Sprinkler Chart Questions and Answers
(S12) Rated A+ Verified 2025
4% failure rate of sprinklers are due to - ANSWER-Defective piping, closed supply
valve, frozen water lines, improper maintenance and blocked supply lines
A connection on the exterior of a building, through which the fire department can pump
supplemental water into the sprinkler system, standpipe, or other system. (Formally
known as a Siamese connection) - ANSWER-Fire Department Connection
A device capable of removing all solids of sufficient size from water - ANSWER-Strainer
A device designed to reduce, regulating, controlling or restricting water pressure -
ANSWER-Pressure Regulating Devices
A device that relieves excess water or air pressure from fire protection piping systems -
ANSWER-Pressure Relief Valve
A hose consisting of only a woven jacket that is usually of linen yarns and is of such
quality that the yarn swells when wet, tending to seal the hose - ANSWER-Unlined
Hose
A hose with a jacket covered and lined with synthetic rubber or plastic - ANSWER-
Covered Hose
A method of sizing automatical sprinkler systems indicating the design density, required
Gallons per min, and pressure for system to function properly - ANSWER-Hydraulic
Calculated Systems
A non-collapsable hose used under positive pressure having an elastomeric or
thermoplastic tube, a braided or spiral reinforcement, and an outer protective cover -
ANSWER-Booster Hose
A pilot operated pressure reducing valve that may be used with a fire or booster pump
designed for the purpose of preventing the incoming water supply from dropping below
a set pressure - ANSWER-Pressure Control Valve
A raised series of beams (usually steel) bearing on posts or walls to support mechanical
equipment (usually on rooftops) - ANSWER-Dunnage
A sprinkler having special deflectors that are designed to discharge most of the water
away from the nearby wall - ANSWER-Sidewall Sprinkler
, A sprinkler head that directs 40% to 60% of water initially downwards with the deflector
in either upright or pendant position - ANSWER-Old style/Conventional Sprinklers
A sprinkler head with a red frame has a temperature classification of? - ANSWER-Extra
High (325 - 375°F)
A sprinkler head with a white frame has a temperature rating of? - ANSWER-175 -
225°F
A sprinkler head with an orifice size from 3/4" - less than 1" - ANSWER-Large Orifice
Sprinkler
A standpipe system having piping containing water at all times - ANSWER-Wet
standpipe system
A standpipe system that is vertically subdivided as required by code into multiple zones
in order to limit the maximum operating pressure. Each zone will have it's own individual
automatic water supply. - ANSWER-Standpipe, Multi-Zone
A surge in pressure when a high velocity flow of water is abruptly shut off. Can be 7 or
more times the static Pressure. - ANSWER-Water Hammer
A system where fire protection piping services both 2 1/2in outlets for fire department
use and outlets for automatic sprinklers - ANSWER-Combination Standpipe & Sprinkler
System
A tank using air pressure to supply water to fire protection systems. (1/3 air 2/3 water) -
ANSWER-Pressure Tank
A type of control valve for a sprinkler system in which the position of the center screw
indicates whether the valve is open or closed. - ANSWER-OS&Y (Outside Stem and
yolk) Valve
A valve connection on a water supply system having one or more outlets used to supply
hose and fire department connections with water - ANSWER-Fire Hydrant
A valve designed for the purpose of reducing the downstream water pressure under
both flowing (residual) and non flowing (static) confitions - ANSWER-Pressure-
Reducing Valve
About ____ of fires are extinguished or controlled when sprinklers are installed -
ANSWER-96%
After a fire has been extinguished no control valves should be closed except -
ANSWER-On the order of the fire officer in charge
(S12) Rated A+ Verified 2025
4% failure rate of sprinklers are due to - ANSWER-Defective piping, closed supply
valve, frozen water lines, improper maintenance and blocked supply lines
A connection on the exterior of a building, through which the fire department can pump
supplemental water into the sprinkler system, standpipe, or other system. (Formally
known as a Siamese connection) - ANSWER-Fire Department Connection
A device capable of removing all solids of sufficient size from water - ANSWER-Strainer
A device designed to reduce, regulating, controlling or restricting water pressure -
ANSWER-Pressure Regulating Devices
A device that relieves excess water or air pressure from fire protection piping systems -
ANSWER-Pressure Relief Valve
A hose consisting of only a woven jacket that is usually of linen yarns and is of such
quality that the yarn swells when wet, tending to seal the hose - ANSWER-Unlined
Hose
A hose with a jacket covered and lined with synthetic rubber or plastic - ANSWER-
Covered Hose
A method of sizing automatical sprinkler systems indicating the design density, required
Gallons per min, and pressure for system to function properly - ANSWER-Hydraulic
Calculated Systems
A non-collapsable hose used under positive pressure having an elastomeric or
thermoplastic tube, a braided or spiral reinforcement, and an outer protective cover -
ANSWER-Booster Hose
A pilot operated pressure reducing valve that may be used with a fire or booster pump
designed for the purpose of preventing the incoming water supply from dropping below
a set pressure - ANSWER-Pressure Control Valve
A raised series of beams (usually steel) bearing on posts or walls to support mechanical
equipment (usually on rooftops) - ANSWER-Dunnage
A sprinkler having special deflectors that are designed to discharge most of the water
away from the nearby wall - ANSWER-Sidewall Sprinkler
, A sprinkler head that directs 40% to 60% of water initially downwards with the deflector
in either upright or pendant position - ANSWER-Old style/Conventional Sprinklers
A sprinkler head with a red frame has a temperature classification of? - ANSWER-Extra
High (325 - 375°F)
A sprinkler head with a white frame has a temperature rating of? - ANSWER-175 -
225°F
A sprinkler head with an orifice size from 3/4" - less than 1" - ANSWER-Large Orifice
Sprinkler
A standpipe system having piping containing water at all times - ANSWER-Wet
standpipe system
A standpipe system that is vertically subdivided as required by code into multiple zones
in order to limit the maximum operating pressure. Each zone will have it's own individual
automatic water supply. - ANSWER-Standpipe, Multi-Zone
A surge in pressure when a high velocity flow of water is abruptly shut off. Can be 7 or
more times the static Pressure. - ANSWER-Water Hammer
A system where fire protection piping services both 2 1/2in outlets for fire department
use and outlets for automatic sprinklers - ANSWER-Combination Standpipe & Sprinkler
System
A tank using air pressure to supply water to fire protection systems. (1/3 air 2/3 water) -
ANSWER-Pressure Tank
A type of control valve for a sprinkler system in which the position of the center screw
indicates whether the valve is open or closed. - ANSWER-OS&Y (Outside Stem and
yolk) Valve
A valve connection on a water supply system having one or more outlets used to supply
hose and fire department connections with water - ANSWER-Fire Hydrant
A valve designed for the purpose of reducing the downstream water pressure under
both flowing (residual) and non flowing (static) confitions - ANSWER-Pressure-
Reducing Valve
About ____ of fires are extinguished or controlled when sprinklers are installed -
ANSWER-96%
After a fire has been extinguished no control valves should be closed except -
ANSWER-On the order of the fire officer in charge
