NICET Level 2 Study ITM of
Water Based Systems
Comprehensive Questions
(Frequently Tested) with
Verified Answers
When is it necessary to conduct a Main Drain Test? - Answer: annually or any time the water supply
control valve is closed, this includes any time a fire sprinkler system undergoes maintenance or repair.
What document is needed to determine whether there has been a 10%reduction in full flow pressure in
the water supply , in relation to the results of the current main drain test? - Answer: Original acceptance
test reports or previous test
What is the most common use for a Hydropneumatic Machine/pump? - Answer: For Internal Pipe
Obstruction Flushing/ 5 year flushing
Before servicing a dry system air compressor, what device can be used to safely determine that power is
not being supplied to the compressor? - Answer: Voltage Meter
According to NFPA 25, What is the typical size of an impairment tag? - Answer: 4in x 6in
The Hydraulic design information sign for a standpipe system, when provided, shall be at what interval
in order to verify that it is attached and is legible? - Answer: Annualy
Obstruction investigations should be recommended when what situations occur? - Answer: After
extended period of being shut down and returned to service, drains or inspectors test plugged by
foreign material, and/or obstructive material observed during drain test
When preforming a churn test (no flow condition) on a Diesel Fire Pump, what is the minimum run time?
- Answer: 30 Minutes
, How frequently shall a Vane Type water flow switch be tested? - Answer: Semi-Annually
To prevent jammin, what shall be done to post indicator and OS&Y Valves? - Answer: Backed 1/4 turn
from the fully open position
When Annually testing a fire hydrant, what is the minimum flow time according to NFPA 25? - Answer: 1
minute
Which agency should be contacted in order to determine whether a tamper/supervisory signal was
received during the semi-annual test of a wet system control valve? - Answer: Central Monitoring
Station
How often does the interior of a water storage tank, which was protected from corrosion, require
inspection? - Answer: 5 Years
What is the reason for opening Post Indicator Valves until tension is felt? - Answer: to determine that
the rod has not become detached from the valve
According to NFPA 25, when are dry valves allowed to be tripped with the control valve partially
opened? - Answer: In accordance with the code when Full Flow testing is not required
According to NFPA 25, to whom should records be made available upon request? - Answer: Authority
Having Jurisdiction (AHJ)
A pre-action deluge valve has an exterior reset. How often do this valve and its detection devices need
to be inspected? - Answer: Monthly
while preforming a full trip test on a dry system, an abnormally long water delivery time to the
inspectors test is recorded. The original system acceptance test report is reviewed. It is discovered that
there is more than a 50% increase in time from that of the original test. What actions should be taken? -
Answer: Recommend to the owner that an obstruction investigation and/or flushing of the system be
preformed in order to clear out any debris or other obstructions
Water Based Systems
Comprehensive Questions
(Frequently Tested) with
Verified Answers
When is it necessary to conduct a Main Drain Test? - Answer: annually or any time the water supply
control valve is closed, this includes any time a fire sprinkler system undergoes maintenance or repair.
What document is needed to determine whether there has been a 10%reduction in full flow pressure in
the water supply , in relation to the results of the current main drain test? - Answer: Original acceptance
test reports or previous test
What is the most common use for a Hydropneumatic Machine/pump? - Answer: For Internal Pipe
Obstruction Flushing/ 5 year flushing
Before servicing a dry system air compressor, what device can be used to safely determine that power is
not being supplied to the compressor? - Answer: Voltage Meter
According to NFPA 25, What is the typical size of an impairment tag? - Answer: 4in x 6in
The Hydraulic design information sign for a standpipe system, when provided, shall be at what interval
in order to verify that it is attached and is legible? - Answer: Annualy
Obstruction investigations should be recommended when what situations occur? - Answer: After
extended period of being shut down and returned to service, drains or inspectors test plugged by
foreign material, and/or obstructive material observed during drain test
When preforming a churn test (no flow condition) on a Diesel Fire Pump, what is the minimum run time?
- Answer: 30 Minutes
, How frequently shall a Vane Type water flow switch be tested? - Answer: Semi-Annually
To prevent jammin, what shall be done to post indicator and OS&Y Valves? - Answer: Backed 1/4 turn
from the fully open position
When Annually testing a fire hydrant, what is the minimum flow time according to NFPA 25? - Answer: 1
minute
Which agency should be contacted in order to determine whether a tamper/supervisory signal was
received during the semi-annual test of a wet system control valve? - Answer: Central Monitoring
Station
How often does the interior of a water storage tank, which was protected from corrosion, require
inspection? - Answer: 5 Years
What is the reason for opening Post Indicator Valves until tension is felt? - Answer: to determine that
the rod has not become detached from the valve
According to NFPA 25, when are dry valves allowed to be tripped with the control valve partially
opened? - Answer: In accordance with the code when Full Flow testing is not required
According to NFPA 25, to whom should records be made available upon request? - Answer: Authority
Having Jurisdiction (AHJ)
A pre-action deluge valve has an exterior reset. How often do this valve and its detection devices need
to be inspected? - Answer: Monthly
while preforming a full trip test on a dry system, an abnormally long water delivery time to the
inspectors test is recorded. The original system acceptance test report is reviewed. It is discovered that
there is more than a 50% increase in time from that of the original test. What actions should be taken? -
Answer: Recommend to the owner that an obstruction investigation and/or flushing of the system be
preformed in order to clear out any debris or other obstructions
