19 - IFSTA Chapter 19 Flashcards
What NFPA standard describes the requirements for ladder belts and tethers?
1983
When do personnel not necessarily need to be anchored to a structual part of the ladder or platform?
Any time they are operating off the ladder
What type of hazard is created when wire rope comes close to or contact otjer mechanical parts?
Pinch
Which is not a command fiven to the aerial operator?
Lift
Which of the following is not a responsibility of the primary control position?
Be belted in position to protect against abrupt of unexpected ladder movement
Any time there is a firefighter operating at the secondary control position, there must be:
A trained aerial operator at the primary controls
The four series of motions of rasing the aerial device are:
Elevating, rotating, extending, lowering
What order should the aerial device be moved?
Elevated, rotated, extended, lowered
All movements of the aerial must be slow, smooth and controlled, also known as:
Feathering
What is the prefered method to operate the nozzle on a master stream from an aerial device?
Remote control box/wireless
How many firefighters should be on the top fly of the aerial ladder when changing the stream pattern?
1
What may result if sudden pressure changes should occur?
Shock loading and ladder sway
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?
75, 80, 80
What is the limit of ice accumulation allowed by NFPA 1901?
1/4”
Which NFPA establishes static load requirments that an aerial apparatus must meet when operating on a grade?
1901
Which NFPA provides guidance for inspections of the apparatus chassis and aerial device?
1911
When approaching a structure with the aerial, always finish by
Lowering
How many feet should the aerial device be kept away from power lines of unknown voltage?
50’
What should always be done prior to extending or retacting the ladder?
Drain the waterway
From which direction should you approach rescue victims?
Upwind
each operator on the aerial device should be equipped with a fall restraint ladder belt and tether
a fall restraint ladder belt and tether
Personnel must be safely anchored to a structural feature of the ladder or platform:
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.
Use only structural features of the ladder or platform for
Anchor points
Climb or descend an aerial carefully maintaining
three points of contact with a structural feature at all times
When the aerial device is in motion
use fall protection on ladders and in the platform.
Never extend or retract the aerial device
with people on the ladder.
While operating the aerial, if visual contact cannot be maintained then the operator
must rely on a spotter.
Never place personnel at the tip or platform of the aerial device
if the operation can be accomplished without them being there.
Ladder capacity ratings are established for many different operating positions other than
full extension and zero degrees elevation.
Failure to properly stabilize the apparatus could result in
tipping the apparatus.
What is a knuckle on an articulating aerial apparatus?
Joint between two boom sections.
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
True pinnable waterways
are permanently attached nozzle systems that can be operated from either the tip of the aerial or one section lower.
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.
The limit of ice build-up allowed by NFPA® 1901 is
1/4 inch on all surfaces.
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.
What is ice shrugging?
slowly extending and retracting the aerial device to remove accumulated ice
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.
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.
Some aerial devices may also be used to
deploy master streams to below-grade locations.
What equipment is essential for personel who will be climbing the ladder or riding in the platform?
Fall protection
What fall protection features are on an aerial ladder or platform?
Handrails, railings, and gates
What NFPA standard includes ladder belts and tethers?
1983
How many points of contact should you have climbing or decending a ladder?
3
Which of these is not a command for aerial device movement?
Beam in/Beam out
Where is the primary control position for the aerial operator?
Lower control usually at the turntable
Where is the secondary control position for the aerial operator?
Upper control usually in the platform basket
Who is responsible for the safe operation of the aerial device?
Aerial operator
What is the term for the graphical or tubular description of the load that can be distributed on an aerial device?
Load chart
What causes ladders to have higher tip capacities?
As elevation angles increase or when the ladder is not fully extended
What is the proper order for aerial device operation?
Elevation, rotation, extension, and lowering
How should aerial devices be operated?
Slow, smooth, and controlled
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
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
What is the term for the joint between two sections of the boom in an articulating aerial device?
Knuckle
What does NFPA require on elevated platforms?
Heat sheild and protective water curtain nozzle
What is the 75-80-80 guideline for quick ladder pipe use?
75 degree elevation, 80 percent extended length, and 80 psi nozzle pressure
What NFPA standard establishes static load requirements that an aerial apparatus must meet when operating on a grade?
1901
How much ice does NFPA allow to build up on aerial device surfaces before it becomes unsafe?
