MWS CDC EXAM QUESTIONS AND VERIFIED ANSWERS
y y y y y y
190 QUESTIONS AND ANSWERS
y y y
Identify five reqiuremennts for an MWS app that can be found in NFPA1901 -
y y y y y y y y y y y y y
yANSWER visual/ operational checks and preventative maintenance
y y y y y y
Preservice pump certification tests are conducted by - ANSWER An
y y y y y y y y y
independent testing agency y y
If the engine speed check proves the MWS app is running at a different speed th
y y y y y y y y y y y y y y y
an that which it was originally rated you need to. - ANSWER Stop the testing
y y y y y y y y y
until the problem is corrected
When conducting the priming device test and using a pump of less than 1500
gpm the priming device should be able to create the necessary vacuum in
sec to lift 10ft through 20ft of hard section hose - ANSWER 30 sec
Pumping test in the correct order - ANSWER 1 gradually speed up the pump
until the net pump discharge pressure is 150 psi
2 use a pitot tube or flowmeter to check the flow of water at the nozzle
3 record six different readings at 5 min intervals for a total of 2o min
Set the net pump discharge pressure to 200psi
Set the net pump discharge pressure to 250psi
The three parts of the pressure control test requires you to coles the flowing
valves one at a time - ANSWER No less than 3 sec no more than 10 sec
The guage and flow test compares flowmeter readings with actual pitot tube
readings. The two readings should differ by no more than: - ANSWER 10%
The tank to pump rate test mesures whether the pimping between an apparatus
water tank anf the fire pump meets the minimum flow standards of - ANSWER
NFPA 1901
,Match the equipment needed for conducting fire pump service test with its
correct function.
Checks the pump intake pressure
Checks engine speed
Needed to match the volumes pumped for the different test
Secures test nozzles
Measures the velocity pressure of a stream of water
Reads the flow of water directly in gpm - ANSWER Compound guages
Tachometer
Solid stream nozzle
Rope or test nd
Pitot tube
Identify the two most important reasons for maintaining good MWS app records
- ANSWER Keeps everyone on the team informed about equipment conditions
Helps determine whether equipment should be repaired or replaced
Match the items
Daily rec
Weekly rec
Periodic rec
Fuel, oil, and mileage rec - ANSWER Fuel level
Pump primer
Safety inspection
Oil filter changes
An MWS app should be started with all the switches in teh off position in order
to - ANSWER Start the engine without a load
When performing a vacuum service test, once the engine is turned off, the
column of mercury should fall no more than - ANSWER 10in in 5min
During MWS app service testing, the atmospheric air temp Should be between
0C- 100F - ANSWER 0C- 100F
NFPA 1911 requires an MWS app equipped with a fire pump to be service
tested - ANSWER At least once a year or when it has undergone extensive
pump repair
, What is the best explanation for characteristics of an MWS apparatus -
ANSWER An individual personality- each apparatus may perform, react, and
handle differently.
Left turn - ANSWER 1Activate signal
2Check side and rearview mirror
3 move MWS to left lane, if necessary
4 check for in comin traffic
5 check to see of the side street or road is clear
6 safety make left turn
All of the following are mandatory steps for driving an MWS app through an
intersection without a stop sign ot stoplight and clear of traffic except -
ANSWER Bring the app to a complete stop. **
Approach the intersection with caution
check left, right , and left again for oncommmg traffic
Proceed through the intersection cautiously
I dentify three situations were you should be aware of your MWS app
dimensions to avoid a possible hazard - ANSWER Travel under an overpass
Backing into a mutual aid fire department stall
Maneuvering around parked cars
Starting an MWS app in the correct order - ANSWER Disconnect all auxiliary
electrical and air sources.Turn the apparatus batteries.Start the engine.Observe
the apparatus gauges.Check seat, mirrors, and steering wheel adjustments.Check
that all crewmembers have fasten their seatbelts.
