Mobile Water Supply ACTUAL UPDATED
Exam Questions and CORRECT Answers
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: - CORRECT ANSWER - 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: - CORRECT ANSWER - 20 feet of hard suction hose.
identify FOUR pre-service for an MWS apparatus equipped with a fire pump. - CORRECT
ANSWER - •Road test
• Independent pump certification tests
• Purchase acceptance tests
• Hydrostatic tests
Identify THREE items that are checked for leaks during the vacuum test. - CORRECT
ANSWER - •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. - CORRECT ANSWER - •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: - CORRECT ANSWER - 10 inches in 5 minutes
, Tracking engine performance across time uses data collected in the: - CORRECT
ANSWER - Fuel, oil, and mileage record.
Identify THREE critical items that should be included on an MWS apparatus daily inspection
checklist. - CORRECT ANSWER - •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:
- CORRECT ANSWER - Start the engine without a load.
During MWS apparatus service testing, the atmospheric air temperature should be between: -
CORRECT ANSWER - 0F-100F
NFPA 1911 requires an MWS apparatus equipped with a fire pump to be service tested: -
CORRECT ANSWER - 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: - CORRECT ANSWER - 90 psi, 150 psi, and 250 psi.
When maintaining MWS apparatus records, you should: - CORRECT ANSWER - Refer
to your dept. SOPs for specific guidance.
Before you drive an MWS apparatus across a bridge, you should: - CORRECT
ANSWER - 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: - CORRECT ANSWER - Park on the opposite side of the tracks as the incident.
Exam Questions and CORRECT Answers
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: - CORRECT ANSWER - 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: - CORRECT ANSWER - 20 feet of hard suction hose.
identify FOUR pre-service for an MWS apparatus equipped with a fire pump. - CORRECT
ANSWER - •Road test
• Independent pump certification tests
• Purchase acceptance tests
• Hydrostatic tests
Identify THREE items that are checked for leaks during the vacuum test. - CORRECT
ANSWER - •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. - CORRECT ANSWER - •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: - CORRECT ANSWER - 10 inches in 5 minutes
, Tracking engine performance across time uses data collected in the: - CORRECT
ANSWER - Fuel, oil, and mileage record.
Identify THREE critical items that should be included on an MWS apparatus daily inspection
checklist. - CORRECT ANSWER - •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:
- CORRECT ANSWER - Start the engine without a load.
During MWS apparatus service testing, the atmospheric air temperature should be between: -
CORRECT ANSWER - 0F-100F
NFPA 1911 requires an MWS apparatus equipped with a fire pump to be service tested: -
CORRECT ANSWER - 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: - CORRECT ANSWER - 90 psi, 150 psi, and 250 psi.
When maintaining MWS apparatus records, you should: - CORRECT ANSWER - Refer
to your dept. SOPs for specific guidance.
Before you drive an MWS apparatus across a bridge, you should: - CORRECT
ANSWER - 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: - CORRECT ANSWER - Park on the opposite side of the tracks as the incident.