1/4”
What is the term for slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
Any time personnel are not actively climbing, decending, entering, exiting or device is in motion, what must occur
Personnel must be safely anchored
The NFPA 1983 standard on life safety rope also pertains to what safety device on an aerial
ladder belt and tether
Three pionts of contact must be maintained during what aerial operation
climbing or decending
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
Extending and retracting the aerial when people are on the ladder is acceptable when
this is not acceptable
Ladder capacity ratings on the load chart establish ratings for
many different operating positions
What part of the articulating aerial device can decrease visibility for the operator
knuckle
A pinnable water way is located where on the aerial in rescue mode
one fly section back from tip
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
Wire rope on aerial ladders will develop barbs, when these are present it is important to
wear gloves
The stresses on an aerial ladder that involve motion, such as wind or falling objects is known as
shock or dynamic loading
The 75-80-80 guideline for a quick ladder pipe refers to
75 deg elevation, 80% extension, 80 psi for 1-1/2 tip
Water curtains on aerials are designed to do what
protect firefighters from sudden radiant heat or flames
NFPA 1901 states the limit of ice build up on all surfaces of an aerial can be no more than
1/4 inch
If whole trees are moving, it is safe to estimate wind speed of
32-38 mph
If the heat sensors on the aluminum aerial change color what must occur next
aerial device removed from service
When using the auxiliary hydraulic pump it is necessary to operate
operate in intervals to reduce overheating
What type of aerial device is best suited for below grade rescue
three boom articulating boom
Which of the following is correct when stabilizing an aerial apparatus
Never set up on slopes exceeding the manufacturer’s recommendations
Besides slowing down during inclement weather, what other precaution should be taken
turn off auxiliary brake
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
Which of the following is recommended when operating an aerial device?
Primary operator must be prepared to override operations
Some mounted video cameras have what capability?
Thermal imaging
High wind gusts can impose sufficient force which may cause what?
The deformation or twisting of the aerial device
What is the limit of ice build-up allowed by NFPA 1901?
1/4 inch (6mm)
Driver/operator should never perform which of the following moves?
Extend or retract the device with people on the ladder
NFPA requires an aerial elevating platform to have which of the following?
Heat shield and water curtain nozzle
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
Due to its weight, ice adversely affects stability, lessens the working load capacity, and significantly does what else?
Decreases rescue capability
What effect takes place when the driver/operator operates the aerial device on a grade?
It greatly complicates the stress placed upon the device
What NFPA standard specifies static load requirements for a aerial apparatus when operating on a grade?
NFPA 1901
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
Which of the following contains information about the ladder capacity ratings?
Load chart
What is the strongest position for the aerial device during icy conditions?
In line with the apparatus chassis
When should personnel anchor their tether to a structural anchor?
As soon as possible upon entering the basket
A foot pedal or valve on the floor in the platform of an aerial device typically operates what?
Water-curtain nozzle
As new apparatus are being designed, how are detachable ladder pipes and appliances being used?
Less frequently
Which of the following is recommended if winds exceed manufacturer’s limits?
Cease operations
Which operator performs the final positioning of the aerial ladder during rescue or other fire fighting operations?
Secondary control operator
Any thawing agent which is used in response to cold weather must be what type of agent?
Noncorrosive
What of the following is the safest anchor point?
Ladder rung
Who is responsible for the safety of people on an aerial device when it is in motion?
Aerial operator
Who helps the aerial operator position when blind spots are an issue?
Spotter
What must the primary control operator be ready to do if unsafe conditions are encountered?
Override secondary controls
What is the name of the chart that describes the load distributions based on extension, stabilizer setup, wind, ice and water flow?
Load chart
What is the order of using a telescoping aerial apparatus?
Elevate, rotate, and extend
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
The joint between two sections of boom in an articulating aerial device is called?
Knuckle
Why should full-speed operations regardless of skill level be minimized?
Dynamic stress on the ladder
Why must all valves and nozzles be opened and closed slowly?
To minimized shock load
A shock load on an aerial device is also known as what?
Dynamic load
Detachable waterways should use what guide lines for ladder pipe usage?
75-80-80
What do the 3 numbers correspond to in the detachable waterway guidelines?
Elevation, % of extension length, psi
What’s the purpose of the water curtain nozzle?
Protection from extrema heat
What is the limit of ice build up allowed by NFPA 1901?
1/4”
What is the weight of 1 cubic inch of ice?
.03 lbs.
What is it called when you slowly extend and retract an aerial device to remove ice?
Ice shrugging
What of the following is NOT a sign of heat damage to an aerial device?
Paint chips
What is the most common scenario that requires below grade rescue?
Special rescue operations
What of the following is Not an adverse condition?
High heat
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
All operators on an aerial device should be equipped with what?
Fall restraint ladder belt and tether
Most ladder belts and tethers are not designed for what?
Self-rescue
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
Wire rope (cable) through use will develop what which can slice skin?
