Chapter 4 Operating Emergency Vehicles Flashcards
Which of the following seldom causes serious injury or death, but accounts for a significant portion of overall damage costs?
Improper backing of the apparatus
Excessive speed by the fire apparatus driver/operator can result in which of the following?
Inability of driver/operator to stop in time to avoid a collision with another vehicle
Poor apparatus design is most often a factor on:
homebuilt water tenders.
Which of the following statements about driving regulations is TRUE?
If a driver/operator does not obey driving regulations and is involved in a collision, both the driver/operator and the fire department may be held responsible.
Which of the following statements about driving regulations is FALSE?
Driving regulations pertain to dry, clear roads during nighttime conditions.
Always consult the ___, supplied with each vehicle, for detailed instructions specific to the vehicle.
manufacturer’s operator’s manual
When should the vehicle be started so that it is warmed up when the rest of the crew is assembled and ready to respond?
As soon as possible
Take the time to review the ___ and consider important factors that may affect the response such as road closings and traffic conditions.
incident location
Do not move the apparatus until:
all occupants are seated within the cab and wearing seatbelts.
After releasing the ___, place the gear shifter into a low gear that will allow the vehicle to move with a minimum of throttle.
parking brake
Never attempt to start the apparatus moving while it is in:
high gear.
Release the ___ slowly when starting from a standstill, avoiding vehicle rollback.
clutch
Keep the apparatus in low gear until the ___ is reached for shifting to a higher gear.
proper speed
When climbing a hill, shift the transmission to:
a lower gear.
On sharp curves or when turning corners, shift standard transmissions into:
a lower gear.
What should be used when fire apparatus must be driven over rough or rugged terrain?
The lower gears
If the apparatus becomes stuck in mud or snow, DO NOT:
race the engine or pop the clutch.
Which of the following should be selected before driving downhill?
A lower gear
To prevent engine damage, limit downhill speed to ___ maximum governed rpm.
lower than
Once the apparatus is ready to move, depress the ___ and move it to the appropriate gear selection.
interlock on the shifter
Be aware that the ___ influences automatic shifting.
pressure placed upon the accelerator
Manually select a lower gear as necessary when operating the apparatus at a slow speed for a long period of time or when:
driving up a steep hill.
Which of the following should NOT be attempted?
A. Downshifting at low rpm
B. Jumping more than one gear at a time*
C. Starting the apparatus in low gear
D. Driving the apparatus in high gear for long periods of time
Once the apparatus is moving, how should the vehicle be accelerated?
Gradually
Do not try to reach rated speed in the:
low gears.
Stay in the highest gear that allows the apparatus to ___ and still have some power in reserve for acceleration.
keep up with traffic
Attempt to maintain ___ control through correct throttling.
engine rpm
What should be avoided in order to reduce lugging?
Overthrottling
Do not allow the ___ if lugging does occur.
engine rpm to drop below peak torque speed
What should be done when ascending a steep grade and momentary unavoidable lugging takes place?
Select progressively lower gears
Avoid overspeeding as a result of improper downshifting or hill descent. Choose a gear that allows the engine to operate at ___ lower than maximum recommended rpm.
200 or 300 rpm
Which of the following is NOT a consideration when stopping the apparatus?
A. Weight of apparatus
B. Length of apparatus*
C. Condition of brakes
D. Condition of road surface
If the unit has a ___, become thoroughly familiar with all the manufacturer’s recommendations regarding its operation prior to use.
retarder
Do not disengage the clutch until ___, particularly on slippery surfaces.
the last few feet (meters) of travel
When the engine must be left to idle for an extended period of time, at what should the idle be set?
900 to 1,100 rpm
If diesel engines are to be left idling, they should be set at:
high idle.
Never attempt to shut down the engine while the apparatus is in:
motion.