2016 Peirce Flashcards
According to national safety council how many accidents can be blamed on poor backing techniques.
1 out of 4
In a medium sized truck, blind spots can extend up to ___feet in front and ____ft behind vehicle.
16ft.
160ft.
The vehicle or parts of the vehicle do not need to touch the power line for vehicle to become energized. Electricity will arc across gap as large as ___ feet
10ft.
High pressure hydrology fluid at pressures as low as ___ psi can penetrate skin.
100psi
Tire pressure should be checked while the tire is cold. Tires that are heated through us may have a ___psi higher rating.
15psi
Elevation motion is generated through two double lift cylinders, giving the ladder capability of ___ degrees below horizontal to ___ degrees above horizontal.
5 degrees to 75 degrees
The tip of Aerial has a ___lb capacity at full extension. With a ___mph wind and discharging up to ____ gpm at ____psi.
500lb tip
50mph wind
1000 gpm @100 psi
The aerial is equipped with extricate swivel with ____ collector rings. Each collector ring is capable of handling a ____-amp load.
28 collector rings
20 amp load
The EPU operates of of trucks batteries and can operate continuously for up to ___min
30min
Jackknife collision warnings activate at ___ and____ angles.
Engine-65 and 85 degrees
Load manager. Low battery illuminates when voltage drops below ____VDC. Fast idle activates when voltage drops below ___ VDC.
11.9 and 12.8
The vehicle is equipped with a Vehical data recorder (VDC). The VDR is capable of reading and storing the most recent ___hours of vehicle information.
100 hours
Hydraulic system pressure. The system standby pressure is ____. The maximum system pressure is ____psi
350psi +/- 10 psi
3000psi maximum
Batteries give off ___ gas that is highly explosive.
Hydrogen
Use __ and ___ for removing corrosion and cleaning top of batteries.
Hot water and baking soda
Battery indicator leds:
At full charge all five bars illuminate ____ to indicate batter voltage of _____volts.
As the battery discharges, green bars extinguish until 3 remain to indicate a battery voltage of _____ volts
1 red bar will flash to indicate charge has dropped to ____ volts or below
Green/13+ volts
- 4 volts
- 2 volts
If battery voltage gets to high( ___ volts) all five bars will ____ to indicate the over voltage condition.
15 volts/flash red
When the level in the fuel tank has dropped to the ____tank mark:
• Light in fuel gauge comes on steady,
• Amber caution light in indicator bank comes on steady,
• LCD display CAUTION text will flash with LOW FUEL LEVEL message.
1/8 th
When the level in the fuel tank has dropped to the 1/32th tank mark:
• Red warning light in indicator bank comes on steady,
• LCD display WARNING text will flash with VERY LOW FUEL LEVEL message,
• Caution alarm will chime.
1/32 mark
Fast idle is activated whenever system voltage is reduced to 12.8 volts for at least one minute. Fast idle remains on for a minimum of ____minutes and until ____volts is achieved.
12.8 volts
10min / 13 volts
Diesel engines consume as much as ____cubic feet of clean air every minute operating under full load.
1200 cubic ft.
Power Inverter
The Samlex power inverter converts low voltage ___power from the chassis batteries to ______power. The inverter is not part of the onboard generator system. Use the power inverter to provide electrical power to AC devices. The total power output rating for this application is ____watts.
Dc / standard 115v AC
1125 watts
The Cummins ONAN model HDKAL-1B diesel powered generator, rated at a maximum _____watts
7500 watts
If generator is being run continuously, check for fuel, exhaust, oil and coolant leaks every ___ hours
8
Preheat the generator. Hold the control switch in the PREHEAT position (stop position) for the following number
of seconds according to ambient temperature:
Above 50 degrees:
0 to 50 degrees:
Below 0 degrees:
— 10 seconds - above 50°F (10°C)
— 15 seconds - 0°F to 50°F (-17°C to 10°C)
— 20 seconds - below 0°F (-17°C)
Pre heat times longer than ___ seconds can damage the glow plugs. (Onan)
20sec
Allow the generator to cool down by running ___ to ___ min at no load before stoping.
3 to 5 min
If the generator is used infrequently, run the generator at approximately ____rated power for ___hour every week.
1/2 rated power for 1 hour every week
Engine break in, change oil and oil filter after the first ___ hours of operation
50
These engines are equipped with varying specialized exhaust equipment designed to reduce :
- ___
- ___
- ___
to reduce:
soot (partially burned fuel particles),
ash (partially burned oil particles),
and nitrogen oxide (NOx) emissions.
Parked regen rpm?
900
During parked regen clear exhaust outlet by ___ ft.
If indoors, exhaust pipe must be rated at least ____ degrees F
5ft
1500 degrees F
When the ECU initiates the regeneration, exhaust system temperatures will rise, and the HEST lamp will illuminate with temperatures above ____ degrees F
977 degrees F
The DEF reservoir on Pierce custom fire apparatus is ____ gallons
4 1/2 gallons
Over time the DPF must be removed, disassembled, and cleaned in a special machine to remove the ash build-up.
The maintenance interval is ______ to _____miles, or up to _____hours,
The maintenance interval is 200,000-400,000 miles, or up to 6,750 hours,
If the engine does not start within ___seconds, release the starter buttons and allow the starter motor to cool for ____seconds before attempting to start the engine again.
15 sec
60sec
All engine manufacturers warn against excessive engine operating time, greater than ____ min.
5min
Excessive idling can have the following detrimental effects on the engine:
• Fuel dilution of the lubricating oil
• Unburned fuel passing through to the exhaust system
• Carbon build-up in the cylinder
• Cylinder head valve sticking
• Smoking
• Reduced performance
If the engine is stopped suddenly, the turbocharger temperature may rise as much as_____. This may result in seized bearings or loose oil seals.
100°F (56°C)
If the coolant is extremely low and the engine is very hot, allow the engine to cool for at least ____minutes before adding coolant to avoid thermal shock to the engine block resulting in serious engine damage or reduced component life.
15min
To avoid damage to vehicle electronic components, voltage supplied to a vehicle’s electrical system must not exceed ____volts.
16 volts
Explain jumping procedure:
Connect the first jumper cable from the positive (+) terminal of the dead battery or the positive (+) terminal of
the jump-start stud to the positive (+) terminal on the booster battery.
6. Connect one end of the second jumper cable to the negative (–) terminal on the booster battery, and the other
end to the frame of the disabled vehicle at least 18 inches (450 mm) away from the battery. Do not attach the
other end directly to the battery negative (–) terminal because a spark could occur and cause explosion of gases
normally present around the battery.
7. With the jumper cables properly attached, start the engine of the vehicle with the good (charged) battery. Run
the engine at moderate speed.
8. Start the engine in the vehicle with the discharged battery.
Remove the battery cables by reversing the above sequence exactly.
A diesel truck engine may consume over ____ gallons of air for every gallon of fuel that it burns
12500 gallons
Cummins engines use a high quality ____ ( o8l)
15w40