Barbs
All of the following are commands to use when relaying movement instructions except for what?
Elongate
The primary control position for the aerial operator is where?
Lower controls
At a minimum what type of communication with personnel at the tip should be had?
Two-way
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
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
Because of the forces being generated, all movements must be what?
Feathered
What is the joint between two sections of boom in an articulating aerial device called?
Knuckle
The speed at which an aerial device moves is proportional to the amount of what?
Control lever movement
Elevated water delivery systems are divided into the following categories except what?
Aerial ladders with portable waterways
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
When using pinnable waterways, placement of the master stream at the tip is called what mode?
Fire fighting mode
The quick guideline for quick ladder pipe use is what?
75 - 80 - 80
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
The limit of ice build-up allowed by NFPA 1901 is how much on all surfaces?
0.25 inches
1 cubic inch of ice is how heavy?
0.03 pounds
Which NFPA standard dictates the requirements for a ladder belt and tether?
NFPA 1983
Who is responsible for selecting the the length of the tether which must be consistent with ladder operations?
Safety officer
Which actions should never be preformed with personell operating on an arial ladder?
Extending or retracting
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
Where should the “primary control” position be located on an aerial apparatus?
At the turntable
Where is the “secondary control” position located on an aerial apparatus?
Upper tip controls or in the platform basket
Where can you find the manufacturers provided information on distributed load capacities, depending onthe ladders extension and elevation?
Load chart
What is the proper order of movements for placing the aerial ladder to its objective?
Elevate, rotate and extend
The operational speed of the aerial device is directly proportional to what?
Amount the control lever is pushed or pulled
What is the term that describes the joint between two sections of a boom in an articulating aerial device?
Knuckle
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
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
What is the general guideline for quick ladder pipe use? (elevation, extension, PSI
75-80-80
On elevated platforms, what are two protective requirements located beneath the platform?
Heat shield and protective water curtain
What is the designed use for protective water curtains?
Emergency situations where personell and equipment are endangered by radiant heat or flames
What force is imposed on an aerial device when operated on a grade?
Twisting
What is the max limit of ice build-up on an aerial device per NFPA 1901?
1/4 inch
What is the term that refers to slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
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
Which type of aerial devie is particularly well-suited for below grade rescue operations?
Three-boom articulating aerial platform
Which of the following is a fall protection device for an aerial platform?
gates
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
Who selects the length of the tether that is used as fall protection features for aerial devices?
the safety officer
When descending the ladder, firefighter should?
anchor the tether any time they pause the climb
Which of the following should occur before moving an aerial device with people on the ladder?
maintain communications between personnel
When should personnel anchor their tether to a structural anchor?
as soon as possible upon entering the basket
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
Which of the following is a reason personnel should always wear gloves when handling wire rope?
rope with barbs can slice your hand
The driver/operator must be well versed in?
aerial layout and operations of device controls
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
Which operator performs the final positioning of the aerial ladder during rescue and other firefighting operations?
secondary control position
Which of the following contains information about the ladder capacity ratings?
load chart
The operation speed of an articulating device is directly proportional to the?
amount the control lever is pushed or pulled
When operating an articulating aerial what makes the outward visibility area difficult to operate?
knuckle
It is generally not considered safe to move aerial ladders with detachable waterways very far because?
the hose and nozzle are charged
As new apparatus are being designed, detachable ladder pipes and appliances are?
being used less frequently
NFPA requires an aerial elevating platform to have a?
heat shield and water curtain nozzle
What NFPA standard specifics static load requirements for aerial apparatus when in grade?
NFPA 1901
Which of the following situations is a platform aerial device not designed to routinely handle?
operating on a grade
High wind gust can impose sufficient force to cause?
the deformation to twisting of the aerial device
WHat NFPA Standard do ladder belts and tethers have to meet?
1983
Who is responsible for the the safety of people on the aerial device when it is in motion?
The aerial operator
Which motions should never be done while people are on the ladder?
Extend or retract
What type of hazard is presented with wire cables when they come close to or contact other mechanical parts?
Pinch
WHich of the following are standard commands for moving an aerial device?
Raise, Lower, Rotate, Extend, Retract
Where is the primary control position?
The lower controls, usually the turntable
What should be referenced to determine the load capacity depending on the ladder extension and elevation?
Load chart
What must a driver/operator do prior to conducting operations with the aerial?
Properly stabilize the apparatus
What order should an aerial device move in?
Elevated, rotated, extended, lowered
What term describes slow and smooth movements of the aerial device?
Feathering
What is the joint between two sections of a boom in an articulating aerial device?
