Wet Sprinkler System Components,
Spinkler Heads Questions and Complete
Solutions Graded A+
Branch Lines - Answer: Horizontal piping supplied by the riser nipple from the cross main.
Pipe Hangers - Answer: Listed device for hanging sprinkler piping.
Automatic Sprinklers - Answer: Automatic device activated by heat that discharges water onto a fire.
Inspectors Test Valve - Answer: is located in a remote part of the sprinkler system. Equipped with the
same size orifice as one sprinkler and is used to to stimulate the activation of one sprinkler. The water
from the test valve normally discharges outside the building.
Alarm Check Valve - Answer: type of valve installed in riser of sprinkler system that transmits a water-
flow alarm when the flow in the system lifts the clapper valve
Main Control Valve (OS & Y) - Answer: The valve controlling flow to water-based fire protection systems.
Water Supply Mains - Answer: The piping that connects the sprinkler system to the main water supply
Main Drain Valve - Answer: A non-indicating valve used to drain water from the fire sprinkler system for
maintenance purposes
Fire Department Connection - Answer: An exterior connection that allows the fire department to pump
supplemental water into the sprinkler system, standpipe, or other system furnishing water for fire
extinguishment to supplement existing water supplies.
(Formerly know as Siamese connection.)
Waterflow Alarm - Answer: Triggered when water flows through the system
Spinkler Heads Questions and Complete
Solutions Graded A+
Branch Lines - Answer: Horizontal piping supplied by the riser nipple from the cross main.
Pipe Hangers - Answer: Listed device for hanging sprinkler piping.
Automatic Sprinklers - Answer: Automatic device activated by heat that discharges water onto a fire.
Inspectors Test Valve - Answer: is located in a remote part of the sprinkler system. Equipped with the
same size orifice as one sprinkler and is used to to stimulate the activation of one sprinkler. The water
from the test valve normally discharges outside the building.
Alarm Check Valve - Answer: type of valve installed in riser of sprinkler system that transmits a water-
flow alarm when the flow in the system lifts the clapper valve
Main Control Valve (OS & Y) - Answer: The valve controlling flow to water-based fire protection systems.
Water Supply Mains - Answer: The piping that connects the sprinkler system to the main water supply
Main Drain Valve - Answer: A non-indicating valve used to drain water from the fire sprinkler system for
maintenance purposes
Fire Department Connection - Answer: An exterior connection that allows the fire department to pump
supplemental water into the sprinkler system, standpipe, or other system furnishing water for fire
extinguishment to supplement existing water supplies.
(Formerly know as Siamese connection.)
Waterflow Alarm - Answer: Triggered when water flows through the system
