CDC MWS CCRE
Place the steps for part two of the pressure control test in the correct order: -
ANSWER 1. Set the fire pump so that it is discharging at a net pump discharge
pressure of 150 psi.
2. Reduce the pumping engine throttle until the net pump discharge pressure drops
to 90 psi
3. Set the pressure control device to maintain the discharge pressure at 90 psi
4. Close the flowing valves one at a time.
5. The pump discharge pressure should rise no more than 30 psi when all valves are
closed.
Two items that should be included on daily MWS records: - ANSWER 1. Tire
Conditions
2. Coolant levels
What re two daily inspection two perfom on a MWS equipped with a fire pump? -
ANSWER 1. Operate the pump drive control
2. Confirm that the foam tank level is full.
Testing the discharge pressure gauge begins by: - ANSWER Disconnecting all
preconnected hose lines and screwing all caps onto their discharges.
What is total stopping distance? - ANSWER The sum of the driver/operator reaction
distance and the MWS' braking distance.
Three things you should do when turning an MWS 180 degrees? - ANSWER 1.
make sure you can see your spotter
2. Be aware of any obstructions in your line of travel
3. use the side view mirrors equipped on the MWS
When performing the serpentine exercise, you should what? - ANSWER Should
only travel on one direction, without striking the obstruction.
Two facts about looping mains in a distribution grid? - ANSWER 1. They create a
constant flow and less sediment forms in the pipes.
2. They ensure that water flows from two directions into hydrants.
When a fire scene is located down a narrow lane, it is BEST to locate the dump site:
- ANSWER At the intersection where the lane meets a thoroughfare.
What is the advantage of using an MWS with a Jet-assisted dump is that: -
ANSWER The in-line discharge creates a Venturi effect increasing the water flow
through the large tank discharge.
The fill site for a water shuttle operation may be shut down when: - ANSWER all
MWS have been refilled.
Place the steps for part two of the pressure control test in the correct order: -
ANSWER 1. Set the fire pump so that it is discharging at a net pump discharge
pressure of 150 psi.
2. Reduce the pumping engine throttle until the net pump discharge pressure drops
to 90 psi
3. Set the pressure control device to maintain the discharge pressure at 90 psi
4. Close the flowing valves one at a time.
5. The pump discharge pressure should rise no more than 30 psi when all valves are
closed.
Two items that should be included on daily MWS records: - ANSWER 1. Tire
Conditions
2. Coolant levels
What re two daily inspection two perfom on a MWS equipped with a fire pump? -
ANSWER 1. Operate the pump drive control
2. Confirm that the foam tank level is full.
Testing the discharge pressure gauge begins by: - ANSWER Disconnecting all
preconnected hose lines and screwing all caps onto their discharges.
What is total stopping distance? - ANSWER The sum of the driver/operator reaction
distance and the MWS' braking distance.
Three things you should do when turning an MWS 180 degrees? - ANSWER 1.
make sure you can see your spotter
2. Be aware of any obstructions in your line of travel
3. use the side view mirrors equipped on the MWS
When performing the serpentine exercise, you should what? - ANSWER Should
only travel on one direction, without striking the obstruction.
Two facts about looping mains in a distribution grid? - ANSWER 1. They create a
constant flow and less sediment forms in the pipes.
2. They ensure that water flows from two directions into hydrants.
When a fire scene is located down a narrow lane, it is BEST to locate the dump site:
- ANSWER At the intersection where the lane meets a thoroughfare.
What is the advantage of using an MWS with a Jet-assisted dump is that: -
ANSWER The in-line discharge creates a Venturi effect increasing the water flow
through the large tank discharge.
The fill site for a water shuttle operation may be shut down when: - ANSWER all
MWS have been refilled.
