure with the aerial, always finish by
A
Lowering
18
Q
How many feet should the aerial device be kept away from power lines of unknown voltage?
A
50’
19
Q
What should always be done prior to extending or retacting the ladder?
A
Drain the waterway
20
Q
From which direction should you approach rescue victims?
A
Upwind
21
Q
each operator on the aerial device should be equipped with a fall restraint ladder belt and tether
A
a fall restraint ladder belt and tether
22
Q
Personnel must be safely anchored to a structural feature of the ladder or platform:
A
Any time they are not actively climbing or descending the ladder.
Any time they are not actively entering or exiting the platform.
Any time the device is in motion.
23
Q
Use only structural features of the ladder or platform for
A
Anchor points
24
Q
Climb or descend an aerial carefully maintaining
A
three points of contact with a structural feature at all times
25
When the aerial device is in motion
use fall protection on ladders and in the platform.
26
Never extend or retract the aerial device
with people on the ladder.
27
While operating the aerial, if visual contact cannot be maintained then the operator
must rely on a spotter.
28
Never place personnel at the tip or platform of the aerial device
if the operation can be accomplished without them being there.
29
Ladder capacity ratings are established for many different operating positions other than
full extension and zero degrees elevation.
30
Failure to properly stabilize the apparatus could result in
tipping the apparatus.
31
What is a knuckle on an articulating aerial apparatus?
Joint between two boom sections.
32
What must be done with the valves and nozzles on an aerial device to minimize shock loading?
open and close them in a SLOW and controlled manner
33
True pinnable waterways
are permanently attached nozzle systems that can be operated from either the tip of the aerial or one section lower.
34
What is the 75-80-80 guideline for detachable ladder pipe use?
75 degree elevation, 80 percent extended length, and 80 psi nozzle pressure for a 112-inch tip.
35
The limit of ice build-up allowed by NFPA® 1901 is
1/4 inch on all surfaces.
36
If the aerial device is going to be used for elevated master stream operations, avoid parking it so that
the stream will be operated against the wind.
37
What is ice shrugging?
slowly extending and retracting the aerial device to remove accumulated ice
38
If the aerial device comes into contact with high heat and cannot be moved immediately
water streams should be applied to the device to help keep it cool.
39
While most manufacturers do not recommend using the aerial device to physically lift a load, the aerial device is sometimes used
to create a high point anchor for a rope rescue system that moves a load.
40
Some aerial devices may also be used to
deploy master streams to below-grade locations.
41
What equipment is essential for personel who will be climbing the ladder or riding in the platform?
Fall protection
42
What fall protection features are on an aerial ladder or platform?
Handrails, railings, and gates
43
What NFPA standard includes ladder belts and tethers?
1983
44
How many points of contact should you have climbing or decending a ladder?
3
45
Which of these is not a command for aerial device movement?
Beam in/Beam out
46
Where is the primary control position for the aerial operator?
Lower control usually at the turntable
47
Where is the secondary control position for the aerial operator?
Upper control usually in the platform basket
48
Who is responsible for the safe operation of the aerial device?
Aerial operator
49
What is the term for the graphical or tubular description of the load that can be distributed on an aerial device?
Load chart
50
What causes ladders to have higher tip capacities?
As elevation angles increase or when the ladder is not fully extended
51
What is the proper order for aerial device operation?
Elevation, rotation, extension, and lowering
52
How should aerial devices be operated?
Slow, smooth, and controlled
53
Why should full speed aerial operations be minimized?
It puts a large amount of dynamic stress on the aerial device when the motion is haulted
54
What is unique about a water tower?
It is equiped with only a master stream nozzle at the end of the upper boom and not intended to lift firefighters or equipment
55
What is the term for the joint between two sections of the boom in an articulating aerial device?
Knuckle
56
What does NFPA require on elevated platforms?
Heat sheild and protective water curtain nozzle
57
What is the 75-80-80 guideline for quick ladder pipe use?
