TFM 12 Texas Fire Alarm Technical [CORRECTED] UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
Does a fire hood system and a kitchen need to be Yes
monitored by the fire alarm system?
What does P.L.F.A stand for? Power Limited Fire Alarm
What does N.P.L.F.A stand for? Non-Power Limited Fire Alarm
What is the difference between P.L.F.A and N.P.L.F.A? an N.P.L.F.A can operate at up to 600v, and the power output isn't limited
a P.L.F.A has the voltage and power limited by a listed power source.
What material must N.P.L.F.A circuit conductors be made ONLY solid stranded copper is permitted.
from?
What does A.W.G stand for? American Wire Gauge
What size conductors are permitted? Size 18 A.W.G and 16 A.W.G are permitted, provided they do not exceed certain
capacities.
What is used to protect transformers or other devices An over-current device not rated over 20 amperes.
supplied from power-supply conductors?
When located within 7 feet of the floor, how shall cables Cables shall be fastened in an approved manner at intervals of not more than 18
be fastened? inches.
Single conductors shall not be smaller than ___ A.W.G? 18
Conductors of 28 A.W.G shall only be permitted in which Spliced with a connector listed as suitable for 26 to 24 A.W.G
circumstance?
How shall P.L.F.A conductors NOT be installed? P.L.F.A conductors shall not be strapped, taped, or attached to the exterior of any
conduit or raceway.
What is Plenum cable? Cable that can be installed in ducts, plenums, or other spaces used for
environmental air.
, What is a Riser cable? Cable to be used in vertical wire runs in shafts between floors. Not to be used
where Plenum cable is required.
It is capable of preventing fire from rising from floor to floor.
What is general purpose cable? Cable for general purpose fire alarm use. Not to be used where plenum cable or
riser cable is required.
It is resistant to the spread of fire.
Why 'type' shall plenum cable be? What substitutions are Power Limited Fire Alarm Plenum (F.P.L.P) C.M.P can be substituted.
allowed?
Why 'type' shall riser cable be? What substitutions are Power Limited Fire Alarm Riser (F.P.L.R) C.M.P, F.P.L.P.
allowed?
C.M.R can be substituted.
What 'type' shall general purpose wire be? What Power Limited Fire Alarm (F.P.L) C.M.P, F.P.L.P, C.M.R, F.P.L.R, C.M.G
substitutions are permitted?
CM can be substituted (all types)
What is the maximum voltage permitted through multi- 150 volts
conductor N.P.L.F.A cables?
What is the voltage rating marked on P.L.F.A cables? Not less than 300 volts
Shall the voltage rating marked on P.L.F.A cables? No, because they may be mistakenly used for electrical applications.
What is 'Rate Compensation Detector'? A device that responds when a temperature rises at an exceeding rate that is
predetermined.
What is a 'Smoke Detector'? a device that detects both visible and invisible combustion particles?
Which detector is best a detecting invisible particles? Ionization
Which sensor is better at detecting thick, visible smoke Photoelectric
particles?
What is a SPOT TYPE sensor? a device in which detecting an element is concentrated at a particular location.
What is a DIGITAL ALARM COMMUNICATOR A system component at the protected premises is connected to the detection
TRANSMITTER ( D.A.C.T)? devices. It has a line seizure and can connect to a D.A.C.R.
What is a DIGITAL ALARM COMMUNICATOR RECEIVER? A system component that accepts and displays signals sent over the public phone
(D.A.C.R)? network from a D.A.C.T (i.e A.D.T monitoring center)
What is an alarm signal? A signal indicating an emergency that requires immediate action.
AND CORRECT ANSWERS
Does a fire hood system and a kitchen need to be Yes
monitored by the fire alarm system?
What does P.L.F.A stand for? Power Limited Fire Alarm
What does N.P.L.F.A stand for? Non-Power Limited Fire Alarm
What is the difference between P.L.F.A and N.P.L.F.A? an N.P.L.F.A can operate at up to 600v, and the power output isn't limited
a P.L.F.A has the voltage and power limited by a listed power source.
What material must N.P.L.F.A circuit conductors be made ONLY solid stranded copper is permitted.
from?
What does A.W.G stand for? American Wire Gauge
What size conductors are permitted? Size 18 A.W.G and 16 A.W.G are permitted, provided they do not exceed certain
capacities.
What is used to protect transformers or other devices An over-current device not rated over 20 amperes.
supplied from power-supply conductors?
When located within 7 feet of the floor, how shall cables Cables shall be fastened in an approved manner at intervals of not more than 18
be fastened? inches.
Single conductors shall not be smaller than ___ A.W.G? 18
Conductors of 28 A.W.G shall only be permitted in which Spliced with a connector listed as suitable for 26 to 24 A.W.G
circumstance?
How shall P.L.F.A conductors NOT be installed? P.L.F.A conductors shall not be strapped, taped, or attached to the exterior of any
conduit or raceway.
What is Plenum cable? Cable that can be installed in ducts, plenums, or other spaces used for
environmental air.
, What is a Riser cable? Cable to be used in vertical wire runs in shafts between floors. Not to be used
where Plenum cable is required.
It is capable of preventing fire from rising from floor to floor.
What is general purpose cable? Cable for general purpose fire alarm use. Not to be used where plenum cable or
riser cable is required.
It is resistant to the spread of fire.
Why 'type' shall plenum cable be? What substitutions are Power Limited Fire Alarm Plenum (F.P.L.P) C.M.P can be substituted.
allowed?
Why 'type' shall riser cable be? What substitutions are Power Limited Fire Alarm Riser (F.P.L.R) C.M.P, F.P.L.P.
allowed?
C.M.R can be substituted.
What 'type' shall general purpose wire be? What Power Limited Fire Alarm (F.P.L) C.M.P, F.P.L.P, C.M.R, F.P.L.R, C.M.G
substitutions are permitted?
CM can be substituted (all types)
What is the maximum voltage permitted through multi- 150 volts
conductor N.P.L.F.A cables?
What is the voltage rating marked on P.L.F.A cables? Not less than 300 volts
Shall the voltage rating marked on P.L.F.A cables? No, because they may be mistakenly used for electrical applications.
What is 'Rate Compensation Detector'? A device that responds when a temperature rises at an exceeding rate that is
predetermined.
What is a 'Smoke Detector'? a device that detects both visible and invisible combustion particles?
Which detector is best a detecting invisible particles? Ionization
Which sensor is better at detecting thick, visible smoke Photoelectric
particles?
What is a SPOT TYPE sensor? a device in which detecting an element is concentrated at a particular location.
What is a DIGITAL ALARM COMMUNICATOR A system component at the protected premises is connected to the detection
TRANSMITTER ( D.A.C.T)? devices. It has a line seizure and can connect to a D.A.C.R.
What is a DIGITAL ALARM COMMUNICATOR RECEIVER? A system component that accepts and displays signals sent over the public phone
(D.A.C.R)? network from a D.A.C.T (i.e A.D.T monitoring center)
What is an alarm signal? A signal indicating an emergency that requires immediate action.
