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If a combination audible/visual The visible appliance
appliances are installed, the
location of the installed
appliance shall be determined
by the
requirements of?
What is the maximum number 26
of 12 gauge THHN wires that
can be installed in a 1 inch
EMT?
Two resistors are connected in 150 Ohms
parallel. R1 = 300 ohms, R2 =
300 ohms. What is their
equivalent resistance?
A room is 200 feet long and 150 12
feet wide, and the 8 foot high
ceiling is smooth and flat. A
spot-type heat detector has
been
selected that is listed for a 50 foot
maximum spacing between
detectors.
According to NFPA 72, how
many
detectors will be needed to
protect this room
Fire-warning equipment to be ANSI S3.41
installed in residential
occupancies shall produce the
audible emergency
evacuation signal
described in ?
According to NFPA 72, the Two detectors are more on each initiating device circuit
minimum
number of restorable fixed-
temperature spot-type heat
detectors that must be tested
during each annual test is ?
, According to NFPA 72, how 6
many spot- type heat detectors
are required for a
space that is 80-foot long and 55-
foot wide with a smooth 10 foot
ceiling? The heat
detector is listed for a maximum
space between detectors of 30
feet?
What is the color code White
requirement for a spot-type
heat detector rated at 200
degrees Fahrenheit?
Unless otherwise 10 years from the date of manufacture
recommended by the
manufacturer's published
instructions,
single and multiple-station
smoke alarms installed in one
and two-family dwellings
shall be replaced every
__________________ ?
When testing a water level Rises or falls 3 inches
supervisory switch serving a
pressure tank, a signal
shell indicate if the water level
_____________________ from
the required level?
Are Fire alarm cables are False (NEC 760.143)
permitted to be strapped to
conduit to support the cable?
Where non power-limited 7 feet
wiring is installed exposed, it
must be mechanically
protected within of the
finished floor?