When entering a limited acces highway the last thing you should do before
moving the MWS app from the acceleration lane into the highway is -
ANSWER Check side and rearview mirrors
In order to properly drive on a down grade slope you must execute four steps,
down shift entering the grade, make sure the MWS app is in gear, use brakes
and low gears- what is the missing step - ANSWER Limit the engine rpm-
below redline
y y y y y y
190 QUESTIONS AND ANSWERS
y y y
Identify five reqiuremennts for an MWS app that can be found in NFPA1901 -
y y y y y y y y y y y y y
yANSWER visual/ operational checks and preventative maintenance
y y y y y y
Preservice pump certification tests are conducted by - ANSWER An
y y y y y y y y y
independent testing agency y y
If the engine speed check proves the MWS app is running at a different speed th
y y y y y y y y y y y y y y y
an that which it was originally rated you need to. - ANSWER Stop the testing
y y y y y y y y y
until the problem is corrected
When conducting the priming device test and using a pump of less than 1500
gpm the priming device should be able to create the necessary vacuum in
sec to lift 10ft through 20ft of hard section hose - ANSWER 30 sec
Pumping test in the correct order - ANSWER 1 gradually speed up the pump
until the net pump discharge pressure is 150 psi
2 use a pitot tube or flowmeter to check the flow of water at the nozzle
3 record six different readings at 5 min intervals for a total of 2o min
Set the net pump discharge pressure to 200psi
Set the net pump discharge pressure to 250psi
The three parts of the pressure control test requires you to coles the flowing
valves one at a time - ANSWER No less than 3 sec no more than 10 sec
The guage and flow test compares flowmeter readings with actual pitot tube
readings. The two readings should differ by no more than: - ANSWER 10%
The tank to pump rate test mesures whether the pimping between an apparatus
water tank anf the fire pump meets the minimum flow standards of - ANSWER
NFPA 1901
,Match the equipment needed for conducting fire pump service test with its
correct function.
Checks the pump intake pressure
Checks engine speed
Needed to match the volumes pumped for the different test
Secures test nozzles
Measures the velocity pressure of a stream of water
Reads the flow of water directly in gpm - ANSWER Compound guages
Tachometer
Solid stream nozzle
Rope or test nd
Pitot tube
Identify the two most important reasons for maintaining good MWS app records
- ANSWER Keeps everyone on the team informed about equipment conditions
Helps determine whether equipment should be repaired or replaced
Match the items
Daily rec
Weekly rec
Periodic rec
Fuel, oil, and mileage rec - ANSWER Fuel level
Pump primer
Safety inspection
Oil filter changes
An MWS app should be started with all the switches in teh off position in order
to - ANSWER Start the engine without a load
When performing a vacuum service test, once the engine is turned off, the
column of mercury should fall no more than - ANSWER 10in in 5min
During MWS app service testing, the atmospheric air temp Should be between
0C- 100F - ANSWER 0C- 100F
NFPA 1911 requires an MWS app equipped with a fire pump to be service
tested - ANSWER At least once a year or when it has undergone extensive
pump repair
, What is the best explanation for characteristics of an MWS apparatus -
ANSWER An individual personality- each apparatus may perform, react, and
handle differently.
Left turn - ANSWER 1Activate signal
2Check side and rearview mirror
3 move MWS to left lane, if necessary
4 check for in comin traffic
5 check to see of the side street or road is clear
6 safety make left turn
All of the following are mandatory steps for driving an MWS app through an
intersection without a stop sign ot stoplight and clear of traffic except -
ANSWER Bring the app to a complete stop. **
Approach the intersection with caution
check left, right , and left again for oncommmg traffic
Proceed through the intersection cautiously
I dentify three situations were you should be aware of your MWS app
dimensions to avoid a possible hazard - ANSWER Travel under an overpass
Backing into a mutual aid fire department stall
Maneuvering around parked cars
Starting an MWS app in the correct order - ANSWER Disconnect all auxiliary
electrical and air sources.Turn the apparatus batteries.Start the engine.Observe
the apparatus gauges.Check seat, mirrors, and steering wheel adjustments.Check
that all crewmembers have fasten their seatbelts.
When entering a limited acces highway the last thing you should do before
moving the MWS app from the acceleration lane into the highway is -
ANSWER Check side and rearview mirrors
In order to properly drive on a down grade slope you must execute four steps,
down shift entering the grade, make sure the MWS app is in gear, use brakes
and low gears- what is the missing step - ANSWER Limit the engine rpm-
below redline
