Fundamentals of Automatic Sprinkler Systems Review Questions with complete Solutions 100% Pass
3 views 0 purchase
Course
Sprinkler Systems
Institution
Sprinkler Systems
Fundamentals of Automatic Sprinkler Systems Review Questions with complete Solutions 100% Pass
NFPA records indicate that automatic sprinkler systems are in excess of - Answers 96% effective in suppressing or containing fires
When a sprinkler systems fails to control a fire, there are generally t...
Fundamentals of Automatic Sprinkler Systems Review Questions with complete Solutions 100% Pass
NFPA records indicate that automatic sprinkler systems are in excess of - Answers 96% effective in
suppressing or containing fires
When a sprinkler systems fails to control a fire, there are generally two reasons: - Answers (1) The water
supply for the sprinkler was inadequate; (2) Control valve on supply line was inadequate
How does a sprinkler work to put out a fire? - Answers Cools burning materials, wets adjacent materials,
removes heat from room, displaces oxygen via steam
What does approved mean - Answers accepted by AHJ
What does AHJ mean? - Answers enforcing the requirements of a code or standard, or for approving
equipment, materials, an installation, or a procedure
Listed - Answers included in a list published by an organization acceptable to the AHJ
Shall - Answers mandatory
Should - Answers advised, but not required
What do sprinkler systems contain? - Answers One or more sources of water under pressure, water flow
controlling devices (valves), distribution piping and auxillary equipment (alarms, supervisory devices).
Outdoor hydrants, indoor hose standpipes, and hand hose connections are also frequently a part of the
system
When talking about sprinklers, we are referring to what - Answers The sprinklers controlled by a water
supply valve. Under this definition, large buildings require several sprinkler systems
What must be considered in sprinkler system effectiveness? - Answers (1) The sprinkler systems; (2)
Features of building construction; (3) Hazards of occupancy; (4) Available water supplies
What is an automatic sprinkler system? - Answers Integrated system of underground and overhead
piping designed in accordance with fire protection engineering standards.
What are the three main purposes of a sprinkler system? - Answers (1) Activate (fusible link); (2) Alert;
(3) Suppress fire
Water supply must have - Answers (1) Flow; (2) Pressure; (3) Duration
Key valve - Answers When a municipal water supply is used, a shutoff valve known as the key valve in
installed
Riser shut-off valve - Answers A valve for turning off the water supply to allow for maintanance,
renovations, or when sprinkler is broken
, What are the two basic types of shut-off valves? - Answers Outside Screw and Yoke valve or a butterfly
valve
What are two types of alarm devices? - Answers Alarm check valve for WET sprinkler systems and the
Dry Pipe Valve for dry sprinkler systems.
What are alarm valves being replaced by? - Answers A listed flow switch combined with a water check
valve
Where are audio alarms located and how are they activated? - Answers Inside bells, and activated by a
pressure switch
What is the FDPC (Fire Department Pumper Connection) used for? - Answers As the fire increases in
intensity, the fire department can simultaneously increase the amount of water feeding the sprinklers
What is overhead piping? - Answers A specially engineered system installed throughout the building to
feed the sprinklers with water
What are sprinklers? - Answers Detects fire and distributes water evenly
Automatic sprinklers activate at a predetermined what? - Answers Temperature
What detection mechanisms do sprinklers use? - Answers A fusible element or a frangible glass bulb
How does the detection system trigger the sprinkler? - Answers When the fusible element or frangible
glass bulb breaks, the orifice plug is removed, allowing water
How does the deflector operate? - Answers The water stream impacts the deflector, which produces a
specific spray pattern discharge, which must not be obstructed
What are the three most common sprinkler designs? - Answers (1) Upright; (2) Pendant; (3) Sidewall
sprinkler
Describe the standard spray upright? - Answers Installed upright, water discharged against deflector
Describe the standard spray pendant? - Answers Designed to be installed with the deflector in the
pendant position. As such, the water stream is directed downward against the deflector.
Descibe sidewall sprinklers? - Answers Discharge most of the water away from a nearby wall with only a
small portion of the discharge directed at the wall behind the sprinkler.
Which sprinkler type should only be installed at light hazard occupancies, as the discharge
characteristics are inferior to the other too - Answers Sidewall sprinkler
What radius SSU and SSP protect? - Answers 7.5'
How far can Sidewall sprinklers protect? - Answers 15'
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TutorJosh. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
