FIRE ALARM TFM12 EXAM
QUESTIONS WITH CORRECT
SOLUTIONS||UPDATED 2026/2027
SYLLABUS||100% GUARANTEED
PASS||ALREADY GRADED
A+||<<LATEST VERSION>>
What is a ionization smoke detector? - ANSWER ✓ A detector that uses a small
amount of radioactive material to ionize the air between two differently charge
electrodes. When smoke is present between these electrodes, it causes the
conductance of the air to decrease, and this causes the alarm to trip.
What is a photoelectric light scattering smoke detection? - ANSWER ✓ A
detector that uses light source and a photosensitive sensor, arranged so that light
will only fall on the sensor when smoke particles are present. The particles reflect
and retract light towards the sensor tripping the alarm.
What is important about the way trouble signals sound? - ANSWER ✓ They must
be distinctive from alarm signals.
What three procedures must be in place before it is permitted to install a means to
silence trouble/supervisory/alarm signals? - ANSWER ✓ 1. The means shall be
key operated and contained within the locked enclosure.
2. The means shall transfer its audible warning visual warning.
3. The audible trouble signal shall sound when the system is set to this silent mode
and no trouble or supervisory exists.
Fire/Supervisory signals shall be __ in sound from other signals and shall not be
used for any other purpose. - ANSWER ✓ Distinctive
What code shall all wiring, cable and equipment be in accordance with? -
ANSWER ✓ NFPA 70 and the national electrical code. Specifically articles 760,
770 and 800
, All systems shall test free of ___, except for applications which ___ are approved
- ANSWER ✓ Grounds, Grounds
So long as single open, ground or short circuit conditions do not affect the
operation of equipment, what is not needed? - ANSWER ✓ Monitoring for
integrity. Such conditions must not prevent alarm, trouble or supervisory signals
being sent.
If speakers are used to generate audible fire signals, what rule must apply? -
ANSWER ✓ The speaker must be monitored for integrity. Any failure should
result in a trouble signal.
In one or two family dwelling, where must smoke detectors be located? -
ANSWER ✓ All sleeping rooms, outside of each sleeping area and on all levels of
the dwelling, (including basements)
Where must spot type heat and smoke sensors be located on walls and ceilings? -
ANSWER ✓ On the ceiling - not less than 4 in from the sidewalls and ceilings
On the wall- between 4in and 12in from the ceiling.
When more that one detector is used on a ceiling, what spacing measurement shall
be used? - ANSWER ✓ All points shall have a detector equal to 0.7 (70%) times
listed spacing
Can detector be installed during construction? - ANSWER ✓ No, unless they are
replaced after construction is complete.
Why must a smoke detector not be placed above 250ft? (Smoke detector shall not
be) - ANSWER ✓ Because of the effects of stratification, smoke will often not
rise above this point.
As the mounting location of smokes and heats get higher, the listed spacing must
be reduced True or False? - ANSWER ✓ FALSE. The higher a heat is positioned,
the smaller spacing. The higher a smoke us positioned, the wider the spacing
QUESTIONS WITH CORRECT
SOLUTIONS||UPDATED 2026/2027
SYLLABUS||100% GUARANTEED
PASS||ALREADY GRADED
A+||<<LATEST VERSION>>
What is a ionization smoke detector? - ANSWER ✓ A detector that uses a small
amount of radioactive material to ionize the air between two differently charge
electrodes. When smoke is present between these electrodes, it causes the
conductance of the air to decrease, and this causes the alarm to trip.
What is a photoelectric light scattering smoke detection? - ANSWER ✓ A
detector that uses light source and a photosensitive sensor, arranged so that light
will only fall on the sensor when smoke particles are present. The particles reflect
and retract light towards the sensor tripping the alarm.
What is important about the way trouble signals sound? - ANSWER ✓ They must
be distinctive from alarm signals.
What three procedures must be in place before it is permitted to install a means to
silence trouble/supervisory/alarm signals? - ANSWER ✓ 1. The means shall be
key operated and contained within the locked enclosure.
2. The means shall transfer its audible warning visual warning.
3. The audible trouble signal shall sound when the system is set to this silent mode
and no trouble or supervisory exists.
Fire/Supervisory signals shall be __ in sound from other signals and shall not be
used for any other purpose. - ANSWER ✓ Distinctive
What code shall all wiring, cable and equipment be in accordance with? -
ANSWER ✓ NFPA 70 and the national electrical code. Specifically articles 760,
770 and 800
, All systems shall test free of ___, except for applications which ___ are approved
- ANSWER ✓ Grounds, Grounds
So long as single open, ground or short circuit conditions do not affect the
operation of equipment, what is not needed? - ANSWER ✓ Monitoring for
integrity. Such conditions must not prevent alarm, trouble or supervisory signals
being sent.
If speakers are used to generate audible fire signals, what rule must apply? -
ANSWER ✓ The speaker must be monitored for integrity. Any failure should
result in a trouble signal.
In one or two family dwelling, where must smoke detectors be located? -
ANSWER ✓ All sleeping rooms, outside of each sleeping area and on all levels of
the dwelling, (including basements)
Where must spot type heat and smoke sensors be located on walls and ceilings? -
ANSWER ✓ On the ceiling - not less than 4 in from the sidewalls and ceilings
On the wall- between 4in and 12in from the ceiling.
When more that one detector is used on a ceiling, what spacing measurement shall
be used? - ANSWER ✓ All points shall have a detector equal to 0.7 (70%) times
listed spacing
Can detector be installed during construction? - ANSWER ✓ No, unless they are
replaced after construction is complete.
Why must a smoke detector not be placed above 250ft? (Smoke detector shall not
be) - ANSWER ✓ Because of the effects of stratification, smoke will often not
rise above this point.
As the mounting location of smokes and heats get higher, the listed spacing must
be reduced True or False? - ANSWER ✓ FALSE. The higher a heat is positioned,
the smaller spacing. The higher a smoke us positioned, the wider the spacing