Joint
Why should all valves and nozzles be opened slowly on an aerial device?
To minimize shock loading the aerial device
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
How many firefighters should be on the top fly of the aerial when changing the stream pattern?
1
Sudden pressure changes can result in what?
Shock loading and ladder sway
When should a protective water curtain be used?
Emergency situations
Which NFPA standard establishes static load requirements that an aerial apparatus must meet when operating on a grade?
1901
What is the limit of ice build up allowed and which NFPA standard establishes this?
1/4” and NFPA 1901
What is the process of slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
What type of aerial device is particularly well-suited for below grade rescue operations?
Three-boom articulating aerial platform
What is a unique concern to operating articulating aerial apparatus?
Operating Space
Per NFPA 1901, what is the amount of ice build-up allowed?
1/4”
What does the term, “shrugging off”, mean?
removal of ice from moving parts by slowly extending and retracting moving parts
How much does one cubic inch of ice weigh?
0.03lbs.
Where would you generally find the primary operator controls for aerial devices?
turntable pedestal
What could be a contributing factor of aerial device failure?
operator knowledge
Ladder belts and tether’s should meet the requirements of which NFPA standard?
1983
Who is responsible for the safety of people on the device whenever it is in motion?
Aerial operator
Which of the following contains information about the ladder capacity ratings?
Load chart
What should be minimized, regardless of the operator’s skill level?
full-speed operations
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
What is the most desirable way to operate an elevated master stream nozzle?
remote control
Which of the aerial ladder water delivery systems present more of an operational challenge?
aerial ladders with detachable waterways
Where should the supply hose be located when an aerial doesn’t have a pre-piped waterway?
in the center of the ladder
What is the guideline for quick ladder pipe use?
75 degrees elevation, 80 percent extension, 80 psi nozzle pressure
What does the NFPA standard require an elevating platform be equiped with?
heat shield and water curtain nozzle
Who is responsible for monitoring the wind, ice, and waterflow, ensuring not to exceed the load chart limitations?
Operator at the primary controls
Who performs the final positioning of the aerial ladder during resuce or other firefighting operations?
secondary control operator
What is recommended before retracting an aerial device?
open waterway drains
If the voltage is of a power line unknown, how far should you keep the aerial device, vehicle, and personnel?
50’
where must people be safely anchored to on a ladder?
structural feature
When must people be anchored on a ladder or platform truck?
not climbing up, entering a platform or when the ladder is in motion
What motion can never happen with people on the ladder?
extend or retract
What does foot pedal or valve on the floor of the platform typically operate?
water-curtain nozzle
what must a driver must be well versed on aerial trucks?
in the layout and operation of aerial device controls
What does cold weather do to hydraulic oil?
increase the viscosity
How many points of contact when exiting, entering or working on apparatus?
3 points
What is guideline for quick ladder pipe use?
75 degree elevation, 80%extended and 80 psi nozzle pressure
What is a protective water curtain used for?
use for emergency situations where personnel and equipment are exposed to radiant heat and flames
what conditions do aerial drivers need to be aware of?
high winds
what is the limit of ice build up allowed on ladder ?
1/4 inch
what is term used to remove ice by extending and retracting the ladder?
shrugging off
What is good to do with ladder trucks on windy days ?
train and learn reach of fire stream
where should you park if aerial is going to be used as a master stream?
with the wind
what is needed to lower ladder if main hydraulic pump fails?
auziliary hydraulic pump
where do you aim ladder for victim rescue?
above and then lower down
when using ladder pipe what needs to be done first?
drain it
wheredoes the primary operator need to be when ladder is moving?
at the main controls
how should the ladder be uncraddled from the truck?
elevate, rotate, extend and lower
What are 2 ways a true pinnable waterway on ladder can be deployed?
fire fighting mode and rescue mode
Ensure that any aerial apparatus chassis and device is inspected in accordance with the current NFPA®
1911
Enter, exit, and work on apparatus using the
three points of contact method
Keep aerial device, vehicle, and personnel how many feet from power lines? (if voltage is not known)
50
Keep aerial device, vehicle, and personnel how many feet from power lines if voltage is 350 Kilovolts or less?
10
Approach rescue victims from
upwind
Aim above the rescue victim and then
lower the device to them
When operating near unstable structures
avoid loose or falling debris
Watch for possible structure collapse from
water weight
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
Drain pre-piped waterways prior to
extending or retracting
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
All personnel on aerial ladder or platform must wear a
safety harness with restraint belt properly attached to the device
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
Anchor the safety tether to a structural feature
any time you pause in your climb
When the device is in motion
use fall protection on ladders and in the platform
Never extend or retract the device with
people on the ladder
All personnel riding in the platform must be
tethered to a structural feature of the platform or an approved anchor at all times
Never touch wire rope
while in tension or under load
Never place personnel at the tip or platform of the aerial device
if the operation can be accomplished without them being there
either at the upper (tip) controls or controls in the platform basket
The secondary control position
While not recommended for lifting, what else can an aerial apparatus be used for at below grade rescues?