75 degree elevation, 80 percent extended length, and 80 psi nozzle pressure
58
What NFPA standard establishes static load requirements that an aerial apparatus must meet when operating on a grade?
1901
59
How much ice does NFPA allow to build up on aerial device surfaces before it becomes unsafe?
1/4"
60
What is the term for slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
61
Any time personnel are not actively climbing, decending, entering, exiting or device is in motion, what must occur
Personnel must be safely anchored
62
The NFPA 1983 standard on life safety rope also pertains to what safety device on an aerial
ladder belt and tether
63
Three pionts of contact must be maintained during what aerial operation
climbing or decending
64
When is it acceptable to rotate, elevate or lower the aerial when people are on the ladder
if they are securely attached to a structural feature
65
Extending and retracting the aerial when people are on the ladder is acceptable when
this is not acceptable
66
Ladder capacity ratings on the load chart establish ratings for
many different operating positions
67
What part of the articulating aerial device can decrease visibility for the operator
knuckle
68
A pinnable water way is located where on the aerial in rescue mode
one fly section back from tip
69
If the aerial water way has a remote control available, what is true about it's use
it is preferred to use the remote to control the nozzle due to safety and reduced manpower
70
Wire rope on aerial ladders will develop barbs, when these are present it is important to
wear gloves
71
The stresses on an aerial ladder that involve motion, such as wind or falling objects is known as
shock or dynamic loading
72
The 75-80-80 guideline for a quick ladder pipe refers to
75 deg elevation, 80% extension, 80 psi for 1-1/2 tip
73
Water curtains on aerials are designed to do what
protect firefighters from sudden radiant heat or flames
74
NFPA 1901 states the limit of ice build up on all surfaces of an aerial can be no more than
1/4 inch
75
If whole trees are moving, it is safe to estimate wind speed of
32-38 mph
76
If the heat sensors on the aluminum aerial change color what must occur next
aerial device removed from service
77
When using the auxiliary hydraulic pump it is necessary to operate
operate in intervals to reduce overheating
78
What type of aerial device is best suited for below grade rescue
three boom articulating boom
79
Which of the following is correct when stabilizing an aerial apparatus
Never set up on slopes exceeding the manufacturer's recommendations
80
Besides slowing down during inclement weather, what other precaution should be taken
turn off auxiliary brake
81
Which of the following pieces of equipment can be used in below-grade operations, while not exceeding weight restrictions?
A winch mounted to the platform
82
Which of the following is recommended when operating an aerial device?
Primary operator must be prepared to override operations
83
Some mounted video cameras have what capability?
Thermal imaging
84
High wind gusts can impose sufficient force which may cause what?
The deformation or twisting of the aerial device
85
What is the limit of ice build-up allowed by NFPA 1901?
1/4 inch (6mm)
86
Driver/operator should never perform which of the following moves?
Extend or retract the device with people on the ladder
87
NFPA requires an aerial elevating platform to have which of the following?
Heat shield and water curtain nozzle
88
How many firefighters should be on the top fly section of the aerial ladder when changing the stream pattern?
Only one firefighter at a time
89
Due to its weight, ice adversely affects stability, lessens the working load capacity, and significantly does what else?
Decreases rescue capability
90
What effect takes place when the driver/operator operates the aerial device on a grade?
It greatly complicates the stress placed upon the device
91
What NFPA standard specifies static load requirements for a aerial apparatus when operating on a grade?
NFPA 1901
92
Before placing an aerial device back in service after heat, mechanical, or power failure, it should be tested in accordance with what NFPA standard?
NFPA 1911
93
Which of the following contains information about the ladder capacity ratings?
Load chart
94
What is the strongest position for the aerial device during icy conditions?
In line with the apparatus chassis
95
When should personnel anchor their tether to a structural anchor?
As soon as possible upon entering the basket
96
A foot pedal or valve on the floor in the platform of an aerial device typically operates what?
Water-curtain nozzle
97
As new apparatus are being designed, how are detachable ladder pipes and appliances being used?
Less frequently
98
Which of the following is recommended if winds exceed manufacturer's limits?
