Driver Operator Mobile Water Supply| Technical Exam Questions and Answers| Rated A 2025
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Course
Mobile Water Supply
Institution
Mobile Water Supply
Driver Operator Mobile Water Supply|
Technical Exam Questions and Answers|
Rated A 2025
Identify FIVE requirements for a MWS apparatus that can be found in NFPA 1901 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 o...
Driver Operator Mobile Water Supply|
Technical Exam Questions and Answers|
Rated A 2025
Identify FIVE requirements for a MWS apparatus that can be found in NFPA 1901 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.
List FIVE essential components of an MWS apparatus required for effective pumping operations.
1. Fire pump capable of delivering high GPM flow rates.
2. Tank-to-pump line with a minimum two-inch diameter for high-volume water supply.
3. Discharge valves designed for rapid water release, including slow-closing valves for safety.
1
, 4. External fill connection to allow efficient tank refilling at the scene.
5. Pressure relief valve to prevent over-pressurization during pumping.
Describe FIVE maintenance checks for MWS apparatus pumping equipment to ensure
operational readiness.
1. Inspect all pump connections and hoses for leaks or damage.
2. Test the fire pump to verify it meets the required GPM capacity.
3. Check the functionality of the pressure relief valve to prevent overpressure.
4. Ensure discharge valves open and close smoothly without sticking.
5. Verify that the tank-to-pump line is clear and capable of consistent water supply.
Identify FIVE safety procedures for operating an MWS pump during fire operations.
1. Ensure all hoses are properly connected and secured before engaging the pump.
2. Monitor pressure gauges to avoid over-pressurization.
3. Use slow-closing valves to avoid water hammer and sudden pressure changes.
4. Position apparatus on level ground to prevent tipping, especially on slopes.
5. Assign a spotter to monitor for hose kinks or leaks during active pumping.
List FIVE NFPA requirements for mobile water supply pumping apparatus during water shuttle
operations.
1. Pump must be capable of delivering a minimum of 500 GPM to support water flow.
2
, 2. Apparatus must have multiple dump valves for rapid unloading at shuttle sites.
3. Tank-to-pump line should supply the pump until at least 80% of the tank is empty.
4. External fill connection must allow tank refilling at a minimum rate of 1,000 GPM.
5. Discharge outlets should be equipped with strainers to prevent debris from entering hoses.
Explain FIVE functions of a portable tank in mobile water supply operations.
1. Provides a temporary reservoir to hold water near the fire scene.
2. Allows continuous water supply when tankers arrive at intervals.
3. Helps to establish a buffer for uninterrupted pumping operations.
4. Prevents downtime in water supply during shuttle operations.
5. Enables the use of multiple portable tanks for increased water storage capacity.
Describe FIVE important features of a high-capacity MWS pump for rural firefighting.
1. Ability to draft water from static sources like ponds or lakes.
2. High GPM capacity to meet water demands at rural fire scenes.
3. Sturdy frame to withstand rough terrain and transport conditions.
4. Rapid-fill capability to minimize turnaround time during shuttle operations.
5. Adjustable pressure settings to support different firefighting needs.
List FIVE factors to consider when setting up a fill site for mobile water supply operations.
1. Proximity to a reliable water source, such as a hydrant, lake, or pond.
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