Anchor point for ropes
What NFPA number covers Inspection, Maintance and Testing ?
1911
When using a hose line to cool an aerial apparatus , what type of stream should NOT be used?
Straight or solid stream
What must the primary control operator be ready to do if unsafe conditions are encountered?
Override secondary controls
What can be done to prevent water ways from freezing?
Keep drain valves open
What is the order of using a telescoping aerial apparatus?
Elevate, rotate, and extend
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
What type of load is caused by heavy wind?
Dynamic load
Why should full-speed operations regardless of skill level be minimized?
Dynamic stress on the ladder
Why must all valves and nozzles be opened and closed slowly?
To minimized shock load
A shock load on an aerial device is also known as what?
Dynamic load
Detachable waterways should use what guide lines for ladder pipe usage?
75-80-80
What do the 3 numbers correspond to in the detachable waterway guidelines?
Elevation, % of extension length, psi
What’s the purpose of the water curtain nozzle?
Protection from extrema heat
What is the limit of ice build up allowed by NFPA 1901?
1/4”
What is the weight of 1 cubic inch of ice?
.03 lbs.
What is it called when you slowly extend and retract an aerial device to remove ice?
Ice shrugging
What of the following is NOT a sign of heat damage to an aerial device?
Paint chips
What is the most common scenario that requires below grade rescue?
Special rescue operations
What of the following is Not an adverse condition?
High heat
What equipment is essential for personel who will be climbing the ladder or riding in the platform?
Fall protection
What fall protection features are on an aerial ladder or platform?
Handrails, railings, and gates
What NFPA standard includes ladder belts and tethers?
1983
How many points of contact should you have climbing or decending a ladder?
3
Which of these is not a command for aerial device movement?
Beam in/Beam out
Where is the primary control position for the aerial operator?
Lower control usually at the turntable
Where is the secondary control position for the aerial operator?
Upper control usually in the platform basket
Who is responsible for the safe operation of the aerial device?
Aerial operator
What is the term for the graphical or tubular description of the load that can be distributed on an aerial device?
Load chart
What causes ladders to have higher tip capacities?
As elevation angles increase or when the ladder is not fully extended
What is the proper order for aerial device operation?
Elevation, rotation, extension, and lowering
How should aerial devices be operated?
Slow, smooth, and controlled
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
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
What is the term for the joint between two sections of the boom in an articulating aerial device?
Knuckle
What does NFPA require on elevated platforms?
Heat sheild and protective water curtain nozzle
What is the 75-80-80 guideline for quick ladder pipe use?
75 degree elevation, 80 percent extended length, and 80 psi nozzle pressure
What NFPA standard establishes static load requirements that an aerial apparatus must meet when operating on a grade?
1901
How much ice does NFPA allow to build up on aerial device surfaces before it becomes unsafe?
1/4”
What is the term for slowly extending and retracting the aerial device to remove accumulated ice?
Ice shrugging
Where are the primary control position for the aerial operator?
the lower controls on the turntable
Where is the secondary control position located on an aerial device?
at the tip or platform
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
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
Protective water curtains installed on a platform aerial device were designed to protect personnel and equipment exposed to what type of heat?
radiant
How does cold weather effect the hydraulic oil?
increases viscosity
What is the limit of ice build up on an aerial device outlined by NFPA 1901?
1/4 inch
What type of load is placed on an aerial device during high wind conditions?
dynamic load
What is one adverse effect of ice build up on an aerial device?
in decreases the working load
1 cubic inch of ice can weigh:
0.03 pounds
Where is the valve to activate the protective water curtain located on a platform aerial device generally located?
on the floor of the platform
Most aerial devices used in the modern day fire service are:
telescoping
What is the minimum distance required between an aerial device and power lines if the voltage is unknown to the operator?
50 feet
What is the maximum lateral movement of the aerial device when a ladder pipe is being operated?
15 degrees
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
What is the estimated wind speed when small trees are in motion/ white caps are present on ponds and lakes?
15-24 mph
What is the estimated wind speed when large tree branches are in motion/ whistling is heard from utility wires?
25-31 mph
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
What is the estimated wind speed when twigs break off trees and minor building damage is noted?
39-54 mph
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
