Sprinkler System Terminology Exam Questions and Answers 100% Pass

Sprinkler System Terminology Exam Questions
and Answers 100% Pass


Heads - ANSWER-series of nozzle like devices



Question: Riser - ANSWER-Vertical piping that feed the cross main and contain
system control valves



Question: Cross Mains - ANSWER-serves the branch lines



Question: branch lines - ANSWER-where the sprinklers are directly installed



Question: Three types of release mechanisms for sprinkler heads - ANSWER-
Fusible Links

Glass (frangible bulb)

Chemical Pellets



Question: Types of sprinkler heads - ANSWER-Upright

Pendant

Sidewall

Special Sprinkler Heads

, Question: Main Control Valves - ANSWER-Outside Screw and Yoke (OS&Y)

Post Indicator Valve (PIV)

Post Indicator Valve Assemble ((PIVA)

Wall Post Indicator Valve (WPIV)



Question: What are Control Valves? - ANSWER-Control valves are valves used to
cut off the water supply to the system or zone when it is necessary to perform
maintenance, change sprinkler heads, or interrupt operation. These valves must be
indication valves.



Question: What is an OS&Y Valve - ANSWER-Outside Screw and Yoke valves
have a yoke on the outside with a thread stem or screw. The threaded portion of
the stem is out of the yoke when the valve is open and inside when the valve is
closed.



Question: What is a PIV Valve? - ANSWER-Post Indicator Valves are hollow
posts. The valve stem has a target where the words "open", "closed" or "shut"
appear.



Question: What is a WPIV? - ANSWER-Wall Post Indicator Valves are the same
as Post indicator valves except it is located on the wall, most frequently in
warehouses.