NFPA 25 Definitions
Indicates a recommendation -or- that which is advised but NOT required
What is should?
3.2.5
Dry sprinklers that have been in service for 10 years shall be replaced or tested and the retested at _____ year intervals?
What is 10 years?
5.3.1.1.6
What device shall be tested annually by conducting a forward flow test at a minimum flow rate of the system demand?
Backflow preventers
13.6.2.1
Not required where the annual fire pump testing causes the system flow rate to flow through the backflow preventer device. 13.6.2.1.2
Low pressure switch does not send a signal or alarm?
Critical Deficiency - 13.4.3.2.12
Which type of sprinkler head has no cap or release mechanism?
A) Atlas
B) Fast-response
C) Foam
D) Deluge
D) Deluge
A condition where a fire protection system is out of order and the condition can result in the fire protection system not functioning in the event of a fire.
What is Impairment?
3.3.21
Sprinklers manufactured prior to 1920 shall be _______?
What is replaced.
5.3.1.1.1.2
The piping from the Fire Department Connection to the fire department check valve shall be hydrostatically tested at 150 psi for 2 hours at least how often?
Hydro Test of FDC is required every 5 years
13.7.4
Backflow prevention assemblies did not pass a forward flow test
What is Impairment? 13.6.2.1
Which sprinkler system valve uses a threaded shaft to indicate the position of the valve?
A) Outside stem and yoke
B) Inspector's test
C) Wall post indicator
D) Post indicator
A) Outside stem and yoke
Acceptable to the authority having jurisdiction
What is Approved?
For protected facilities having 300 to 1000 sprinklers, no fewer than _____ sprinklers shall be included in the spare head box
What is 12 sprinklers 5.4.1.5.4
In a system where the sole water source is supplied through a backflow preventer and/or pressure reducing valves, the main drain test of at least one system downstream of the device shall be conducted when?
What is Quarterly.
13.2.5.2
***NOT ANNUAL***
Fire department connection is damaged, not accessible, or clapper not operating properly or msising?
What is impairment. 13.7.1
A fire department pumper can supplement a sprinkler system water supply through the _____.
A) Class I standpipe
B) APV
C) OS&Y
D) FDC
D) FDC
In water based fire protection systems, a means of monitoring system status and indicating abnormal conditions.
What is supervision?
A representative sample of sprinklers for testing consists of ______________________ or _______ of the number of sprinklers per in sprinkler sample, which ever is greater.
What is 4 or 1% whichever is greater 5.3.1.2
When refilling a dry system with air to a refrigerated space maintained below 5 degrees where normal system air pressure shall be permitted to be restored within how long?
60 Minutes
13.4.4.2.2.5
Normal time is 30 minutes for dry systems, above is the exception.
Greater than a 10% reduction in pressure during full flow of the main drain.
What is a critical deficiency. 13.2.5.2
What is the primary advantage of a preaction sprinkler system?
A) Automatic system shutdown after extinguishment
B) No need to replace sprinkler heads after a discharge
C) Water is at the sprinkler head prior to fire detection
D) Prevention of accidental water discharges
D) Prevention of accidental water discharges
A document, the main test of which contains only mandatory provisions using the word "shall" to indicate requirements and which is in a form generally suitable for reference.
What is a Standard?
Representative samples of solder type sprinklers with temperature classification of extra high 325 temp or greater that are exposed to semicontinuous to continuous maximum allowable ambient temperature conditions shall be tested in ______ intervals.
What is 5 years?
5.3.1.1.1.4
If original standpipe system demands cannot be determined, whom shall determine the system demand?
Who is Authority having jurisdiction.
6.3.1.3.1
antifreeze system concentration is inadequate to prevent freezing.
What is Impairment? A5.3.4.2.1 / A3.3.7 table
Which device activates the building fire alarm when water is flowing in a sprinkler system?
A) Check valve
B) Flow switch
C) Activator switch
D) Alarm valve
B) Flow switch