MWS CCRE Exam with Complete Solutions
The purpose of the priming device test is to: - AnswerEvaluate how quickly the priming
device can create a vacuum to bring water through a pumpto the discharge hose.
Identify TWO items that should be included on daily MWS apparatus records. -
AnswerCoolant levels
Traveling at high speeds on a curvy road may cause an MWS apparatus to: -
AnswerLeave the road surface and roll over.
Identify the THREE steps for changing to the left lane on a limited access highway. -
Answer1. Check the side and rear view mirrors.
2. Activate the turn signal.
3. Move the apparatus safely to the left lane.
Identify the FOUR steps for passing through a straight section of a road or highway. -
Answer1. Maintain apparatus speed.
2. Check the side streets or roads.
3. Check the side and rear view mirrors.
4. Check for oncoming traffic.
When performing the serpentine exercise, you: - AnswerShould only travel in one
direction, without striking the obstruction.
All of the following statements about driving an MWS apparatus through areas of
restricted horizontal and vertical clearances are true EXCEPT: - AnswerUse the
appropriate turn signal.
The best type of strainer to use in a shallow stream is a: - AnswerFloating strainer.
NFPA rates all fire pumps to meet their capacity from a draft at: - Answer10 feet of lift.
Which equation is used to determine the elevation pressure loss for resupplying a
pumper located approximately 20 feet above the location of the MWS? - AnswerEP =
0.5x20
The best definition of water pressure is the: - AnswerForce of water per unit area.
All of the following factors must be included when determining the total pressure loss
(TPL) EXCEPT: - AnswerPump pressure loss
The hand method can be used for estimating the friction loss in a hoseline with a
diameter of: - Answer2 1/2 inches
Large diameter hoses are generally defined as hoses with a diameter between: -
Answer4-6 inches.
When a dry supply line is being charged, it is important to open the: - AnswerBleeder
valve.
One of the drawbacks of a piston positive displacement pump is the: - AnswerFire
stream tends to pulsate.
To correct for lateral thrust wear on parts in centrifugal pumps, the pump: - AnswerHas
water enter the impeller in both directions.
NFPA 1901 requires that an MWS apparatus that uses medium diameter hose (MDH)
supply lines for filling should have at least ________ external fill connection (s) piped
directly to the tank: - AnswerOne.
, Narrow roads - AnswerDifficulty passing other vehicles and the possibility of getting the
apparatus tires off the road surface.
Long driveways - AnswerWhen two apparatus approach from opposite directions, one
may be forced to back out.
Blind curves and intersections - AnswerDriver/operator cannot see oncoming cross
traffic and drivers of non-emergency vehicles cannot see oncoming apparatus.
Winding roads - AnswerRequire a lot of concentration on the part of the driver/operator;
one slight slip can result in a collision.
Steep grades - AnswerBrake fade can result in the driver/operator being unable to slow
or stop the apparatus.
Inclement weather conditions - AnswerRoads may not be clear; there may be debris
that should be avoided.
When a fire scene is located down a narrow lane, it is BEST to locate the dump site: -
AnswerAt the intersection where the lane meets a thoroughfare.
When operating a water shuttle operation involving a fill site pumper with 2 1/2-inch fill
lines, what is the recommended total number of make and break personnel that should
be involved? - Answer2.
At a fill site, a cone or similar device is used to: - AnswerMark the stopping point for an
MWS apparatus.
The type of dump site operation in which MWS apparatuses dump water into
independent tanks and the dump site pumper drafts water from the tanks and supplies
the attack apparatus is referred to as a: - AnswerPortable water tank operation.
At a water shuttle operation, the second and subsequent mobile water supply
apparatuses may leave the dump site once: - AnswerTheir entire load has been
dumped.
The MOST efficient method of transferring water between portable water tanks is to: -
AnswerUse jet siphons.
All of the following are methods of water discharge used at the dump site EXCEPT: -
AnswerDraining.
To determine the handling time in a flow rate calculation, add the fill site time and the
dump site time, including the time spent: - AnswerTo position the MWS apparatus at the
fill and dump sites, to make and break, and to fill and dump.
At a water shuttle operation, the amount of water dumped is the amount of water the
tank holds less: - Answer10%.
During an MWS apparatus inspection, the lowest acceptable fuel gauge reading is: -
AnswerAt least 3/4-full.
During the vacuum service test, the system vacuum and pump priming device should
achieve a column of mercury of at least: - Answer22 inches.
Most jurisdictions prefer to draft from a static water source during service testing
because it: - AnswerIs a true test of the pump's ability.
It is recommended that fuel, oil, and mileage records be updated: - AnswerAs
determined by the jurisdiction.
Identify THREE conditions where you should drive an MWS apparatus in low gear. -
Answer1. Traveling around a corner.
