Driver Operator Mobile Water Supply Exam
Questions With Correct Answers
Identify FIVE requirements for a MWS apparatus that can be found in NFPA 1901 -
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|CORRECT ANSWER✔✔-1. An MWS apparatus equipped with a fire pump must
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have a tank to pump line at least two inches in diameter and be capable of
| | | | | | | | | | | | | | | |
supplying the pump with 500 GPM until at least 80% of the tank is emptied.
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2. An MWS apparatus must be equipped with at least one external fill connection
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connected into the tank that allows the tank to be filled at a minimum rate of
| | | | | | | | | | | | | | | |
1000 GPM.
|
3. The external fill connection 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.
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5. An MWS apparatus must have at least three large tank discharges capable of
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discharging 90% of the tank volume at an average of 1000 GPM.
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When Checking the left front or right front side of the fire apparatus, don't forget
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to inspect the: - CORRECT ANSWER✔✔-saddle tanks
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Daily inspection - CORRECT ANSWER✔✔-Ensure auxiliary fuel tank is full
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,Operate pump primer | |
Inspect auxiliary winterization system.
| | |
Weekly Inspection - CORRECT ANSWER✔✔-Clean intake strainers
| | | | | |
Pre-service pump certification test are conducted by: - CORRECT ANSWER✔✔-An
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independent testing agency | |
When using a static body of water as your water source during fire apparatus
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service testing, the water surface must not be more than___ feet above the
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centerline of the pump intake and the water must be at least _____ feet deep. -
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CORRECT ANSWER✔✔-10 Feet above | | |
4 Feet deep
| |
If the engine speed check proves the MWS apparatus is running at a different
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speed than what which it was originally rated, you need to? - CORRECT
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ANSWER✔✔-Stop the testing until the problem is corrected. | | | | | | |
A year has passed and its time conduct the annual vacuum test on your
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departments MWS apparatus. You're following the procedures for conducting the
| | | | | | | | |
|vacuum test and you've already checked for and removed foreign matter from
| | | | | | | | | | | |
the hard suction hose. The next step to perform while conducting the vacuum
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test is to: - CORRECT ANSWER✔✔-Connect 20 Feet of the hard suction hose to
| | | | | | | | | | | | | |
the pump intake connection.
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, When conducting a priming device test and using a pump of less than 1500 GPM,
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the priming device should be able to create the necessary vacuum in ____
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seconds to lift water 10 feet through 20 feet of hard suction hose. - CORRECT
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ANSWER✔✔-30 seconds |
Place the steps for conducting a pumping test in the correct order. - CORRECT
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ANSWER✔✔-1. Gradually speed up the pump until the net pump discharge
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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 intervals for a total of 20 minutes.
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4. Set the net pump discharge pressure to 200 PSI.
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5. Set the net pump discharge pressure to 250 PSI.
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Pressure Control Test - CORRECT ANSWER✔✔-1. Engage the pump and set it to
| | | | | | | | | | | | |
the pump capacity.
| |
2. Set the pressure control device.
| | | | |
3. Close the discharge valves.
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4. Note the pump discharge
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Questions With Correct Answers
Identify FIVE requirements for a MWS apparatus that can be found in NFPA 1901 -
| | | | | | | | | | | | | |
|CORRECT ANSWER✔✔-1. An MWS apparatus equipped with a fire pump must
| | | | | | | | | | |
have a tank to pump line at least two inches in diameter and be capable of
| | | | | | | | | | | | | | | |
supplying the pump with 500 GPM until at least 80% of the tank is emptied.
| | | | | | | | | | | | | | |
2. An MWS apparatus must be equipped with at least one external fill connection
| | | | | | | | | | | | | |
connected into the tank that allows the tank to be filled at a minimum rate of
| | | | | | | | | | | | | | | |
1000 GPM.
|
3. The external fill connection 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 capable of
| | | | | | | | | | | | | |
discharging 90% of the tank volume at an average of 1000 GPM.
| | | | | | | | | | |
When Checking the left front or right front side of the fire apparatus, don't forget
| | | | | | | | | | | | | | |
to inspect the: - CORRECT ANSWER✔✔-saddle tanks
| | | | | |
Daily inspection - CORRECT ANSWER✔✔-Ensure auxiliary fuel tank is full
| | | | | | | | |
,Operate pump primer | |
Inspect auxiliary winterization system.
| | |
Weekly Inspection - CORRECT ANSWER✔✔-Clean intake strainers
| | | | | |
Pre-service pump certification test are conducted by: - CORRECT ANSWER✔✔-An
| | | | | | | | | |
independent testing agency | |
When using a static body of water as your water source during fire apparatus
| | | | | | | | | | | | | |
service testing, the water surface must not be more than___ feet above the
| | | | | | | | | | | | |
centerline of the pump intake and the water must be at least _____ feet deep. -
| | | | | | | | | | | | | | | |
CORRECT ANSWER✔✔-10 Feet above | | |
4 Feet deep
| |
If the engine speed check proves the MWS apparatus is running at a different
| | | | | | | | | | | | | |
speed than what which it was originally rated, you need to? - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-Stop the testing until the problem is corrected. | | | | | | |
A year has passed and its time conduct the annual vacuum test on your
| | | | | | | | | | | | | |
departments MWS apparatus. You're following the procedures for conducting the
| | | | | | | | |
|vacuum test and you've already checked for and removed foreign matter from
| | | | | | | | | | | |
the hard suction hose. The next step to perform while conducting the vacuum
| | | | | | | | | | | | |
test is to: - CORRECT ANSWER✔✔-Connect 20 Feet of the hard suction hose to
| | | | | | | | | | | | | |
the pump intake connection.
| | |
, When conducting a priming device test and using 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. - CORRECT
| | | | | | | | | | | | | | |
ANSWER✔✔-30 seconds |
Place the steps for conducting a pumping test in the correct order. - CORRECT
| | | | | | | | | | | | | |
ANSWER✔✔-1. Gradually speed up the 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 intervals for a total of 20 minutes.
| | | | | | | | | | | | |
4. Set the net pump discharge pressure to 200 PSI.
| | | | | | | | | |
5. Set the net pump discharge pressure to 250 PSI.
| | | | | | | | |
Pressure Control Test - CORRECT ANSWER✔✔-1. Engage the pump and set it to
| | | | | | | | | | | | |
the pump capacity.
| |
2. Set the pressure control device.
| | | | |
3. Close the discharge valves.
| | | |
4. Note the pump discharge
| | | |
