Acting Engineer Test Flashcards
According to NFPA 1901, fire
department pumpers should have a
minimum pump capacity of:
750 gpm
After the driver/operator perceives the need to stop the vehicle, the distance the apparatus travels while the driver/operator transfers his or her foot from the accelerator to the break pedal is:
Reaction Distance
All aerial device movement should be
slow, smooth, and controlled because
of the:
force being
generated.
Apparatus equipped with a diesel particulate filter (DPF) will have:
very clean
exhaust emissions
and no black
smoke
Apparatus equipped with pressure
governors should be set in:
Pressure mode when acting as the attack pumper and RPM mode while working as a relay pumper.
An apparatus that is equipped with a fire pump,
water tank, and hose, in addition to an aerial
device and ground ladders, is BEST referred to
as a:
quint
The component in a load management system
that turns on various lights at specified
intervals so the electrical load for all devices
does not occur at the same time is called the:
load sequencer
The current formula for friction loss accounts
for the diameter of the hose, the volume of
water flowing and the:
length of the hose layout
The deck gun mounted to the engine has a 1
1/2 inch tip. What is the pump discharge
pressure?
90
During pumping operations driver/operators
should maintain a residual pressure on the
master intake gauge:
of at least 20 psi
During response to a possible hazardous
material incident, the apparatus should
approach from:
uphill and upwind
For a multistage centrifugal fire pump,
switching from volume to pressure.
can result in immediate doubling of previous discharge pressure.
For which of the following is a nozzle
pressure of 80 psi a safe and efficient
nozzle pressure?
Solid stream
nozzle (master
stream)
Generally, the maximum flow for a
handline is 350 gpm (1400L/min)
because greater flows will:
produce a nozzle reaction that is difficult or dangerous for firefighters to handle
How is the pumper position to supply
a fire department connection best
determined?
Through pre-
incident planning
If 300 gpm is flowing from a nozzle,
what is the total pressure loss due to
friction for 400 feet of 2 1/2 inch
hose?
72
If a sprinkler system is to be supplied at the fire department connections and no specific information is available, the general guideline is to discharge:
150 psi into the FDC
If discharge flow volume is increased too
much when operating from the
pressurized water source:
it may lead to
cavitation of the
pump.
If the building has been exposed to
severe fire conditions, it is MOST
advisable to park:
outside of
the buildings
collapse zone.
If water is not flowing for an extended
period of time during fire attack, why
might a circulator, bypass, or booster
cooling valve be opened on a pump?
To prevent
the pump from
overheating
In general, pumps supplying a relay
operation or master stream are used to
supply large amounts of water and
therefore require:
use of a parallel (volume) setting of the transfer valve.
In most jurisdictions, when civilian drivers
encounter emergency vehicles
responding with warning lights activated
and audible devices sounding they must:
pull to the right, stop, clear intersections, and remain motionless.
In order for apparatus to come to a
complete stop on snow and ice, it may
take:
3 to 15 times greater distance than it does on dry pavement.
In order to produce fire fighting foam,
what three items must be educated or
injected in correct ratios?
Foam
concentrate,
water, air
In the “inside/outside” method when would
an attack pumper be positioned on the
side of the street closest to the building
and the aerial apparatus be placed
outboard of the pumper?
If building
is less than
five floors tall
Newer operators should avoid full-speed
operations until:
they are very familiar with the operations of the aerial device.
Nozzle reaction occurs as water is
discharged from a nozzle a given pressure
and:
a counterforce pushes back against firefighters operating the hoseline
On an aerial apparatus, which of the
following refers to the angle formed by level
ground and a line from the point where front
tries touch the ground to the lowest
projection at the front of the apparatus?
Angle of
approach
The operation of a centrifugal pump is based
on the principle that a rapidly revolving disk
tends to throw water introduced at its center:
toward
the outer
edge of the
disk.
Pressure for standpipes operations for fire
departments may be:
labeled on the faceplate of the fire department connection
Solid stream nozzels on handlines should be
operated at a maximum of:
50 psi
nozzle
pressure
A solid stream nozzle produces a fire stream
that has a:
tight stream and little spray or shower effect
Total pressure loss includes friction loss and
elevation pressure loss combined with the
loss associated with:
appliances
Using an aerial device as an
exterior standpipe to upper floors
is a tactic that:
can eliminate
difficult hose lays up
interior stairwells.
Weight carried on most apparatus
can contribute to:
Skidding or possible
rollover due to lateral
weight transfer
What agency in the United States
establishes basic requirements for
licensing a driver?
Federal Department
of Transportation
(DOT)
What hundred block east is
Detroit?
2800
What hundred block is Boulder St?
2600
What hundred block is Mansfield?
3900
What hundred block is Market St.?
1400