Driver Operator Mobile Water
Supply Questions with Accurate
Answers
A hose has a flow rate of 500 gpm with a friction loss of 4 psi, if the flow rate
increases to 1000 gpm, then the friction loss will increase to?? correct answer 16
psi
A major advantage of a positive displacement pump over a centrifugal pump is
that it can? correct answer pump air, making it self priming
A MWS apparatus should be started with all electrical switches in the OFF position
in order to: correct answer Start engine without a load
A single portable water tank works on fires that require? correct answer
Relatively low over flow rates(less than 300 gpm)
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.
An important feature of most screw on intake pressure relief valves is that they?
correct answer Have bleeder valves to vent air when a connected line is being
charged.
,An MWS apparatus may have steering system problems if the steering wheel can
be rotated (without moving front tires) more than: correct answer 10 degrees
As hose diameter increases? correct answer Friction loss decreases
Before performing a quick fill operation you should make sure the tank vents are
open because failure to have adequate venting during this operation could result
in? correct answer A dramatic pressure failure of the tank.
Before you drive a MWS apparatus across a bridge you should? correct answer
compare the weight of the MWS apparatus to the bridges capacity.
Both the fill site time and the dump site time include the time spent? correct
answer Maneuvering/positioning
Braking Distance correct answer Distance a MWS apparatus travels from the time
the brakes are applied until the MWS apparatus comes to a complete stop.
Centrifugal correct answer Is not self priming
Clearance between impeller hub and housing can be a problem
Compound gauge correct answer Checks the pump intake pressure
Daily inspection correct answer Ensure auxiliary fuel tank is full
, Operate pump primer
Inspect auxiliary winterization system.
Direct pumping operation
Nurse tanker operation
Portable water tank operation correct answer 1. MWS apparatuses pump water
from their tanks directly into the fire pump of the attack apparatus.
2. One MWS apparatus parks next to the attack apparatus supplying it with a
discharge line
3. MWS apparatuses dump water into independent tanks and the dump site
pumper drafts
Discharge pressure gauge test correct answer Checks accuracy of discharge
readings obtained when pump is in operation
During MWS apparatus service testing, the atmospheric air temperature should
be between: correct answer 0 degree F and 100 degree F
During resupply operation which formula is used to determine the pump
discharge pressure? correct answer PDP-Required Intake Pressure+TPL
Engine speed check correct answer Checks the rate of the engine speed
Supply Questions with Accurate
Answers
A hose has a flow rate of 500 gpm with a friction loss of 4 psi, if the flow rate
increases to 1000 gpm, then the friction loss will increase to?? correct answer 16
psi
A major advantage of a positive displacement pump over a centrifugal pump is
that it can? correct answer pump air, making it self priming
A MWS apparatus should be started with all electrical switches in the OFF position
in order to: correct answer Start engine without a load
A single portable water tank works on fires that require? correct answer
Relatively low over flow rates(less than 300 gpm)
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.
An important feature of most screw on intake pressure relief valves is that they?
correct answer Have bleeder valves to vent air when a connected line is being
charged.
,An MWS apparatus may have steering system problems if the steering wheel can
be rotated (without moving front tires) more than: correct answer 10 degrees
As hose diameter increases? correct answer Friction loss decreases
Before performing a quick fill operation you should make sure the tank vents are
open because failure to have adequate venting during this operation could result
in? correct answer A dramatic pressure failure of the tank.
Before you drive a MWS apparatus across a bridge you should? correct answer
compare the weight of the MWS apparatus to the bridges capacity.
Both the fill site time and the dump site time include the time spent? correct
answer Maneuvering/positioning
Braking Distance correct answer Distance a MWS apparatus travels from the time
the brakes are applied until the MWS apparatus comes to a complete stop.
Centrifugal correct answer Is not self priming
Clearance between impeller hub and housing can be a problem
Compound gauge correct answer Checks the pump intake pressure
Daily inspection correct answer Ensure auxiliary fuel tank is full
, Operate pump primer
Inspect auxiliary winterization system.
Direct pumping operation
Nurse tanker operation
Portable water tank operation correct answer 1. MWS apparatuses pump water
from their tanks directly into the fire pump of the attack apparatus.
2. One MWS apparatus parks next to the attack apparatus supplying it with a
discharge line
3. MWS apparatuses dump water into independent tanks and the dump site
pumper drafts
Discharge pressure gauge test correct answer Checks accuracy of discharge
readings obtained when pump is in operation
During MWS apparatus service testing, the atmospheric air temperature should
be between: correct answer 0 degree F and 100 degree F
During resupply operation which formula is used to determine the pump
discharge pressure? correct answer PDP-Required Intake Pressure+TPL
Engine speed check correct answer Checks the rate of the engine speed
