Pumping and Aerial Driver Operator 3rd Ed.
What is the NFPA Standard for Automotive Fire Apparatus?
Which term refers to a pumper built on a pickup-truck chassis?
During the air brake system test, for a straight-chassis vehicle with the brake pedal depressed, pressure loss should not exceed _____ over one minute.
1 psi (7 kPa)
10 psi (69 kPa)
3 psi (21 kPa)
5 psi (34 kPa)
The parking brake test is performed at which speed?
3 mph (5 km/h)
7 mph (11 km/h)
0 mph (0 km/h)
5 mph (8 km/h)
The paint and clear-coat of a new apparatus require special care for about __________ after it is received.
Which statement about NFPA requirements for replacing apparatus tires is correct?
Replacement is required every 10 years
Replacement is required every 5 years
Replacement is required every 7 years
Replacement is not required for tires in good condition
Which item should be checked while the engine is running?
Power steering fluid
Automatic transmission fluid
How many firefighters were killed while responding to or returning from an emergency call in 2010?
What is required by the NFPA when reloading large diameter hose onto an apparatus by driving the apparatus over (straddling) the hose?
The apparatus must drive forward during loading
Backing over the hose is permitted only when there is a safety observer who has radio contact with the driver
The loader on the tailboard must wear a safety strap
The loader on the ground must have radio contact with the driver
Which is a common result of prolonged idling of a diesel motor?
Increased oil temperature
Increased carbon build-up
Fuel contamination of crankcase oil
Exhaust manifold damage
As you begin to ascend a steep ramp, the rear of your apparatus scraps the pavement. Which point of contact did you fail to take into account?
Ramp breakover angle
Angle of approach
Angle of departure
The effectiveness of audible warning devices __________.
Decreases with simultaneous use of more than one device
Increases as vehicle speed increases
Decreases with more frequent changes of pitch
Decreases as vehicle speed increases
During an emergency response, you are nearing an intersection where there is good visibility for all approaches. In front of you, all lanes of traffic are blocked in the same direction you are traveling. What should you do?
Cautiously move the apparatus into an oncoming traffic lane and proceed slowly through the intersection
Use the apparatus public address speaker to direct the movement of vehicles
Temporarily shut off your warning devices and wait until the signal changes
Signal the cars in the lane directly ahead of you to pull forward into the intersection and off to the side
Several seconds have passed after starting the apparatus motor, and you notice that the oil pressure remains well below normal. What should you do?
Continue to idle the motor for another minute to see if the pressure rises
Rev the motor to bring up the pressure
Run the motor at fast idle to bring up the pressure
Stop the motor immediately
In general, what is the best attack pumper placement when there are no signs of fire?
At the building's main access point
Past the front of the building to permit a look at three sides of the structure
At the nearest hydrant or fire department connection
At the closest corner of the structure from the direction of approach
What do ornamental stars or large nuts and washers on the exterior walls of a building indicate?
Type IV construction
Structural reinforcement rods
Bowstring truss construction
Which is the best choice for a hydrant connection?
Large diameter intake hose
Two or more medium-diameter lines
Large diameter hard suction hose
Small diameter hard suction hose
Hoselines used in a mobile wildland attack should be __________.
As short as possible
A minimum of 150 feet (46 m) long
A minimum of 100 feet (30 m) long
A minimum of 50 feet (15 m) long
In which hazmat control zone is decontamination usually performed?
At which temperature does water convert from a liquid to a gas?
32 deg F (0 deg C)
212 deg F (100 deg C)
100 deg F (38 deg C)
0 deg F (-18 deg C)
Water's rate of heat absorption is directly affected by the __________ of the water.
The pressure of a liquid in an open container is proportional to its __________.
All other things being equal, friction loss __________ with the length of a hose.
Does not vary
Suddenly stopping the flow of water through a hose or pipe will result in __________.
One of three key water consumption rates that engineers consider in water distribution system design is __________ consumption.
Each of the following is one of the three basic types of fire streams EXCEPT ONE. CHOOSE THE EXCEPTION.
Which fog nozzle first deflects water off a circular stem in the center of the nozzle and then off the inside of the exterior barrel?
Nozzle pressure for solid master stream is generally _____ psi.
100 (690 kPa)
60 (415 kPa)
75 (515 kPa)
80 (550 kPa)
Which is the simplified formula for calculating solid stream nozzle reaction?
1.5 x NP
Discharge from a 1-3/4" (45 mm) solid stream nozzle operating at 50 psi (350 kPa) is _____ gpm.
645 (2425 L/min)
590 (2235 L/min)
670 (2515 L/min)
615 (2330 L/min)
Total pressure loss from 2-1/2" hoseline 350 feet in length with a 1" solid stream nozzle operating at 50 psi is _____ psi.
Two 1-1/2" lines, each flowing 100 gpm, and each 150 feet in length, are wyed off of a 2-1/2" supply line that is 250 feet in length. What is the total pressure loss in psi?
What is the correct pump discharge pressure in psi for a 2-1/2" attack line, 150 feet long, discharging 250 gpm through a standard fog nozzle?
A pumper is supplying two attack lines, both using standard fog nozzles. Line 1 is 600 feet of 1-1/2" hose, discharging 25 gpm from 100 feet below the engine. Line 2 is 1-1/2" hose, 650 feet long, discharging 25 gpm from 60 feet below the engine. What is the correct pump discharge pressure in psi?
What is the friction loss coefficient for 1" booster hose?
What is the friction loss coefficient for 3-1/2" hose?
What is the friction loss coefficient for 38 mm hose?
What is pressure loss caused by hose lining, couplings, kinks, etc?
As a general rule of thumb, friction loss for a master stream appliance is _____ psi.
10 (70 kPa)
15 (105 kPa)
25 (175 kPa)
20 (140 kPa)
Elevation pressure loss for a hoseline discharging 80 feet (24 m) above the pump is _____ psi.
20 (140 kPa)
40 (275 kPa)
30 (200 kPa)
35 (240 kPa)
What does a flowmeter indicate?
Pressure at the pump discharge
Pressure at the nozzle
Friction loss between the discharge and the nozzle
Amount of water being discharged
How should a flowmeter be used to adjust pump throttle while pumping into a supply line in a relay operation?
Increase pump speed until the flowmeter reading begins to fluctuate, then reduce pump speed slightly
Increase pump throttle until discharge volume no longer increases
Increase pump pressure to provide an intake pressure of 50 psi (350 kPa) at the receiving pumper
Increase pump throttle until minimum residual pressure plus 10 psi (70 kPa) is reached
What is the correct procedure to estimate friction loss using the gpm flowing method for 100 feet of 2-1/2" hose?
Multiply the flow in gpm by .10
Divide the flow in gpm by 100, and square it
Find the square root of the flow in gpm
Subtract 10 from the first two digits of the flow in gpm
With a positive displacement pump, the amount of fluid pumped __________.
Increases or decreased with demand
Varies at a fixed pump speed
Is constant at a given pump speed
Is not related to pump speed
Which pump type is non-positive displacement?
Because there is no mechanical obstruction between the intake and discharge sides of a centrifugal pump, __________.
The pump is less susceptible to damage from water hammer