Cease operations
99
Which operator performs the final positioning of the aerial ladder during rescue or other fire fighting operations?
Secondary control operator
100
Any thawing agent which is used in response to cold weather must be what type of agent?
Noncorrosive
101
What of the following is the safest anchor point?
Ladder rung
102
Who is responsible for the safety of people on an aerial device when it is in motion?
Aerial operator
103
Who helps the aerial operator position when blind spots are an issue?
Spotter
104
What must the primary control operator be ready to do if unsafe conditions are encountered?
Override secondary controls
105
What is the name of the chart that describes the load distributions based on extension, stabilizer setup, wind, ice and water flow?
Load chart
106
What is the order of using a telescoping aerial apparatus?
Elevate, rotate, and extend
107
On some apparatus, simultaneous motion when 1 function is suddenly released while another is still in use can cause what?
Hydraulic pressure spike and erratic behavior
108
The joint between two sections of boom in an articulating aerial device is called?
Knuckle
109
Why should full-speed operations regardless of skill level be minimized?
Dynamic stress on the ladder
110
Why must all valves and nozzles be opened and closed slowly?
To minimized shock load
111
A shock load on an aerial device is also known as what?
Dynamic load
112
Detachable waterways should use what guide lines for ladder pipe usage?
75-80-80
113
What do the 3 numbers correspond to in the detachable waterway guidelines?
Elevation, % of extension length, psi
114
What's the purpose of the water curtain nozzle?
Protection from extrema heat
115
What is the limit of ice build up allowed by NFPA 1901?
1/4"
116
What is the weight of 1 cubic inch of ice?
.03 lbs.
117
What is it called when you slowly extend and retract an aerial device to remove ice?
Ice shrugging
118
What of the following is NOT a sign of heat damage to an aerial device?
Paint chips
119
What is the most common scenario that requires below grade rescue?
Special rescue operations
120
What of the following is Not an adverse condition?
High heat
121
Before a driver operator is considered qualified he or she should be capable of operating the divice in all of the following situations except for what?
Emergency maneuvers
122
All operators on an aerial device should be equipped with what?
Fall restraint ladder belt and tether
123
Most ladder belts and tethers are not designed for what?
Self-rescue
124
Anywhere wire rope (cable) comes close to or cantact other mechanical parts such as pulleys, sheaves, roller guides, or any structural features son the device than what exists?
Pinch hazard
125
Wire rope (cable) through use will develop what which can slice skin?
Barbs
126
All of the following are commands to use when relaying movement instructions except for what?
Elongate
127
The primary control position for the aerial operator is where?
Lower controls
128
At a minimum what type of communication with personnel at the tip should be had?
Two-way
129
Graphical or tabular description of the load that can be distributed on an aerial device based on factors such as extension, elevation, stabilizer set-up is called what?
Load chart
130
Raising the aerial device consists of a series of motions that should be done in an order. What is the order?
Elevated, rotated, extended, lowered
131
Because of the forces being generated, all movements must be what?
Feathered
132
What is the joint between two sections of boom in an articulating aerial device called?
Knuckle
133
The speed at which an aerial device moves is proportional to the amount of what?
Control lever movement
134
Elevated water delivery systems are divided into the following categories except what?
Aerial ladders with portable waterways
135
All valves and nozzles must be opened and closed in a slow and controlled manner to minimize what type of loading of the aerial device?
Shock
136
When using pinnable waterways, placement of the master stream at the tip is called what mode?
Fire fighting mode
137
The quick guideline for quick ladder pipe use is what?
75 - 80 - 80
138
Use ladder pipes perpendicular to the rungs on older units and allow for a maximum lateral movement of how many degrees on either side?
15
139
The limit of ice build-up allowed by NFPA 1901 is how much on all surfaces?
0.25 inches
140
1 cubic inch of ice is how heavy?
0.03 pounds
141
Which NFPA standard dictates the requirements for a ladder belt and tether?
