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CDC - Mobile Water Supply Questions with correct Answers
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CDC - Mobile Water Supply
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CDC - Mobile Water Supply- answer
How many inches of mercury should the priming device and pump achieve? - answer22
inches
Explain the priming device test. - answer Evaluates how quickly a priming device can
create the necessary vacuum to bring water through a pump to the discharge hose.
According to what NFPA, how much water must an apparatus carry to be considered a
MWS or Tender? – answer NFPA 1901 Standard for Automotive Fire Apparatus,
At least 1,000 gallons.
Most MWS apparatuses in use today carry, how many gallons of water? - answer
Between 1,500 and 3,000 gallons of water.
Each department must choose the size of the tank for its apparatus based on what? -
answer Local water requirements
Water system limitations
Road conditions
Bridge weight restrictions
What size water tanks are the most efficient during water shuttle operations? -
answerMWS with tanks less than 2,500 gallons.
What size water tanks are the most efficient during stationary water supply operations?
- answerMWS with tanks for the 2,500 gallons.
What three external fill connections can be equipped on the MWS apparatus? -
answer1. Allows the tank to be filled at a min rate of 1,000 gals/min.
2. Equipped with a valve, strainer, and a 30 degree elbow.
3. Has Valves of slow-closing design (if three inches or larger).
Where should the tank discharge be located on the MWS apparatus? - answerOn the
left, right, and rear of the apparatus.
The tank discharge should be capable of discharging how much of the tank volume at
what rate? - answer90% of the tank volume at an average of 1,000 gpm.
Medium diameter hose supply lines are used for filling then... - answerthe MWS should
have at least two external or direct tank fill intakes piped directly to the tank.
, Large diameter hose is used then... - answerone connection to the tank is adequate.
If the MWS apparatus is equipped with a FIRE PUMP, it may be referred to as a...
and must have a tank-to-pump line that is: - answerTanker-pumper or a tender-pumper.
1. Capable of supplying the pump with a 500 gpm until at least 80% of the water in the
tank is emptied.
2. At least two inches diameter.
The large tank discharge is commonly referred to as: - answerDump valve
What NFPA requires three dump valves to be installed on all MWS apparatus? -
answerNFPA 1901
As you move around the apparatus, what general problems are you looking for? -
answerFluid leaks, dents, low tire pressure, cleanliness, and broken, or missing
equipment.
When looking at the body panel, what should you be looking for? - answerLooking for
rust, dents, or exposed areas needing touch-up paint.
When looking at the windows and exterior lights, what should you be looking for? -
answerLooking for cracks and discoloration.
When looking at the circuit breakers and/or fuses what should you be looking for? -
answerLooking at the main panel to see if any circuits are tripped or if any fuses are
blown.
Engine compartment: Engine oil - answerCheck whether engine oil is clean and at full
mark.
Engine compartment: air Filter Restriction Gauge - answerCheck the air filter restriction
gauge to determine if the air filter needs to be changed.
Engine compartment: Coolant Overflow Reservoir - answerCoolant in the overflow
reservoir should be clean and halfway between max and min level for your apparatus.
Engine compartment: Cooling Fan, Hoses, and Radiator - answerCheck the cooling fan,
hoses, and the radiator for cracks.
Engine compartment: Windshield Washer Fluid - answerCheck the windshield washer
fluid level.
Engine compartment: Batteries - answerCheck the terminals for corrosion and clean in
accordance with the manufacturers specifications.
Inspect battery cables for any loose connections
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