S13 STANDPIPE TEST STUDY GUIDE 2026
QUESTIONS WITH COMPLETE SOLUTIONS
◉ Testing. Answer: A procedure used to determine the status of a
system as intended by conducting periodic physical checks on water
based fire protection systems such as water flow tests, fire pump
tests, alarm tests, and trip tests of dry pipe or deluge valves. These
tests follow the requirements for acceptance testing at intervals
specified in the appropriate chapter of NFPA #25, 2002 edition.
◉ Unlined Hose. Answer: A hose consisting of only a woven jacket
that is usually of linen yarns and is of such quality that yarn swells
when wet, tending to seal the hose.
◉ Water Hammer. Answer: The surge in pressure when a high-
velocity flow of water is abruptly shut off. The pressure exerted by
the flowing water against a closed system can be seven or more
times that of the static pressure
◉ Water Spray. Answer: Water in a form having a predetermined
pattern, particle size, velocity, and density discharge from specially
designed nozzles or devices.
,◉ Water Supply. Answer: A source of water that provides the flows
[gal/min (L/min)] and pressures [psi (bar)] required by the water-
based fire protection system.
◉ Water Tank. Answer: A tank supplying water for water-based fire
protection systems.
◉ Wet Standpipe System. Answer: A standpipe system having piping
containing water at all times.
◉ Standpipe class I. Answer: This system is designed to be used by
professional fire fighters. For example, the system is used by Fire
Department and Fire Brigade personnel. The fire hoses in these
systems are 2 1/2 inches in diameter. The large hose diameter
makes it difficult to control the stream of water from the hose.
◉ Standpipe class II. Answer: This system is designed to be used by
the occupants of a building. The hose and nozzle are connected to
the standpipe. They are ready to be used by occupants in case of a
fire. The hose is 1 1/2 inches in diameter. The hose stream is easier
to control than the Class I hose.
◉ Standpipe class III. Answer: This system may be used by either
professional fire fighters or by occupants of the building. The hosing
may be adjusted to either 1 1/2 or 2 1/2 inches in diameter. This is
done by attaching special reducing valves to the hose line.
, ◉ Wet Standpipe System. Answer: This system always has water in
the piping. The water in the system is always under pressure. In
some cases a fire pump may be used to increase the water pressure.
The wet standpipe system is the most commonly used standpipe
system. It is used in heated buildings where there is no danger of the
water in the piping freezing. Any part of the standpipe system that is
exposed to freezing temperatures should be insulated. It is very
important that the water in the piping does not freeze. Frozen water
may prevent the standpipe system from working.
◉ Dry Standpipe with an Automatic Dry Pipe Valve (Manual
Standpipe). Answer: ...
◉ Dry Standpipe with a Manual Control Valve. Answer: This system
is supplied by a public water main. Under normal conditions this
system has no water in the piping. The water is not allowed into the
standpipe until a control valve is manually operated. The control
valve remains closed until a fire occurs. The air in the piping is not
under pressure. A pre-action valve prevents the water from entering
the system. The valve is automatically opened when a fire detection
system discovers that there is a fire. This system is usually used in a
building that is not heated.
◉ Dry Standpipe with No Permanent Water Supply (Manual
Standpipe). Answer: ...
QUESTIONS WITH COMPLETE SOLUTIONS
◉ Testing. Answer: A procedure used to determine the status of a
system as intended by conducting periodic physical checks on water
based fire protection systems such as water flow tests, fire pump
tests, alarm tests, and trip tests of dry pipe or deluge valves. These
tests follow the requirements for acceptance testing at intervals
specified in the appropriate chapter of NFPA #25, 2002 edition.
◉ Unlined Hose. Answer: A hose consisting of only a woven jacket
that is usually of linen yarns and is of such quality that yarn swells
when wet, tending to seal the hose.
◉ Water Hammer. Answer: The surge in pressure when a high-
velocity flow of water is abruptly shut off. The pressure exerted by
the flowing water against a closed system can be seven or more
times that of the static pressure
◉ Water Spray. Answer: Water in a form having a predetermined
pattern, particle size, velocity, and density discharge from specially
designed nozzles or devices.
,◉ Water Supply. Answer: A source of water that provides the flows
[gal/min (L/min)] and pressures [psi (bar)] required by the water-
based fire protection system.
◉ Water Tank. Answer: A tank supplying water for water-based fire
protection systems.
◉ Wet Standpipe System. Answer: A standpipe system having piping
containing water at all times.
◉ Standpipe class I. Answer: This system is designed to be used by
professional fire fighters. For example, the system is used by Fire
Department and Fire Brigade personnel. The fire hoses in these
systems are 2 1/2 inches in diameter. The large hose diameter
makes it difficult to control the stream of water from the hose.
◉ Standpipe class II. Answer: This system is designed to be used by
the occupants of a building. The hose and nozzle are connected to
the standpipe. They are ready to be used by occupants in case of a
fire. The hose is 1 1/2 inches in diameter. The hose stream is easier
to control than the Class I hose.
◉ Standpipe class III. Answer: This system may be used by either
professional fire fighters or by occupants of the building. The hosing
may be adjusted to either 1 1/2 or 2 1/2 inches in diameter. This is
done by attaching special reducing valves to the hose line.
, ◉ Wet Standpipe System. Answer: This system always has water in
the piping. The water in the system is always under pressure. In
some cases a fire pump may be used to increase the water pressure.
The wet standpipe system is the most commonly used standpipe
system. It is used in heated buildings where there is no danger of the
water in the piping freezing. Any part of the standpipe system that is
exposed to freezing temperatures should be insulated. It is very
important that the water in the piping does not freeze. Frozen water
may prevent the standpipe system from working.
◉ Dry Standpipe with an Automatic Dry Pipe Valve (Manual
Standpipe). Answer: ...
◉ Dry Standpipe with a Manual Control Valve. Answer: This system
is supplied by a public water main. Under normal conditions this
system has no water in the piping. The water is not allowed into the
standpipe until a control valve is manually operated. The control
valve remains closed until a fire occurs. The air in the piping is not
under pressure. A pre-action valve prevents the water from entering
the system. The valve is automatically opened when a fire detection
system discovers that there is a fire. This system is usually used in a
building that is not heated.
◉ Dry Standpipe with No Permanent Water Supply (Manual
Standpipe). Answer: ...
