test 1 Flashcards
a _____ switch is not a supervisory switch
Vane type flow
The most appropriate detection for an atrium us a ____
Projected beam smoke detector
The first automatic fire alarm detection device was a
Fuseable link heat detector
a short circuit on a fire alarm initiating device circuit causes a ____ signal.
trouble
the disconnecting means (branch circuit) for the primary power of a fire alarm system must be _____ in color
red
manual fire alarm boxes must be installed within ____ feet of an exit doorway
5’
In a multi-family dwelling a smoke detector in an apartment’s kitchen alarms The apartment and all public areas must be notified.
violation
class a outgoing and return fire alarm circuits run vertically should be separated by at least _____ feet.
1’
The minimum sound pressure level for an audible fire alarm notification appliance at the pillow in the sleeping area is _____ dBA
75
a Proprietary supervising station in under ____ and must be located on ____
single ownership / property owned by the owner of the supervising station
a firestopping material that expands when heated is referred to as _____
Intumescent
What is the maximum distance that visible notification appliances must be located from the end of a corridor?
15’
a circuit that is 1675 feet from the fire alarm control unit to the last device will have a loop resistance of _____ ohms when #14 (3.07 ohm per 1000 ft) uncoated solid copper is used
length x 2
3.07 x per 1000 ft of wire
in a new two-story single family dwelling with a basement and three bedrooms on the second floor will require a minimum of ____ smoke alarms
6
five primary functions of the fire alarm systems.
early detection
occupant notification
fire dept notification
safety controls
building systems management