FA4 Flashcards
Notification appliances used outdoors may result in ___ unless listed for such use.
a. ground faults b. open circuits
c. both a and b d. none of the above
a. ground faults
Mechanical covers or protection for notification appliances may ____.
a. reduce the effectiveness of the appliance
b. require derating of the appliances
c. require reduced spacing of the appliances
d. all of the above
d. all of the above
Installation instructions for notification appliances are found on the _____.
a. product cut sheet b. product itself
c. product package d. none of the above
a. product cut sheet
Can a visible notification appliance (strobe) that is listed for wall mounting be used on a ceiling? explain.
No - the strobe won’t flash right and must be listed for its use
The type of audible appliance used for EVAC systems is a ____
a. bell b. horn
c. siren d. speaker
d. speaker
Which of the following is an audible textural appliance?
a. bell b. horn
c. piezoelectric d. speaker
d. speaker
Both audible and visible appliances can be wired on the same circuit. True or False
True
Sound pressure level (SPL) is always measured using the ____ scale.
a. A-weighted b. B-weighted
c. C-weighted d. D-weighted
a. A-weighted
Visible notification appliances are required when the ambient sound pressure level (SPL) is greater than ___
a. 85 dBa b. 95 dBa
c. 105 dBa d. 115 dBa
c. 105 dBa
The minimum required sound pressure level (SPL) for public mode signaling is the greater of ___ above the average ambient or five dB above the maximum SPL lasting a minute or more, using the A-weighted scale (dBa)
a. 5 dB b. 15 dB
c. 25 dB d. 35 dB
15 dB
The minimum required sound pressure level (SPL) for public mode signaling is ___ above the average ambient or five dB above the maximum SPL lasting a minute or more, using the A-weighted scale (dBa)
a. 10 dBa b. 15 dBa
c. 20 dBa d. 25 dBa
a. 10 dBa
Audible notification appliances must be mounted ___ above finished floor and not less than ___ from the ceiling.
a. 80” / 4” b. 90” / 4”
c. 80” / 6” d. 90” / 6
d. 90” / 6
Combination audible/visible notification appliances must be mounted so the entire lens is ___ above finished floor.
a. 80-86” b. 80-90”
c. 80-86” d. 80-96”
d. 80-96”
Private mode signaling is permitted in _____.
a. corridors b. elevator cars
c. lobbies d. private offices
b. elevator cars
A sleeping room with an ambient sound pressure level of 45 decibels A-weighted (dBa) must have ____ at the pillow.
a. 55 dBa b. 60 dBa
c. 70 dBa d. 75 dBa
d. 75 dBa
A speaker tapped at its highest setting may suffer from ____
distortion
Visible notification appliances used for public mode signaling (for the hearing impaired) must be listed to UL ___.
a. 864 b. 995
c. 1124 d. 1971
d. 1971
According to NFPA 72, the lenses of visible notification appliances for non-sleeping areas must be mounted ___ above the finished floor.
a. 80-86” b. 80-90”
c. 80-96” d. 90-96”
c. 80-96”
According to NFPA 72, a 20’ x 20’ room or an area with a 10’ ceiling is best covered by a ___ visible notification appliance, centered on one wall.
a. 15 cd b. 30 cd
c. 60 cd d. 75 cd
a. 15 cd
Visible appliances in sleeping areas must be within ____ of the pillow.
a. 16’ b. 20’
c. 24’ d. 28’
a. 16’
Sleeping area visible appliances mounted 21” from a ceiling must have a minimum rating of ____.
a. 75 cd b. 95 cd
c. 110 cd d. 177 cd
d. 177 cd
The maximum spacing of visible appliances used in a corridor is ____.
a. 15’ b. 30’
c. 50’ d. 100’
d. 100’
A 20’ x 20’ room with a 30’ high ceiling requires a minimum ____ ceiling-mounted strobe.
a. 30 cd b. 55 cd
c. 75 cd d. 110 cd
b. 55 cd
___ is an example of a textural visible display.
LED Panel, CRT Monitor, Printer
