CDC - MWS Water Shuttle Ops
Questions with Accurate Answers
5 factors that impact MWS performance: correct answer loading times
unloading times
vehicle condition
tank size
drive-train capabilities
A single portable water tank works on fires that require: correct answer Relatively
low overall flow rates (less than 300 gpm)
As an example, what is 10% of a 5,000 gallon tank? correct answer 4,500 Gallons
TFR= 5,000 - 10%/Trip Time
TFR= 4,500/Trip Time
Determine the flow rate for a 2,500 gallon MWS shuttling water three miles in
each direction. Assume fill and dump rates are 1,000 gpm. Assume that the
maneuvering and make and break times at each site total two minutes. SHOW
WORK. correct answer 153 gpm on a three mile shuttle op.
During the vacuum service test, the system vacuum and pump priming device
should achieve a column of mercury of at least: correct answer 22"
How is the amount of water dumped calculated? correct answer The tank size in
gallons minus ten percent.
, The ten percent accounts for water that may have spilled or remains in the tank
after the dump valve is closed.
If the amount of water dumped out of a MWS is 4,500 gals and the trip time took
10 minutes, what is the TFR? correct answer TFR = 4,500gal/10min
TFR= 450 gpm for 1 mile shuttle op.
If the portable tanks at the dump site become empty during a emergency then
the: correct answer Dump site pumper should use its tank.
MWS apparatuses dump water into independent tanks and the dump site pumper
drafts water from the portable water tank supplying the attack apparatus. correct
answer Portable water tank operations
MWS apparatuses pump the water from their tanks directly into the fire pump of
the attack apparatus. correct answer Direct pumping operation
One MWS apparatus parks next to the attack apparatus supplying it with a
discharge line or by having the attack apparatus draft directly from its internal
tank. correct answer Nurse Tanker operation
Suppose the dump site and fill site are located 1 mile apart. A 2,000 gallon MWS
apparatus is able to make the round trip in 5 minutes, what is the total flow rate?
SHOW WORK correct answer 360 gpm
The key thing to remember when conducting an inspection of an MWS apparatus
is to: correct answer Be systematic
Questions with Accurate Answers
5 factors that impact MWS performance: correct answer loading times
unloading times
vehicle condition
tank size
drive-train capabilities
A single portable water tank works on fires that require: correct answer Relatively
low overall flow rates (less than 300 gpm)
As an example, what is 10% of a 5,000 gallon tank? correct answer 4,500 Gallons
TFR= 5,000 - 10%/Trip Time
TFR= 4,500/Trip Time
Determine the flow rate for a 2,500 gallon MWS shuttling water three miles in
each direction. Assume fill and dump rates are 1,000 gpm. Assume that the
maneuvering and make and break times at each site total two minutes. SHOW
WORK. correct answer 153 gpm on a three mile shuttle op.
During the vacuum service test, the system vacuum and pump priming device
should achieve a column of mercury of at least: correct answer 22"
How is the amount of water dumped calculated? correct answer The tank size in
gallons minus ten percent.
, The ten percent accounts for water that may have spilled or remains in the tank
after the dump valve is closed.
If the amount of water dumped out of a MWS is 4,500 gals and the trip time took
10 minutes, what is the TFR? correct answer TFR = 4,500gal/10min
TFR= 450 gpm for 1 mile shuttle op.
If the portable tanks at the dump site become empty during a emergency then
the: correct answer Dump site pumper should use its tank.
MWS apparatuses dump water into independent tanks and the dump site pumper
drafts water from the portable water tank supplying the attack apparatus. correct
answer Portable water tank operations
MWS apparatuses pump the water from their tanks directly into the fire pump of
the attack apparatus. correct answer Direct pumping operation
One MWS apparatus parks next to the attack apparatus supplying it with a
discharge line or by having the attack apparatus draft directly from its internal
tank. correct answer Nurse Tanker operation
Suppose the dump site and fill site are located 1 mile apart. A 2,000 gallon MWS
apparatus is able to make the round trip in 5 minutes, what is the total flow rate?
SHOW WORK correct answer 360 gpm
The key thing to remember when conducting an inspection of an MWS apparatus
is to: correct answer Be systematic
