Aerial Apparatus pt. 2 Flashcards
?s 53 - 105
Which statement is true with regard to controlling a skid in an apparatus not equipped with ABS?
Turn the steering wheel so that the front wheels face in the opposite direction of the skid.
The main feature of a relief valve is to:
release excessive pressure within the pump.
Before turning corners or negotiating curves, the apparatus driver of a manual transmission should:
shift into a lower gear.
Victims that are _____ should be rescued first.
most severely threatened
The confined space turnaround exercise allows you to turn the apparatus ____ degrees.
180
In 2012, there were _____ firefighters killed while on duty.
81
Which is particularly well-suited for below grade rescue operations?
Three-boom articulating aerial platform.
An Auxiliary cooling device:
cools engine water when the apparatus pump is engaged.
When operating a tiller leaving the station and the apparatus is turning sharp right, you should:
keep the tiller centered in the doorway.
When left idling because of cold weather or floodlight operations, diesel engines should be set at:
high idle.
It is possible to level the aerial apparatus by using the stabilizers to raise one side of the vehicle more than the other. This is easier to correct on grades that are:
perpendicular to the long centerline of the apparatus.
A fire hydrant with an orange bonnet and cap will flow _____ gpm.
500 - 999
When operating the aerial device from the ground control station, you must be standing on:
the operator’s platform.
Based on the following illustration, when approaching from the UPHILL side in a REAR mounted aerial, you should:
operate the aerial over the REAR.
Most aerial apparatus control pedestals use three separate levers to control elevation, extension, and rotation. The levers are positioned from LEFT to RIGHT on the pedestal in the following order:
Extension, Rotation, Elevation
(Study guide says Elevation, rotation, and extension, but that is the order from RIGHT to LEFT.)
When identifying the working height of an aerial ladder, it should be in a position of _______ extension.
maximum elevation
While participating in the diminishing clearance exercise, you must stop the apparatus with the front bumper within _____ inches of the finishing line.
6
When backing a fire apparatus, which is true?
If you cannot see your spotter, do not back the apparatus.
When an aerial apparatus must operate on an incline with two rear jacks, you can reduce these stresses by:
always operating the device over the front of the apparatus.
A method of relay pumping is:
constant pressure.
When using an aerial ladder to remove a victim in a stokes basket, if the basket will not fit between the rails, it may be secured to the:
top rail.
It is important to maintain ____ of fuel.
at least 3/4 of a tank
Which hazardous actions contribute to the adverse effects of weight transfer?
Too much speed in turns.
The most stable operating position for any aerial device is:
in line with the longitudinal axis.
The purpose of a stabilizer pad is to provide:
weight distribution for the stabilizer.
Excessive engine temperatures during pumping operations can be controlled by using the:
auxiliary cooler.
The safest time to attach the ladder pipe and make hose connections is when the device:
is still in its bedded position.
The 50% annual pump test on a quint apparatus is conducted at a net pump pressure of:
250 psi for 10 minutes.
A hot-shift PTO system can be engaged when the main transmission is in:
neutral.
When lowering to the bedded position, you must:
assure that the aerial is properly aligned.
Which statement is true with regard to passing other vehicles during emergency response?
Be certain that the opposing lanes of traffic are clear of oncoming traffic when crossing the center line.
The parking brake must be able to hold the apparatus in place on a _____ percent grade.
20
What happens when the floor of the platform and/or the knuckles between the booms are not parallel to the ground?
Twisting force on the entire aerial device.
The tiller operator’s assignments include straight-line driving, turning and backing, _______, and safe operation of the aerial ladder.
proper placement of the trailer
Which stabilizers cannot be deployed if obstructions are present?
Fulcrum
In a _____ hydrant, a small drain valve opens as the hydrant is closed.
dry-barrel
According to the US Fire Administration, ______ firefighters were killed in the US while responding to or returning from emergency calls.
17
Fire fighting foam consists of approximately _______% water.
94 - 99.9
Which valve determines whether the pump is operating in series or pressure mode?
Transfer valve
While conducting a pump capacity test, if the net pump pressure is correct, but the nozzle flow (gpm) is too high, the:
discharge gate must be closed further, decrease throttle.
A ladder pipe with a 2-inch tip @ 80 psi nozzle pressure will have approx. ________ pounds of nozzle reaction.
500
Manufacturers recommend that new apparatus be frequently washed with cold water for:
six months.
A braking system that has a snow-and-mud- switch is an:
antilock braking system with automatic traction control.
The stability of tillered aerial apparatus can be increased at an incident location by:
jackknifing the apparatus 90 degrees or less.
The collapse zone of a building should be _______ the structure.
one and one half times the height of
Which condition should be between 0 degrees F and 100 degrees F during a service pump test?
Barometric temperature
A fire apparatus should be dried:
with a clean chamois.
The maximum loading for an unsupported aerial device occurs when operated at angles ______ degrees from horizontal.
between 70 and 80
Water adds weight to the fire building at the rate of ____ per minute for every 250 gpm applied.
2,000 lbs
Which is a destructive aerial device testing procedure?
Load
When relay pumping, if the intake pressure drops below 20 psi:
there is a danger of a cavitation.
When setting up for defensive operations with an elevated master stream, position the aerial apparatus:
on the unburned side of the building.
What prevents the movement of fluid within the stabilization system?
Holding valve
