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1. Identify FIVE requirements for a MWS apparatus that 1. An MWS apparatus
can be found in NFPA 1901 equipped with a fire pump
must have a tank to pump
line at least two inches
in diameter and be capa-
ble of supplying the pump
with 500 GPM until at least
80% of the tank is emp-
tied.
2. An MWS apparatus
must be equipped with at
least one external fill con-
nection connected into the
tank that allows the tank to
be filled at a minimum rate
of 1000 GPM.
3. The external fill connec-
tion should be equipped
with a valve, strainer, and a
30 degree elbow.
4.Valves that are three
inches or larger must be of
the slow closing design.
5. An MWS apparatus
must have at least three
large tank discharges ca-
pable of discharging 90%
, Driver Operator Mobile Water Supply
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of the tank volume at an
average of 1000 GPM.
2. When Checking the left front or right front side of the saddle tanks
fire apparatus, don't forget to inspect the:
3. Daily inspection Ensure auxiliary fuel tank is
full
Operate pump primer
Inspect auxiliary winteriza-
tion system.
4. Weekly Inspection Clean intake strainers
5. Pre-service pump certification test are conducted by: An independent testing
agency
6. When using a static body of water as your water source 10 Feet above
during fire apparatus service testing, the water surface
must not be more than___ feet above the centerline of 4 Feet deep
the pump intake and the water must be at least _____
feet deep.
7. If the engine speed check proves the MWS apparatus Stop the testing until the
is running at a different speed than what which it was problem is corrected.
originally rated, you need to?
8. A year has passed and its time conduct the annual vac- Connect 20 Feet of the
uum test on your departments MWS apparatus. You're hard suction hose to the
following the procedures for conducting the vacuum pump intake connection.
test and you've already checked for and removed for-
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eign matter from the hard suction hose. The next step
to perform while conducting the vacuum test is to:
9. When conducting a priming device test and using 30 seconds
a pump of less than 1500 GPM, the priming device
should be able to create the necessary vacuum in ____
seconds to lift water 10 feet through 20 feet of hard
suction hose.
10. Place the steps for conducting a pumping test in the 1. Gradually speed up the
correct order. pump until the net pump
discharge pressure is 150
PSI
2. Use a pitot tube or a flow
meter to check the flow of
water at the nozzle.
3.Record six different
readings at 5-minute in-
tervals for a total of 20
minutes.
4. Set the net pump dis-
charge pressure to 200
PSI.
5. Set the net pump dis-
charge pressure to 250
PSI.
11. Pressure Control Test 1. Engage the pump and
set it to the pump capaci-