ACCURATE SOLUTIONS
Projected beam smoke detectors operate on the _____ principle. - ✅✅✅CORRECT -Light
obscuration
A common listing for a commercial fi re alarm control unit is _____. - ✅✅✅CORRECT -UL 864
An ionization smoke detector works by _____. - ✅✅✅CORRECT -Sensing the products of combustion
The types of heat detectors that must be manually reset once they have activated are _____. -
✅✅✅CORRECT -Fusible link and quick metal
The normal field of view for a UV or IR flame detector is less than _____. - ✅✅✅CORRECT -90
degrees of vision
Automatic spot-type detectors may be mounted on sidewalls, but not closer than _____ from the
intersection of the wall and ceiling. - ✅✅✅CORRECT -4 inches
The document that formalizes the commissioning process is _____. - ✅✅✅CORRECT -NFPA 3
To avoid service interruptions, a fi re alarm system may be connected to the line side of the electrical
main service disconnect, but that circuit must be protected by a fuse or circuit breaker no larger than
_____ amps. - ✅✅✅CORRECT -20
When two or more strobe lights are visible from a single location, they must _____. - ✅✅✅CORRECT
-Be synchronized to fl ash together
A key-operated pull box is very likely to be found installed in a(n) _____. - ✅✅✅CORRECT -Prison
, Life safety fi re protection is concerned with protecting and preserving _____. - ✅✅✅CORRECT -
Human life
The circuit integrity of a Class B circuit is monitored via _____. - ✅✅✅CORRECT -The end of line
device
A sprinkler fl ow alarm must be initiated within _____ seconds of the flow of water. - ✅✅✅CORRECT
-90
Standby battery power for a household fi re alarm system must be capable of operating the system for
_____ hours without primary power. - ✅✅✅CORRECT -24
An example of a tactile notification appliance is a _____. - ✅✅✅CORRECT -Strobe
The function of a Fire Alarm Control Unit (FACU) is to _____. - ✅✅✅CORRECT -Coordinate the
actions the system takes in response to messages it gets from initiating devices
When power-limited fi re alarm cable is run in the same junction box as power and lighting circuits, a
_____-inch space must be maintained between the fire alarm cable and the power cable. -
✅✅✅CORRECT -1/4
All of the following are types of fi re alarm systems except _____. - ✅✅✅CORRECT -Interactive
The DACT is connected to a standard telephone line using a device called a(n) ____. - ✅✅✅CORRECT
-RJ-31X
All of the following are considered spot detectors except _____ detectors - ✅✅✅CORRECT -Line
When measuring the alarm sound level in residential sleeping areas, the measurement is made at ____. -
✅✅✅CORRECT -The pillow level