NFPA 1983
142
Who is responsible for selecting the the length of the tether which must be consistent with ladder operations?
Safety officer
143
Which actions should never be preformed with personell operating on an arial ladder?
Extending or retracting
144
What is the main reason for always wearing protective gloves when handling wire rope on an aerial apparatus?
barbs may develope which can slice skin
145
Where should the "primary control" position be located on an aerial apparatus?
At the turntable
146
Where is the "secondary control" position located on an aerial apparatus?
Upper tip controls or in the platform basket
147
Where can you find the manufacturers provided information on distributed load capacities, depending onthe ladders extension and elevation?
Load chart
148
What is the proper order of movements for placing the aerial ladder to its objective?
Elevate, rotate and extend
149
The operational speed of the aerial device is directly proportional to what?
Amount the control lever is pushed or pulled
150
What is the term that describes the joint between two sections of a boom in an articulating aerial device?
Knuckle
151
What is the main reason why it is most desirable to operate the nozzle on an aerial ladder using remote controls?
Eliminates placing a firefighter in a hazardous position
152
Why is it important to open and close valves and nozzles in a slow and controlled manner on aerial devices?
Minimize shock loading the aerial device
153
What is the general guideline for quick ladder pipe use? (elevation, extension, PSI
75-80-80
154
On elevated platforms, what are two protective requirements located beneath the platform?
Heat shield and protective water curtain
155
What is the designed use for protective water curtains?
Emergency situations where personell and equipment are endangered by radiant heat or flames
156
What force is imposed on an aerial device when operated on a grade?
Twisting
157
What is the max limit of ice build-up on an aerial device per NFPA 1901?
1/4 inch
158
What is the term that refers to slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
159
If an aerial device has been exposed to heat damage, before placing the apparatus back in service, it should be given a thorough operation test in accordanc with which NFPA standard?
1911
160
Which type of aerial devie is particularly well-suited for below grade rescue operations?
Three-boom articulating aerial platform
161
Which of the following is a fall protection device for an aerial platform?
gates
162
In addition to fall protection, devices should be installed on all aerial devices, each operator on the device should have what?
a fall restraint ladder belt and tether
163
Who selects the length of the tether that is used as fall protection features for aerial devices?
the safety officer
164
When descending the ladder, firefighter should?
anchor the tether any time they pause the climb
165
Which of the following should occur before moving an aerial device with people on the ladder?
maintain communications between personnel
166
When should personnel anchor their tether to a structural anchor?
as soon as possible upon entering the basket
167
Which of the following hazards exists when rope comes into contact with other mechanical parts like pulleys and rollers that are on the device?
pinch hazard
168
Which of the following is a reason personnel should always wear gloves when handling wire rope?
rope with barbs can slice your hand
169
The driver/operator must be well versed in?
aerial layout and operations of device controls
170
Any time there is a firefighter operating the second secondary control position, there must also be a trained and authorized aerial operator at the?
primary control position
171
Which operator performs the final positioning of the aerial ladder during rescue and other firefighting operations?
secondary control position
172
Which of the following contains information about the ladder capacity ratings?
load chart
173
The operation speed of an articulating device is directly proportional to the?
amount the control lever is pushed or pulled
174
When operating an articulating aerial what makes the outward visibility area difficult to operate?
knuckle
175
It is generally not considered safe to move aerial ladders with detachable waterways very far because?
the hose and nozzle are charged
176
As new apparatus are being designed, detachable ladder pipes and appliances are?
being used less frequently
177
NFPA requires an aerial elevating platform to have a?
heat shield and water curtain nozzle
178
What NFPA standard specifics static load requirements for aerial apparatus when in grade?
NFPA 1901
179
Which of the following situations is a platform aerial device not designed to routinely handle?
operating on a grade
180
High wind gust can impose sufficient force to cause?
the deformation to twisting of the aerial device
181
WHat NFPA Standard do ladder belts and tethers have to meet?
1983
182
Who is responsible for the the safety of people on the aerial device when it is in motion?
The aerial operator
183
Which motions should never be done while people are on the ladder?
