Mobile water supply questions reviewed
& correctly answered.
You are stationed in Alaska in December. You've just come back from a company inspection to find that
your stall door will not operate and cannot be fixed until the following day. To prevent damage from
freezing you should: ANS - Drain the piping, pump, and booster lines to prevent damage.
When testing the priming device on an MWS apparatus with a fire pump with a capacity less than 1,500
gpm, the priming device should be able to create the necessary vacuum in 30 seconds to lift water 10
feet through: ANS - 20 feet of hard suction hose.
identify FOUR pre-service for an MWS apparatus equipped with a fire pump. ANS - •Road test
• Independent pump certification tests
• Purchase acceptance tests
• Hydrostatic tests
Identify THREE items that are checked for leaks during the vacuum test. ANS - •Priming device
• Hard suction hose
• Pump
Identify THREE pieces of equipment needed to conduct service testing on an MWS apparatus equipped
with a fire pump. ANS - •Tachometer
•Smoothbore tips
•External test gauges
When performing a vacuum service test, once the engine is turned off, the column of mercury should
fall no more than: ANS - 10 inches in 5 minutes
Tracking engine performance across time uses data collected in the: ANS - Fuel, oil, and mileage record.
, Identify THREE critical items that should be included on an MWS apparatus daily inspection checklist.
ANS - •Apparatus unit identification number
•Inspected by column
•Remarks column
An MWS apparatus should be started with all electrical switches in the OFF position in order to: ANS -
Start the engine without a load.
During MWS apparatus service testing, the atmospheric air temperature should be between: ANS - 0F-
100F
NFPA 1911 requires an MWS apparatus equipped with a fire pump to be service tested: ANS - At least
once a year or when it has undergone extensive pump repair.
The pressure control service test measures pressure control devices at three different points. They are:
ANS - 90 psi, 150 psi, and 250 psi.
When maintaining MWS apparatus records, you should: ANS - Refer to your dept. SOPs for specific
guidance.
Before you drive an MWS apparatus across a bridge, you should: ANS - Compare the weight of the
MWS apparatus to the bridge's capacity.
All of the following statements about parking an MWS apparatus near a railroad track are true EXCEPT:
ANS - Park on the opposite side of the tracks as the incident.
Starting an MWS apparatus in the correct order: ANS - 1. Disconnect all aux. electrical & air sources.
2. Turn on apparatus battery
3.Start the engine
4.Observe the gauges
5.Check seat, mirrors, and steering wheel
& correctly answered.
You are stationed in Alaska in December. You've just come back from a company inspection to find that
your stall door will not operate and cannot be fixed until the following day. To prevent damage from
freezing you should: ANS - Drain the piping, pump, and booster lines to prevent damage.
When testing the priming device on an MWS apparatus with a fire pump with a capacity less than 1,500
gpm, the priming device should be able to create the necessary vacuum in 30 seconds to lift water 10
feet through: ANS - 20 feet of hard suction hose.
identify FOUR pre-service for an MWS apparatus equipped with a fire pump. ANS - •Road test
• Independent pump certification tests
• Purchase acceptance tests
• Hydrostatic tests
Identify THREE items that are checked for leaks during the vacuum test. ANS - •Priming device
• Hard suction hose
• Pump
Identify THREE pieces of equipment needed to conduct service testing on an MWS apparatus equipped
with a fire pump. ANS - •Tachometer
•Smoothbore tips
•External test gauges
When performing a vacuum service test, once the engine is turned off, the column of mercury should
fall no more than: ANS - 10 inches in 5 minutes
Tracking engine performance across time uses data collected in the: ANS - Fuel, oil, and mileage record.
, Identify THREE critical items that should be included on an MWS apparatus daily inspection checklist.
ANS - •Apparatus unit identification number
•Inspected by column
•Remarks column
An MWS apparatus should be started with all electrical switches in the OFF position in order to: ANS -
Start the engine without a load.
During MWS apparatus service testing, the atmospheric air temperature should be between: ANS - 0F-
100F
NFPA 1911 requires an MWS apparatus equipped with a fire pump to be service tested: ANS - At least
once a year or when it has undergone extensive pump repair.
The pressure control service test measures pressure control devices at three different points. They are:
ANS - 90 psi, 150 psi, and 250 psi.
When maintaining MWS apparatus records, you should: ANS - Refer to your dept. SOPs for specific
guidance.
Before you drive an MWS apparatus across a bridge, you should: ANS - Compare the weight of the
MWS apparatus to the bridge's capacity.
All of the following statements about parking an MWS apparatus near a railroad track are true EXCEPT:
ANS - Park on the opposite side of the tracks as the incident.
Starting an MWS apparatus in the correct order: ANS - 1. Disconnect all aux. electrical & air sources.
2. Turn on apparatus battery
3.Start the engine
4.Observe the gauges
5.Check seat, mirrors, and steering wheel
