TFM12 Test with 100% Correct Answers
REVISED & VERIFIED|| GRADED A+||
LATEST UPDATE 2026
What does PLFA stand for? -CORRECTANSWER Power Limited Fire Alarm
What does NPLFA stand for? -CORRECTANSWER Non Power Limited Fire Alarm
What material must NPLFA circuit conductors be made from -CORRECTANSWER Only
solid or stranded copper is permitted
What is a single station detector? -CORRECTANSWER Battery powered smoke
detectors that do not communicate off premises.
What is a multiple station detector? -CORRECTANSWER 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 single station detectors be
inspected and tested? -CORRECTANSWER In accordance with the manufactures
recommendations, at least monthly.
How frequently must household single and multiple station detectors be inspected and
tested? -CORRECTANSWER At least 3 years, by a qualified service technician.
How frequently must heat detectors be tested? -CORRECTANSWER 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? -CORRECTANSWER The detector can be "restored" or
"reused" after it has initiated.
What does "non-restorable" mean? -CORRECTANSWER 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? -CORRECTANSWER 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 supplied from power-supply
conductors? -CORRECTANSWER An overcurrent device not rated over 20 Amperes
REVISED & VERIFIED|| GRADED A+||
LATEST UPDATE 2026
What does PLFA stand for? -CORRECTANSWER Power Limited Fire Alarm
What does NPLFA stand for? -CORRECTANSWER Non Power Limited Fire Alarm
What material must NPLFA circuit conductors be made from -CORRECTANSWER Only
solid or stranded copper is permitted
What is a single station detector? -CORRECTANSWER Battery powered smoke
detectors that do not communicate off premises.
What is a multiple station detector? -CORRECTANSWER 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 single station detectors be
inspected and tested? -CORRECTANSWER In accordance with the manufactures
recommendations, at least monthly.
How frequently must household single and multiple station detectors be inspected and
tested? -CORRECTANSWER At least 3 years, by a qualified service technician.
How frequently must heat detectors be tested? -CORRECTANSWER 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? -CORRECTANSWER The detector can be "restored" or
"reused" after it has initiated.
What does "non-restorable" mean? -CORRECTANSWER 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? -CORRECTANSWER 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 supplied from power-supply
conductors? -CORRECTANSWER An overcurrent device not rated over 20 Amperes