Extend or retract
184
What type of hazard is presented with wire cables when they come close to or contact other mechanical parts?
Pinch
185
WHich of the following are standard commands for moving an aerial device?
Raise, Lower, Rotate, Extend, Retract
186
Where is the primary control position?
The lower controls, usually the turntable
187
What should be referenced to determine the load capacity depending on the ladder extension and elevation?
Load chart
188
What must a driver/operator do prior to conducting operations with the aerial?
Properly stabilize the apparatus
189
What order should an aerial device move in?
Elevated, rotated, extended, lowered
190
What term describes slow and smooth movements of the aerial device?
Feathering
191
What is the joint between two sections of a boom in an articulating aerial device?
Joint
192
Why should all valves and nozzles be opened slowly on an aerial device?
To minimize shock loading the aerial device
193
When using the aerial in a fire attack mode, what should occur with the waterway?
It should be pinned so have the nozzle at the tip of the aerial
194
How many firefighters should be on the top fly of the aerial when changing the stream pattern?
1
195
Sudden pressure changes can result in what?
Shock loading and ladder sway
196
When should a protective water curtain be used?
Emergency situations
197
Which NFPA standard establishes static load requirements that an aerial apparatus must meet when operating on a grade?
1901
198
What is the limit of ice build up allowed and which NFPA standard establishes this?
1/4" and NFPA 1901
199
What is the process of slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
200
What type of aerial device is particularly well-suited for below grade rescue operations?
Three-boom articulating aerial platform
201
What is a unique concern to operating articulating aerial apparatus?
Operating Space
202
Per NFPA 1901, what is the amount of ice build-up allowed?
1/4"
203
What does the term, "shrugging off", mean?
removal of ice from moving parts by slowly extending and retracting moving parts
204
How much does one cubic inch of ice weigh?
0.03lbs.
205
Where would you generally find the primary operator controls for aerial devices?
turntable pedestal
206
What could be a contributing factor of aerial device failure?
operator knowledge
207
Ladder belts and tether's should meet the requirements of which NFPA standard?
1983
208
Who is responsible for the safety of people on the device whenever it is in motion?
Aerial operator
209
Which of the following contains information about the ladder capacity ratings?
Load chart
210
What should be minimized, regardless of the operator's skill level?
full-speed operations
211
Why is the knuckle of particular concern when operating an articulating aerial device at lower elevations?
due to it being outside of the operator's visibilty
212
What is the most desirable way to operate an elevated master stream nozzle?
remote control
213
Which of the aerial ladder water delivery systems present more of an operational challenge?
aerial ladders with detachable waterways
214
Where should the supply hose be located when an aerial doesn’t have a pre-piped waterway?
in the center of the ladder
215
What is the guideline for quick ladder pipe use?
75 degrees elevation, 80 percent extension, 80 psi nozzle pressure
216
What does the NFPA standard require an elevating platform be equiped with?
heat shield and water curtain nozzle
217
Who is responsible for monitoring the wind, ice, and waterflow, ensuring not to exceed the load chart limitations?
Operator at the primary controls
218
Who performs the final positioning of the aerial ladder during resuce or other firefighting operations?
secondary control operator
219
What is recommended before retracting an aerial device?
open waterway drains
220
If the voltage is of a power line unknown, how far should you keep the aerial device, vehicle, and personnel?
50'
221
where must people be safely anchored to on a ladder?
structural feature
222
When must people be anchored on a ladder or platform truck?
not climbing up, entering a platform or when the ladder is in motion
223
What motion can never happen with people on the ladder?
extend or retract
224
What does foot pedal or valve on the floor of the platform typically operate?
water-curtain nozzle
225
what must a driver must be well versed on aerial trucks?
in the layout and operation of aerial device controls
226
What does cold weather do to hydraulic oil?
increase the viscosity
227
How many points of contact when exiting, entering or working on apparatus?
3 points
228
What is guideline for quick ladder pipe use?