2. Approaching an intersection.
3. Climbing a hill.
The purpose of the priming device test is to: - AnswerEvaluate how quickly the priming
device can create a vacuum to bring water through a pumpto the discharge hose.
Identify TWO items that should be included on daily MWS apparatus records. -
AnswerCoolant levels
Traveling at high speeds on a curvy road may cause an MWS apparatus to: -
AnswerLeave the road surface and roll over.
Identify the THREE steps for changing to the left lane on a limited access highway. -
Answer1. Check the side and rear view mirrors.
2. Activate the turn signal.
3. Move the apparatus safely to the left lane.
Identify the FOUR steps for passing through a straight section of a road or highway. -
Answer1. Maintain apparatus speed.
2. Check the side streets or roads.
3. Check the side and rear view mirrors.
4. Check for oncoming traffic.
When performing the serpentine exercise, you: - AnswerShould only travel in one
direction, without striking the obstruction.
All of the following statements about driving an MWS apparatus through areas of
restricted horizontal and vertical clearances are true EXCEPT: - AnswerUse the
appropriate turn signal.
The best type of strainer to use in a shallow stream is a: - AnswerFloating strainer.
NFPA rates all fire pumps to meet their capacity from a draft at: - Answer10 feet of lift.
Which equation is used to determine the elevation pressure loss for resupplying a
pumper located approximately 20 feet above the location of the MWS? - AnswerEP =
0.5x20
The best definition of water pressure is the: - AnswerForce of water per unit area.
All of the following factors must be included when determining the total pressure loss
(TPL) EXCEPT: - AnswerPump pressure loss
The hand method can be used for estimating the friction loss in a hoseline with a
diameter of: - Answer2 1/2 inches
Large diameter hoses are generally defined as hoses with a diameter between: -
Answer4-6 inches.
When a dry supply line is being charged, it is important to open the: - AnswerBleeder
valve.
One of the drawbacks of a piston positive displacement pump is the: - AnswerFire
stream tends to pulsate.
To correct for lateral thrust wear on parts in centrifugal pumps, the pump: - AnswerHas
water enter the impeller in both directions.
NFPA 1901 requires that an MWS apparatus that uses medium diameter hose (MDH)
supply lines for filling should have at least ________ external fill connection (s) piped
directly to the tank: - AnswerOne.
, Narrow roads - AnswerDifficulty passing other vehicles and the possibility of getting the
apparatus tires off the road surface.
Long driveways - AnswerWhen two apparatus approach from opposite directions, one
may be forced to back out.
Blind curves and intersections - AnswerDriver/operator cannot see oncoming cross
traffic and drivers of non-emergency vehicles cannot see oncoming apparatus.
Winding roads - AnswerRequire a lot of concentration on the part of the driver/operator;
one slight slip can result in a collision.
Steep grades - AnswerBrake fade can result in the driver/operator being unable to slow
or stop the apparatus.
Inclement weather conditions - AnswerRoads may not be clear; there may be debris
that should be avoided.
When a fire scene is located down a narrow lane, it is BEST to locate the dump site: -
AnswerAt the intersection where the lane meets a thoroughfare.
When operating a water shuttle operation involving a fill site pumper with 2 1/2-inch fill
lines, what is the recommended total number of make and break personnel that should
be involved? - Answer2.
At a fill site, a cone or similar device is used to: - AnswerMark the stopping point for an
MWS apparatus.
The type of dump site operation in which MWS apparatuses dump water into
independent tanks and the dump site pumper drafts water from the tanks and supplies
the attack apparatus is referred to as a: - AnswerPortable water tank operation.
At a water shuttle operation, the second and subsequent mobile water supply
apparatuses may leave the dump site once: - AnswerTheir entire load has been
dumped.
The MOST efficient method of transferring water between portable water tanks is to: -
AnswerUse jet siphons.
All of the following are methods of water discharge used at the dump site EXCEPT: -
AnswerDraining.
To determine the handling time in a flow rate calculation, add the fill site time and the
dump site time, including the time spent: - AnswerTo position the MWS apparatus at the
fill and dump sites, to make and break, and to fill and dump.
At a water shuttle operation, the amount of water dumped is the amount of water the
tank holds less: - Answer10%.
During an MWS apparatus inspection, the lowest acceptable fuel gauge reading is: -
AnswerAt least 3/4-full.
During the vacuum service test, the system vacuum and pump priming device should
achieve a column of mercury of at least: - Answer22 inches.
Most jurisdictions prefer to draft from a static water source during service testing
because it: - AnswerIs a true test of the pump's ability.
It is recommended that fuel, oil, and mileage records be updated: - AnswerAs
determined by the jurisdiction.
Identify THREE conditions where you should drive an MWS apparatus in low gear. -
Answer1. Traveling around a corner.
2. Approaching an intersection.
3. Climbing a hill.
