Sprinkler Systems and Standpipe Operations-Chapter 6 exam questions and answers

What is the maximum pressure at the top-floor outlets when a booster pump is in place? - answer 65 psi How much air pressure is used to hold back the top part of the clapper in a differential dry-pipe valve? - answer 35 psi Which location often has the manual dry standpipe system in place? - answer Parking garage Whick of the following is an indication that there is a sprinkler system in the building? - answer Presence of a Siamese connection What size team should be posted at the controls of the sprinkler system? - answer 2-person Which type of sprinkler system does not have any water suppy attached to it? - answer Nonautomatic What should be done by the attack crew to orient themselves before moving to the smoky fire floor in a high-rise apartment building? - answer Find the same room number on the floor below the fire What is the estimated space that each sprinkler head is able to cover at 20 gpm? - answer 100 square feet How long have sprinkler systems been in use around the world? - answer 100 years If you must force entry into a building due to receipt of a water flow alarm, where is the best place to do it in terms of building security when you leave? - answer Roof How many lengths of 50-foot hoseline would be needed due to current regulations on the location of standpipes in a sprinkled building? - answer 5 Which of the following is a correct statement about a good starting discharge pressure for the standpipe system operations when using a straight nozzle? - answer 100 psi plus 5 psi for every story above grade How far from the riser is any point on the floor supposed to be located from a 100-foot hoseline as per the NFPA standard up until 1993? - answer 30 feet What is the most common type of sprinkler system? - answer Automatic wet How many door chocks should be included in the standpipe kit? - answer 4 What can be used to move the smoke from a sprinkled building that is large with a limited number of openings? - answer Use the HVAC system Which of the following is an inherent problem with the dry standpipe system? - answer Piping may not be able to withstand the working pressure What feature is seen as a water conservation feature as well as a property saving feature in the pre-action system? - answer System is able to shut off and on the system Which of the following situations should you call for assistance upon arrival when there is a sprinkler system in place? - answer Heavy fire showing from the windows Which standard regulates the standpipe systems? - answer NFPA 14 What is the uncommon occurrence at a location with a sprinkler system in place that causes firefighters grief? - answer They go off once the firefighters are on scene Which size pipe wrench should be included in the standpipe kit? - answer 14-inch Which of the following is NOT a step taken when a sprinkler head needs to be replaced after an incident? - answer Remove the head but do not replace it with anything Where does the attack usually begin when using the standpipe? - answer Staircase nearest the fire What size is the main drain valve? - answer 2-inch How is the Siamese connection checked for water flow? - answer Feel for vibrations Which of the following is a good reason to use the solid tip nozzle when using the standpipe system? - answer Allows rust to pass that can build up in the system Which of the following areas is commonly protected by a deluge system? - answer Truck loading rack Which class of standpipe system delivers only 100 gpm and should not be depended upon for large fire knockdown? - answer Class II What is the minimum team size allowed by OSHA standards for work within a standpiped building? - answer 4 Which of the following items is NOT a trade-off that is allowed when a building will be sprinkled? - answer Decrease the distance to the exits What is a good amount of time for sprinkler technician to allow the water to flow before an alarm sounds to help avoid false alarms? - answer 1 minute Which type of reducer needs to be bypassed for fire department use? - answer Pressure-reducing valve Which of the following is a legitimate reason to shut off the automatic sprinkler system? - answer Conserve water for manual firefighting efforts What is the best solution for an emergency exit when entering a large mall type of structure that is heavily involved? - answer Use a search rope How many square feet per floor as a minimum requires a standpipe system be installed? - answer 20,000 What are sprinkler contractors allowed to tap into when installing a sprinkler system in an older high-rise building? - answer Standpipe Which of the following is a reason that fires in sprinklered buildings seem more smoky? - answer Spray pattern pushes the smoke down to the floor When should members consider taking the elevator to the attack location? - answer Fire on the 8th floor Who can reset the dry-pipe system once the alarm has sounded? - answer Sprinkler contractor Which of the following is NOT considered a strategy for fighting fires in a sprinkled building? - answer Locate the stystem shutoffs when you arrive on scene Which class of standpipe has a 2 1/2-inch and 1 1/2-inch outlets? - answer Class III What senses the fire in a deluge system? - answer Fire detection system How often should the pressure-reducing valve be flow tested as a minimum? - answer 3 years What is the best size hoseline to include in the standpipe kit? - answer 2 1/2-inch What would keep you from mistakenly thinking a building has a standpipe system due to the apparent requirements being met? - answer Visit each building and observe the system What will happen when water in the amount of one sprinkler head flows in the dry-pipe system? - answer Clapper will lock What is the primary distinction between different classes of standpipes? - answer Intended users Which type of sprinkler system is found in unheated areas where freezing is a problem? - answer Dry-pipe Which type of standpipe system would be the best choice when there is the risk of freezing in the area? - answer Semiautomatic dry How many feet of raise adds 4.34 psi to the water? - answer 10 feet What is a good rule of thumb in terms of pumpers and Siamese connections? - answer One pumper for each Siamese What is an absolute must in sprinklered buildings but is also hard to accomplish? - answer Ventilation How long can the piping in the New York Telephone Switching Center's sprinkler system able to withstand 1,500 degrees Fahrenheit? - answer 15 minutes