75 degree elevation, 80%extended and 80 psi nozzle pressure
229
What is a protective water curtain used for?
use for emergency situations where personnel and equipment are exposed to radiant heat and flames
230
what conditions do aerial drivers need to be aware of?
high winds
231
what is the limit of ice build up allowed on ladder ?
1/4 inch
232
what is term used to remove ice by extending and retracting the ladder?
shrugging off
233
What is good to do with ladder trucks on windy days ?
train and learn reach of fire stream
234
where should you park if aerial is going to be used as a master stream?
with the wind
235
what is needed to lower ladder if main hydraulic pump fails?
auziliary hydraulic pump
236
where do you aim ladder for victim rescue?
above and then lower down
237
when using ladder pipe what needs to be done first?
drain it
238
wheredoes the primary operator need to be when ladder is moving?
at the main controls
239
how should the ladder be uncraddled from the truck?
elevate, rotate, extend and lower
240
What are 2 ways a true pinnable waterway on ladder can be deployed?
fire fighting mode and rescue mode
241
Ensure that any aerial apparatus chassis and device is inspected in accordance with the current NFPA®
1911
242
Enter, exit, and work on apparatus using the
three points of contact method
243
Keep aerial device, vehicle, and personnel how many feet from power lines? (if voltage is not known)
50
244
Keep aerial device, vehicle, and personnel how many feet from power lines if voltage is 350 Kilovolts or less?
10
245
Approach rescue victims from
upwind
246
Aim above the rescue victim and then
lower the device to them
247
When operating near unstable structures
avoid loose or falling debris
248
Watch for possible structure collapse from
water weight
249
Never anchor the working end of a pullied rescue rope to other parts of the apparatus, to
static structures, or to objects on the ground
250
Drain pre-piped waterways prior to
extending or retracting
251
each operator on the device should be equipped with a fall restraint ladder belt and tether This ladder belt and tether should meet the requirements of NFPA
1983
252
All personnel on aerial ladder or platform must wear a
safety harness with restraint belt properly attached to the device
253
Fall protection will only be useful if the tether is secured to a portion of the device that will support the
load imposed by a fall
254
Anchor the safety tether to a structural feature
any time you pause in your climb
255
When the device is in motion
use fall protection on ladders and in the platform
256
Never extend or retract the device with
people on the ladder
257
All personnel riding in the platform must be
tethered to a structural feature of the platform or an approved anchor at all times
258
Never touch wire rope
while in tension or under load
259
Never place personnel at the tip or platform of the aerial device
if the operation can be accomplished without them being there
260
either at the upper (tip) controls or controls in the platform basket
The secondary control position
261
While not recommended for lifting, what else can an aerial apparatus be used for at below grade rescues?
Anchor point for ropes
262
What NFPA number covers Inspection, Maintance and Testing ?
1911
263
When using a hose line to cool an aerial apparatus , what type of stream should NOT be used?
Straight or solid stream
264
What must the primary control operator be ready to do if unsafe conditions are encountered?
Override secondary controls
265
What can be done to prevent water ways from freezing?
Keep drain valves open
266
What is the order of using a telescoping aerial apparatus?
Elevate, rotate, and extend
267
On some apparatus, simultaneous motion when 1 function is suddenly released while another is still in use can cause what?
Hydraulic pressure spike and erratic behavior
268
What type of load is caused by heavy wind?
Dynamic load
269
Why should full-speed operations regardless of skill level be minimized?
Dynamic stress on the ladder
270
Why must all valves and nozzles be opened and closed slowly?
To minimized shock load
271
A shock load on an aerial device is also known as what?
Dynamic load
272
Detachable waterways should use what guide lines for ladder pipe usage?
75-80-80
273
What do the 3 numbers correspond to in the detachable waterway guidelines?
Elevation, % of extension length, psi
274
What's the purpose of the water curtain nozzle?
Protection from extrema heat
275
What is the limit of ice build up allowed by NFPA 1901?
1/4"
276
What is the weight of 1 cubic inch of ice?
.03 lbs.
