Aerial Apparatus pt. 4 Flashcards
?s 154 - 200
Proper deployment of stabilization is:
dependent upon the manufacturer’s design.
The apparatus inspection should begin by approaching the vehicle and looking beneath the vehicle for spots that indicate:
leaking vehicle fuilds.
The pressure remaining once water has begun flowing is _________ pressure.
residual
The purpose of the check valve in a fire department connection is to prevent:
water from a sprinkler system from flowing back.
Which is true when approaching an intersection?
Bring the apparatus to a complete stop if there are obstructions that block you view.
To restore or replace that which has become inoperable is:
repair.
A _______ gauge is designed to read both positive and negative pressure.
compound
Pumps on aerial apparatus should be hydrostatically tested at ____ psi for ____ minutes.
150 ; five (5)
In emergency incidents that occur near railroad tracks, you should:
always treat the tracks as an inactive line.
Which operator must be extra careful when checking the path of the upper and lower booms for obstructions when behind the operator?
All driver/operators
Concerning placement of aerial apparatus, when making a pre-incident plan, special consideration should be given to occupancy and:
overhead obstructions.
Which salvage, overhaul and loss control equipment are specifically required to be carried on an aerial apparatus by NFPA 1901?
Multiple salvage covers and two scoop shovels.
The angle formed by level ground and a line from the point where the REAR tires of a vehicle touch the ground to the lowest projection at the REAR of the apparatus is the:
angle of departure.
Using the condensed Q method, the friction loss in 500 feet of 3-inch fire hose flowing 300 gpm is:
45 psi.
In a water distribution grid, the _______ supplies individual hydrants and users.
distributor
When charging an apparatus battery using cables, you should:
follow the manufacturer’s operations manual for which battery the cables should be connected to.
All fire apparatus should be equipped with _______ when the apparatus is backing up.
an alarm system that warns others
Using the coefficient method, determine the pressure loss due to friction in the hose assembly.
21.5 psi
To keep fire apparatus in good operating condition, maintenance must be performed in accordance with:
the manufacturer’s recommendations.
Inspection forms for all fire department apparatus should be documented by the:
driver/operator
Which is true when ventilating a building with an aerial apparatus?
When resources permit, it is always a good idea to ladder the roof from two different sides to permit an alternative escape route.
Specifications for aerial ladders and elevating platform fire apparatus are contained in:
NFPA 1901
For rear-mounted aerial devices, __________ is the preferred method for deployment.
backing in to the fire building
As you climb a hill, the engine speed begins to drop. Your accelerator is fully depressed. Which term best describes this situation?
Engine Slugging
When used in a relay pumping operation, the relay pumper:
acts as the booster pump in the operation.
The device that controls pressure surges by changing engine speed to compensate for changes in flow is a:
pressure governor
The operation in which each impeller of a multi-stage centrifugal pump discharges into a common outlet is:
parallel pumping
An ammeter/voltmeter indicates the:
top voltage available when the battery is fully charged.
When it is necessary to move wide with the trailer while making a turn at an intersection, you should start turning away from the corner about the time the:
rear tractor wheels enter the intersection.
Which is true with regard to stabilizing aerial apparatus?
The base of stability is effectively increased by the deployment of the outriggers.
A _________ is a device that is used to prevent an aerial from tipping over.
stabilizer
All elevating platforms must have a minimum load capacity of ________ when the aerial device is fully extended, at any elevation within its normal range of motion, and with no water in the piping system.
750 lbs (340kg)
The primary difference between a telescoping platform and an articulating platform is:
that booms of an articulating platform are connected by a hinge.
The rule of thumb for the quick correct angle and extension set-up of a ladder pipe is:
70 - 75 degrees
The NFPA 1901 Standard requires all newer aerial apparatus to be equipped with a:
two-way communication system.
Keeping something in a state of usefulness or readiness is:
maintenance.
If the building is less than _______ stories, the aerial apparatus may be positioned outside the pumpers.
5
Which is a common cause of skids involving driver error?
Failing to anticipate obstacles.
An advantage of having inverters is:
low or non-existent noise during operation.
Monitoring the water flow and controlling the speed of a positive displacement foam concentrate pump controls:
variable-flow, variable-rate direct injection systems.
When positioning an aerial device for operation, a position that should be avoided is:
long extension, low angle
The easiest method to remove a victim in a stokes basket is to:
slide it down the ladder.
Even though they adjust themselves, you must check apparatus brake system automatic slack adjusters:
daily.
When making an intake connection at a hydrant, the intake hose should:
have a slight curve.
The least stable aerial device operating position is an angle:
perpendicular to the chassis on a horizontal place.
The aerial device should always maintain a distance of _________ from overhead electric lines.
10 feet (3m)
When driving manual transmission apparatus, upon approaching curves, you should:
shift the transmission to a lower gear.
