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
DEF fluid should be stored at temperatures between _____ degrees and has a minimum shelf life of ___months.
10-90 degrees
12 months
If the trans sump fluid temperature reaches ____°F, the Electronic Control Unit (ECU) will inhibit operation in the higher ranges.
250 degrees
Brake fade:
If service brakes are required to supplement retardation, apply the brakes in short durations of ___to ___seconds rather than a continuous application. This will minimize heat buildup and reduce the possibility of brake fade.
Brake fade occurs when the brake drums become hot and expand away from the brake shoes and the stroke of the slack adjusters become less effective.
5 to 10 seconds
The indicator light will light and the alarm will sound any time the ignition switch is set to the run position and the pressure in either section is less than approximately ___psi.
60
If air pressure is reduced to approximately ____psi in both systems, the spring brake valve will automatically apply.
40psi
Your apparatus is equipped with a LED Air Guard™
The sensor will activate an integral battery operated LED when the pressure of that tire drops ___ psi.
8psi
The area where the ground pads make contact with the ground must be firm and capable of supporting ___psi
75 psi
Positioning the Truck for Operation
Position unit with the tiller tractor within ___degrees of in line with the tiller trailer. No jackknifing of the unit is
required.
30 degrees
Aerial Capacity Based on Side-to-Side and front to rear Setup Slope
- Full
- Half
- Zero
- 0 to 5
- 5.1 to 8
- > 8
. 7. Install stabilizer jack safety pins (if equipped) keeping the handle about ___inch from jack.
1in
Fifth Wheel Lock-Out Control Lever
Moving lever to the FREE position must be done from the ____side.
Driver
The capacity of the pulley system is ____pounds,
To pick up a 500-lb load, the dead end of the rope must be secured to the ladder handrail.
Dead ends secured otherwise limit the capacity to ____pounds
500
250
The load on lifting eye should not exceed ____ lbs
500
DO NOT run the EPU for more than ___
minutes without allowing an additional ___minutes for cooling down
30 min/30min
Inspecting the door latch strikers. Tighten loose strikers on cab side doors to ___ft-lbs.
55
The cab should not be raised until the air conditioner has been shut-off and the truck has sat with the battery switch ON for at least ___minutes. This will allow the water to be pumped out of the air conditioner unit.
30min
Pierce further recommends considering replacement of the belts at ___year intervals, to reduce the potential failure of the seat belts caused by unapparent damage such as belt
exposure to chemicals or UV radiation.
5 year
Torque the 1.00-8 UNC carriage bolts that fasten the bumper extension to the frame assembly to ___ft-lbs.
400 ft lbs
Front Axle and Tiller Axle Brakes
If the bosses are within ____inch (6.4mm) of the end of the pins or less, remove the wheels and inspect the linings for replacement. Replace at ____inch (3.2mm) thickness.
1/4
1/8th
The drive axle uses a Meritor cam style drum brake. Reline the brakes when the lining thickness is ___inch or less.
1/4
Air Dryer
Replace the desiccant cartridge every ___to __years or more often depending on usage
2 to 3
True or False?
A VOLTMETER SET TO DC WILL NOT INDICATE THE PRESENCE OF AC VOLTAGE WHEN CONNECTED TO AN AC CIRCUIT.
Why
True
When measuring ac system average voltage is 0
Voltage can be fatal at levels greater than ____1volts
60 volts
Constant torque type hose clamps are used on most coolant lines. These clamps should be installed during initial assembly or reassembly with to a torque of in- ____lbs.
The clamp will likely drop in torque value after exposure to hot coolant and should be maintained to a torque of ___ in-lbs thereafter
100 lbs
45
A thermostat is fully open at approximately ___°F (11°C) above the opening temperature.
Where can you find thermostat opening temp
20 degrees
Stamped on thermostat
On all 2007 EPA, 2010 EPA & 2013 EPA diesel engines, the exhaust temperature can reach ____°F during an active regeneration cycle.
1350
Transmission fluid.
Fire trucks are defined as severe vocation due to retarder use and similarity to transit coach operation. Fluid should be changed every ___miles, ___months, or ____hours.
