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TFM 13 Prep Exam Questions with Verified Solutions 2024 Update
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TFM 13 Prep Exam Questions with Verified Solutions 2024Update.
What is the purpose of fire warning equipment? - ANS to provide a reliable means of notifying
occupants of the presence of fire and of the need to escape.
What are the 3 basic requirements for all devices? - ANS 1. They must be approved and listed
for the purposes for which they are intended
2. All devices will be installed according to manufacturer’s recommendations
3. The required minimum and location of detectors shall be satisfied.
What is the emergency evacuation signal that shall be used? - ANS ANSI S3.41, or American
National Standard Emergency Evacuation Signal
Can the emergency evacuation signal be used for other devices? - ANS Yes, so long as those
devices are used to indicate the need for evacuation
When can fire warning equipment incorporate voice notification? - ANS When the voice
message is completely contained within the 1.5 second pause of the emergency evacuation
signal.
When the voice message is first preceded by a minimum of 8 cycles of the emergency
evacuation signal
When the voice message interrupts the emergency evacuation signal for no longer than 10
seconds, and is followed by 2 cycles of the emergency evacuation signal.
Whose responsibility is it to inform a technician of occupants with hearing disabilities? - ANS
The hearing impaired party
In what 6 places must detectors be installed to meet the requirements? - ANS 1. In all sleeping
and guest rooms
2. Outside of all sleeping rooms, within 21ft of the door
3. on every level, including basements
4. on every level of a residential board and care occupancy, including basements
5. in the living areas of a guest suite
6. in the living areas of a residential board and care occupancy
All points on a ceiling shall have a smoke alarm within a distance of _________ travel distance
or shall have the equivalent of ___________ smoke alarm per _________ meter squared - ANS
• 9.1m (30ft)
• One
• 46.5m2 (500ft2)
In what 4 ways are smoke and heat alarms permitted to be powered? - ANS 1. Commercial light
and power supply capable of operating the device for at least 24 hours in normal condition and
4 minutes of alarm
2. A noncommercial AC source with secondary power source capable of operating the device
for at least 7 days in the normal condition and 4 minutes of alarm.
3. A non-rechargeable, non-replaceable primary battery capable of operating the device for at
least 10 years and 4 minutes of alarm, followed by 7 days of trouble.
4. If battery primary power is permitted, requirements must meet 11.6.6 and 11.6.7
5. A spring wound mechanism with visible indication to show sufficient operating power is
available
In what 5 ways are household smoke and heat alarms permitted to be powered? - ANS 1. Two
independent power sources. Primary shall be commercial light and power, secondary is a
rechargeable battery.
2. Secondary source must be capable of operating the device for at least 24 hours and 4
minutes of alarm.
3. Secondary power source must be supervised, causing audible and visible trouble signals
, What must be visible on all AC power primary sources? - ANS A 'power on' indicator. The AC
primary power must be supplied by a dedicated branch circuit or the unstitched portion of a
branch circuit used for power and lighting
Electrical systems not designed to be installed by an electrician shall be powered by a source
not in excess of how many volts? - ANS 30
All plug-in installations shall have a... - ANS Restraining means (Transformer screw)
AC primary power must be supplied by a dedicated branch circuit or... - ANS the unstitched
portion of a branch circuit used for power and lighting
What does GFCI stand for? - ANS Ground Fault Circuit Interrupter
What does AFCI stand for? - ANS Arc Fault Circuit Interrupter
Operation of a switch or GFCI shall not cause loss of what? - ANS Primary power
Smoke alarms powered by AFCI shall have...? - ANS a source of secondary power
Neither loss nor restoration of primary power shall cause what? - ANS Alarm signals to generate
If secondary power is provided, the primary power source must be capable of what? - ANS
Operating the system under full load with the secondary power source disconnected.
A list of acceptable replacement batteries must be placed by the manufacturer in what location?
- ANS Near the battery compartment
If a rechargeable battery is used, it must be fully recharged within how many hours? - ANS Four
hours
A rechargeable battery must be capable of producing a trouble signal at least _______ a minute
for _________ consecutive days - ANS One, Seven
Is a visible notification appliance required to be supplied with a secondary power supply? - ANS
NO
If smoke alarms are powered by a primary battery, all power requirements must be met for at
least... - ANS One year, including weekly testing
Any failure of non-reliable or short life component within a detector shall result in what? - ANS A
trouble signal must be generated
Each heat detector shall be listed for spacing of not less than..? - ANS 15m (50ft)
Fixed temperature detectors shall have a rating of at least how many degrees above ambient
temperature? - ANS 14C (25F)
Fixed temperature detectors shall not be rated more than higher than the maximum ambient
temperature. - ANS 28C (50F)
All detectors must be provided with a convenient means of what? - ANS Testing operability
If power is lost and then restored, the system control equipment must... - ANS automatically
restore itself
What three procedures must be in place before it is permitted to install a means to silence
trouble/supervisory/alarm signals? - ANS 1. The means shall be key operated and contained
within a locked enclosure.
2. The means shall transfer its audible warning to a visual warning. (I.e. flashing lamp)
3. The audible trouble signal shall sound when the system is set to this 'silent' mode and no
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