277
What is it called when you slowly extend and retract an aerial device to remove ice?
Ice shrugging
278
What of the following is NOT a sign of heat damage to an aerial device?
Paint chips
279
What is the most common scenario that requires below grade rescue?
Special rescue operations
280
What of the following is Not an adverse condition?
High heat
281
What equipment is essential for personel who will be climbing the ladder or riding in the platform?
Fall protection
282
What fall protection features are on an aerial ladder or platform?
Handrails, railings, and gates
283
What NFPA standard includes ladder belts and tethers?
1983
284
How many points of contact should you have climbing or decending a ladder?
3
285
Which of these is not a command for aerial device movement?
Beam in/Beam out
286
Where is the primary control position for the aerial operator?
Lower control usually at the turntable
287
Where is the secondary control position for the aerial operator?
Upper control usually in the platform basket
288
Who is responsible for the safe operation of the aerial device?
Aerial operator
289
What is the term for the graphical or tubular description of the load that can be distributed on an aerial device?
Load chart
290
What causes ladders to have higher tip capacities?
As elevation angles increase or when the ladder is not fully extended
291
What is the proper order for aerial device operation?
Elevation, rotation, extension, and lowering
292
How should aerial devices be operated?
Slow, smooth, and controlled
293
Why should full speed aerial operations be minimized?
It puts a large amount of dynamic stress on the aerial device when the motion is haulted
294
What is unique about a water tower?
It is equiped with only a master stream nozzle at the end of the upper boom and not intended to lift firefighters or equipment
295
What is the term for the joint between two sections of the boom in an articulating aerial device?
Knuckle
296
What does NFPA require on elevated platforms?
Heat sheild and protective water curtain nozzle
297
What is the 75-80-80 guideline for quick ladder pipe use?
75 degree elevation, 80 percent extended length, and 80 psi nozzle pressure
298
What NFPA standard establishes static load requirements that an aerial apparatus must meet when operating on a grade?
1901
299
How much ice does NFPA allow to build up on aerial device surfaces before it becomes unsafe?
1/4"
300
What is the term for slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
301
Where are the primary control position for the aerial operator?
the lower controls on the turntable
302
Where is the secondary control position located on an aerial device?
at the tip or platform
303
Which of the following is described as the graphical or tubular description of the load that can be distributed on an aerial device?
load chart
304
When operating an aerial device at full speed, what kind of stress can be placed on to the aerial when the device is halted?
dynamic
305
Protective water curtains installed on a platform aerial device were designed to protect personnel and equipment exposed to what type of heat?
radiant
306
How does cold weather effect the hydraulic oil?
increases viscosity
307
What is the limit of ice build up on an aerial device outlined by NFPA 1901?
1/4 inch
308
What type of load is placed on an aerial device during high wind conditions?
dynamic load
309
What is one adverse effect of ice build up on an aerial device?
in decreases the working load
310
1 cubic inch of ice can weigh:
0.03 pounds
311
Where is the valve to activate the protective water curtain located on a platform aerial device generally located?
on the floor of the platform
312
Most aerial devices used in the modern day fire service are:
telescoping
313
What is the minimum distance required between an aerial device and power lines if the voltage is unknown to the operator?
50 feet
314
What is the maximum lateral movement of the aerial device when a ladder pipe is being operated?
15 degrees
315
What is a quick guideline used for rapid aerial ladder pipe use and outlines the degree of elevation, percent extended length and nozzle pressure?
75-80-80
316
What is the estimated wind speed when small trees are in motion/ white caps are present on ponds and lakes?
15-24 mph
317
What is the estimated wind speed when large tree branches are in motion/ whistling is heard from utility wires?
25-31 mph
318
What is the estimated wind speed when whole trees are in motion and there is a inconvenience felt walking against the wind?
32-38 mph
319
What is the estimated wind speed when twigs break off trees and minor building damage is noted?
39-54 mph
320
Where can the nozzle system be operated on a pinnable waterway system located on an aerial device?
at the tip and one fly section lower
