5/2 quiz 3 Flashcards
The ___ is selected by the AHJ
designated elevator recall level
Pit sprinklers located less than ___ feet above the pit floor are exempt from causing shunt trip
two
duct detectors are usually required on systems with a capacity over ___.
2,000 cfm
Which of the following is not required when testing releasing systems interfaces?
discharge of the suppression agent
Failure of the power supply or a wiring fault is indicated by a ___ signal.
trouble
Signaling line circuits monitor for integrity by
Polling or interrogating field devices
A blocking diode is used to prevent monitoring current from passing through ___.
notification appliances
Which of the following is an audible textual appliance?
Speaker
Opens and grounds result in ____ signal.
trouble
Secondary power supplies must supply power to an emergency voice/alarm communication fire alarm system for a minimum of ____.
24 hours of standby followed by 15 minutes of alarm
The most common type of audible appliance used in high-rise and health care occupancies is a(n) ____.
speaker
A smoke alarm with an integral strobe must be mounted at ___ below the ceiling where intended to be used for sleeping rooms.
4-12 inches
Strobes must be synchronized when ____
there are more than two appliances in a field of view
May a combination burglary/fire alarm system listed for household use be used in a small mercantile occupancy?
only with permission of the AHJ
The part of a drawing that shows relationship of devices to each floor is called the ____.
riser diagram
Non-power limited fire alarm circuits extending from one floor to another may use ___.
NPLFP and NPLFR
Smoke detectors installed in elevator lobbies for elevator phase 1 recall must be installed within ____ feet of the centerline of each elevator car controlled by the detector.
21
According to the national codes, what devices must cause Phase 1 recall?
elevator lobby, machine room, and hoist way smoke detectors
Which of the following types of systems re most likely to be used in a high rise building using partial evacuation?
emergency voice alarm communciation
Door unlocking is an example of ___
A fire safety function
Which of the following is a supervising signal initiating device?
water tamper switch
The listed spacing of smoke detectors is ___ feet.
(None)
An emergency voice/alarm communication alert tone must sound at least ___ times.
3
Smoke and fire barriers are usually located on the ____ drawings.
life safety plan
Survivability requirements apply to ____.
emergency voice/alarm communication systems.
