Fire Alarm TFM12 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS
What does PLFA stand for? Power Limited Fire Alarm
What does NPLFA stand for? Non Power Limited Fire Alarm
What material must NPLFA circuit conductors be made Only solid or stranded copper is permitted
from
What is a single station detector? Battery powered smoke detectors that do not communicate off premises.
What is a multiple station detector? Mains powered smoke detectors with battery backup that are linked together, so
that if one unit initiates, alarms in all detectors will sound. They do not
communicate off premises.
How frequently must household single and multiple In accordance with the manufactures recommendations, at least monthly.
single station detectors be inspected and tested?
How frequently must household single and multiple At least 3 years, by a qualified service technician.
station detectors be inspected and tested?
How frequently must heat detectors be tested? Two or more annually, different detectors must be tested each year, and within 5
years all detectors must have been tested.
What does "restorable" mean? The detector can be "restored" or "reused" after it has initiated.
What does "non-restorable" mean? The detector cannot be 're-used" after it has initiated an alarm. (Think of a heat
detector, which self destructs upon initiating.)
What size conductors are permitted? Size 18 AWG and 16 AWG are permitted, provided they do not exceed certain
rated ampacities
What is used to protect transformers or other devices An overcurrent device not rated over 20 Amperes
supplied from power-supply conductors?
When located within 7ft of the floor, how shall cables be Cables shall be fastened in an approved manner at intervals of not more than 18
fastened? inches.
Single conductors shall not be smaller that ___ AWG? 18
, Conductors of 26AWG shall only be permitted in which Where spliced with a connector listed as suitable for 26 to 24 AWG.
circumstances?
How should PLFA conductors NOT be installed? PLFA conductors shall not be strapped, taped or attached to the exterior of any
conduit or raceway.
What is Plenum cable? What are its characteristics? Cable that can be installed in ducts, plenums or other spaces used for
environment air. It has adequate fire resistance and low smoke-producing
characteristics.
What is riser cable? What are its characteristics? Cable to be used in vertical wire runs in shafts or between floors. Not to be used
where Plenum cable is required. It is capable of preventing fire from rising form
floor-to-floor.
What is Genral Purpose Cable? What are its Cable for general purpose fire alarm use. Not to be used where Plenum or Riser
characteristics? cable is required. It is resistant to the spread of fire.
What type shall plenum cable be? What substitutions are Power Limited Fire Alarm Plenum (FPLP) CMP can be substituted.
allowed?
What type shall riser wire be? What substitutions are Power Limited Fire Alarm Riser (FPLR) CMP,FPLP,CMR can be substituted.
permitted?
What type shall general purpose wire be? What Power Limited Fire Alarm (FPL) CMP,FPLP,CMR,FPLR,CMG, and CM can be
substitutions are permitted? substituted. (All types)
What is the maximum voltage permitted through multi- 150 volts
conductor NPLFA cables?
What is the voltage rating of PLFA cables? Not less than 300 volts
Shall the voltage be marked on PLFA cables? No, because they may be misinterpreted and used for electrical applications.
What is a "Rate Compensation Detector"? A device that responds when the temperature reaches a pre-determined level.
What is a "Rate of Rise Detector" A device that responds when the temperature rises at a rate exceeding a pre-
determined value.
What is a Smoke Detector? A device that detects both visible and invisible combustion particles.
Which sensor is best at detecting invisible smoke Ionization
particles?
Which sensor is best at detecting thick, visible smoke Photoelectric
particles?
What does PLFA stand for? Power Limited Fire Alarm
What does NPLFA stand for? Non Power Limited Fire Alarm
What material must NPLFA circuit conductors be made Only solid or stranded copper is permitted
from
What is a single station detector? Battery powered smoke detectors that do not communicate off premises.
What is a multiple station detector? Mains powered smoke detectors with battery backup that are linked together, so
that if one unit initiates, alarms in all detectors will sound. They do not
communicate off premises.
How frequently must household single and multiple In accordance with the manufactures recommendations, at least monthly.
single station detectors be inspected and tested?
How frequently must household single and multiple At least 3 years, by a qualified service technician.
station detectors be inspected and tested?
How frequently must heat detectors be tested? Two or more annually, different detectors must be tested each year, and within 5
years all detectors must have been tested.
What does "restorable" mean? The detector can be "restored" or "reused" after it has initiated.
What does "non-restorable" mean? The detector cannot be 're-used" after it has initiated an alarm. (Think of a heat
detector, which self destructs upon initiating.)
What size conductors are permitted? Size 18 AWG and 16 AWG are permitted, provided they do not exceed certain
rated ampacities
What is used to protect transformers or other devices An overcurrent device not rated over 20 Amperes
supplied from power-supply conductors?
When located within 7ft of the floor, how shall cables be Cables shall be fastened in an approved manner at intervals of not more than 18
fastened? inches.
Single conductors shall not be smaller that ___ AWG? 18
, Conductors of 26AWG shall only be permitted in which Where spliced with a connector listed as suitable for 26 to 24 AWG.
circumstances?
How should PLFA conductors NOT be installed? PLFA conductors shall not be strapped, taped or attached to the exterior of any
conduit or raceway.
What is Plenum cable? What are its characteristics? Cable that can be installed in ducts, plenums or other spaces used for
environment air. It has adequate fire resistance and low smoke-producing
characteristics.
What is riser cable? What are its characteristics? Cable to be used in vertical wire runs in shafts or between floors. Not to be used
where Plenum cable is required. It is capable of preventing fire from rising form
floor-to-floor.
What is Genral Purpose Cable? What are its Cable for general purpose fire alarm use. Not to be used where Plenum or Riser
characteristics? cable is required. It is resistant to the spread of fire.
What type shall plenum cable be? What substitutions are Power Limited Fire Alarm Plenum (FPLP) CMP can be substituted.
allowed?
What type shall riser wire be? What substitutions are Power Limited Fire Alarm Riser (FPLR) CMP,FPLP,CMR can be substituted.
permitted?
What type shall general purpose wire be? What Power Limited Fire Alarm (FPL) CMP,FPLP,CMR,FPLR,CMG, and CM can be
substitutions are permitted? substituted. (All types)
What is the maximum voltage permitted through multi- 150 volts
conductor NPLFA cables?
What is the voltage rating of PLFA cables? Not less than 300 volts
Shall the voltage be marked on PLFA cables? No, because they may be misinterpreted and used for electrical applications.
What is a "Rate Compensation Detector"? A device that responds when the temperature reaches a pre-determined level.
What is a "Rate of Rise Detector" A device that responds when the temperature rises at a rate exceeding a pre-
determined value.
What is a Smoke Detector? A device that detects both visible and invisible combustion particles.
Which sensor is best at detecting invisible smoke Ionization
particles?
Which sensor is best at detecting thick, visible smoke Photoelectric
particles?