12000 miles/ 6months/ or 500 hours
Steering reservoir
Highway vehicles should have the fluid changed annually or every ___miles
50000 miles
After driving for 1 hour at speeds above the standard maximum rated speeds, or at loads over the maximum side- wall rating, park the apparatus for _______(how long) to allow the tire carcass to cool.
1 hour
Match dual tires so that tires worn to the same diameter are placed together. Do not mount tires together that vary by more than ____inch in diameter or ___inch in circumference.
1/4in diameter
3/4 in circumference
Check torque on wheel nuts after the first ___to ___miles of service
50 to 100
Every ____miles or ____months, grease the fifth wheel bearing connecting the tractor to the tiller
trailer.
3,000 miles or 6 months
Rotation gear box oil capacity?
When properly filled, the oil level should be ____–___in. below the top of the fill hole
5 pints (2.4 liters .21-1.5in from top
Fifth wheel lubrication:
Position tractor at ___ degrees to one side
Dispense 2 pumps of grease every ___ degrees until unit is in the opposite jackknife position ( total positions)?
90 degrees
20 degrees
10 total positions
NFPA standards specify that all equipment required to be used during an emergency response shall be securely fastened to ____G’s
9
Equipped with a _____ aerial ladder
100 ft shortened
The diesel motor is ____ cubic in.
912 cubic in.
Equipped with ___ front axle
Meritor
Equipped with______ front and rear brakes
Meritor
Equipped with Niehoff ___ amp alternator
360 amp
The diesel motor holds _____ qts of motor oil.
44qts
The total tiller steering system holds ___ qts
14 qts
The rotation gear box holds _____pints/_____liters of _____ weight oil
5 pints/ 2.4 liters
80w90
The hydraulic reservoir holds ___qts/___ gal.
160 qts
40 gal.
The total chassis steering system holds ___ qts
6 qts
The tiller steering reservoir holds ___ qts
9qts
The chassi steering fluid reservoir holds ___ qts
4qts
The transmission holds TES 389 ATF with a capacity of ___ qts
31qts
Areas for walking and or standing that are locate higher ___in above the ground and unguarded by a railing or structure are designated by a safety line alongside the outside perimeter.
48in.
Each person climbing the aerial ladder must fall arrest harness and tether that meets the requirements of____
ANSI Z359 (fall protection standard)
When climbing aerial ladders always face ____
The vehicle
Which axel uses meritor MPs brake chambers that are sized 24 x 5 1/2.
Front and tiller
Seatbelt monitoring system (SBMS) is capable of monitoring up to ___ sensors
10
The VDR ____ tool is used to download data from vehicals VDR to a laptop computer
Extraction
The alternator is a c.e. Niehoff model c531, 360 amp with a _____ regulator/rectifier.
Remote
Electrical circuits are protected with circuit breakers and fuses. The vehicles are also equipped with a _____ that utilizes transitors(solid state logic)
Command zone
Load manager, override is intended for quickly turning on all output modes in times of need. Activating the override switch will turn on ports 1 through ______. The override LED flashes to indicate the override mode is active.
16
Power inverter, Samplex converts low voltage doc from the batteries to 115 volt AC power. The inverter is not part of the onboard generator system. The total power output is ____ watts
1125 watts = POWER INVERTER
Diesel fuel shall be ultra low sulfur diesel [ULSD) fuel containing ____ parts per million sulfur content or less.
15
Cold weather guidelines: avoid extended idling [beyond ____min] whenever possible. Maintain a minimum of 1250 rpm by hand throttle or high idle system.
10
If idling for more than 5 min, activate the ___ idle switch to increase speed to at least ____ rpm
Fast
1000
The cab lift cylinders include a ____ in the tilt system. This is a safety device designed to lock fluid in the cylinders in the event that pressure is lost suddenly due to pump failure or broken line.
Velocity fuse
The ____ is the only point where you can actually see inside the air conditioner during operation. Check the window on top of the receiver-dryer.
Sight glass
Pierce uses environmentally acceptable ____ refrigerant, which is hydro fluorocarbon
R -134A
When the ax sight tube is clear the system would include all the following except?
A. System ok
B. Overcharged
C. Low refrigerant
C
