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Exam (elaborations)

TFM13 2023/2024 already graded A+

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TFM13 2023/2024 already graded A+

Institution
Tfm 12
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Tfm 12









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Institution
Tfm 12
Course
Tfm 12

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Uploaded on
December 22, 2023
Number of pages
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Written in
2023/2024
Type
Exam (elaborations)
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Subjects

  • tfm 12

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TFM13

What are the 3 basic requirements for all devices? - ANS1.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? - ANSANSI S3.41, or American
National Standard Emergency Evacuation Signal

Can the emergency evacuation signal be used for other devices? - ANSYes, so long as those
devices are used to indicate the need for evacuation

When can fire warning equipment incorporate voice notification? - ANSWhen 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? - ANSThe
hearing impaired party

In what 6 places must detectors be installed to meet the requirements? - ANS1. 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? - ANS1. 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? - ANS1. 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
upon removal or low battery condition.
4. Rechargeable batteries used for secondary power must be automatically recharged, be
recharged within 48 hours and provide a distinctive audible trouble signal before the battery is
incapable of powering the device.
5. Low power wireless systems must be powered by batteries that comply with 6.17

What must be visible on all AC power primary sources - ANSA 'power on' indicator. The AC
primary power must be supplied by a dedicated branch circuit or the unswitched 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 - ANS30

All plug-in installations shall have a... - ANSRestraining means (Transformer screw)

AC primary power must be supplied by a dedicated branch circuit or... - ANS... The unswitched
portion of a branch circuit used for power and lighting

What does GFCI stand for - ANSGround Fault Circuit Interrupter

What does AFCI stand for - ANSArc Fault Circuit Interrupter

Operation of a switch or GFCI shall not cause loss of what - ANSPrimary power

Smoke alarms powered by AFCI shall have... - ANS...a source of secondary power

Neither loss nor restoration of primary power shall cause what - ANSAlarm signals to generate

If secondary power is provided, the primary power source must be capable of what -
ANSOperating the system under full load with the secondary power source disconnected.

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