rises or falls over 3 inches (NFPA 72, Table 14.4.3.2 17 (j) (4) - ANSWERS When testing a water
level supervisory switch serving a pressure tank a signal shall indicate if the water level
_____________from the required level
the visible appliance (Nfpa 72 18.4.8.1) - ANSWERS If combination audible/visible appliances
are installed the location of the installed appliance shall be determined by the requirements of
26 (Nec Annex C tables) - ANSWERS What is the maximum number of 12 gauge THHN wires
that can be installed in 1" EMT
150 Ohms - ANSWERS Two resistors are connected in parallel. R1 = 300 Ohms, R2 = 300 Ohms.
What is their equivalent resistance?
12 - ANSWERS A Room is 200' long and 150' wide and the 8' high ceiling is smooth and flat. A
spot type heat detector has been selected that is listed for a 30' maximum spacing between
detectors. According to NFPA 72 how many detectors will be needed to protect this room?
NFPA 72 29.3.5 - ANSWERS Fire warning equipment to be installed in residential occupancies
shall produce the audible emergency evacuation signal described in
Two detectors or more on each initiating device circuit (NFPA 72 14.4.4.5.1) - ANSWERS
According to NFPA 72 the minimum number of restorable fixed temperature spot type heat
detectors that must be tested during each annual test is