Fire Alarm Flashcards
(266 cards)
1
Q
What is the recommended coded signal designation for a building supervisory signal from the basement?
A
3 - 1 tempora
10.12.2
2
Q
Prior to the installation or alteration of fire alarm equipment or wiring, what governing authority must be notified?
A
The authority having jurisdiction
“AHJ”
10.20.2
3
Q
How long must maintenance,inspection and testing records for FA system be maintained for?
A
Until the next test and for 1 year after.
4
Q
Splices or joints in a public FA reporting system conductors shall:
A
be permitted in listed boxes
5
Q
An auxiliary FA system which is connected through the municipal FA system to the fire service communications center shall be which of the following types?
A
Local energy and shunt
6
Q
A FA system shall incorporate how many independent and reliable power supplies?
A
2
7
Q
What is the maximum number of SMOKE alarms(initiating devices) that may be interconnected where the interconnecting means is SUPERVISED in dwellings?
A
42
8
Q
Unless specifically designed and listed for the conditions, smoke detectors shall not be installed in which of the following ambient conditions?
A
Temperatures above 100 degrees F
9
Q
How long after an initiating device activates must the alarm notification appliances begin annunciation at the protected premises
A
10 seconds
10
Q
Smoke detectors installed in single family dwellings shall be replaced at what intervals?
A
10 years
11
Q
How many visible notification appliances shall be located in a corridor that is 200 feet long?
A
3
12
Q
FA wiring inside buildings including circuits and disconnecting means shall be identified by the use of which of the following?
A
Red covers or doors,red markings, “public fire alarm circuit” markings
13
Q
In order to monitor the circuit integrity of a FA system loop, interruption due to a bad connection at a device is expected to send a trouble signal to the FA control panel. in order to assure a trouble signal is sent,two and four wire detector connections must employ which of the following in order to be considered a supervised circuit?
A
Duplicate terminals
14
Q
The maximum number of unmonitored small alarm devices that can be interconnected is.?
A
12
15
Q
The number of initiating devices that can be interconnected on a household fire alarm system is.?
A
18
16
Q
A Carbon monoxide detector shall be located within 10 ft from a bedroom door.
A
10 ft
17
Q
The maximum number of UNMONITORED small alarm devices that can be interconnected is.?
A
12
18
Q
By code a ceiling is a level ceiling if the slope is
A
Equal to or less than 1 in 8
19
Q
Fire alarm equipment shall be designed so that it is capable of performing at ambient temperature of a minimum of ?
A
32 degrees and a maximum of 120 degrees.
20
Q
What is the lowest range of heat detector ?
A
100- degrees F
21
Q
Transformers and other devices supplied from the power supply conductors supplying power to a power limited fire alarm panel. Shall be protected by an overcurrent device rated not over ?
A
20Amps.
22
Q
When an audible notification appliance is in a sleeping area of a college dorm. They shall have a sound level of 10 db above ambient sound level and minimum output of 75db.
A
No Answer just statement
23
Q
What is the maximum number of HEAT alarms (initiating devices) that may be interconnected where the interconnecting means is not supervised in a dwelling?
A
18
24
Q
Which fire alarm circuit class is considered the most reliable because of its abilty to remain fully operational when a single open or ground fault?
A
Class A
25
A fire alarm shall incorporate how many independent and reliable power supplies?
2
26
The branch circuit overcurrent protection supplying the fire alarm system shall not exceed ?
20amps
27
Fire alarm system cables exposed within 7ft (2.1m) of the floor shall be securely fastened at intervals not over
18in.
28
unless specifically designed and listed for the expected conditions, smoke detectors shall not be installed if any of the following ambient conditions exist:
1. temperature below 32⁰F (0⁰C)
2. temperature above 100⁰F (38⁰C
3. relative humidity above 93 percent )
4. air velocity greater than 300ft/min (1.5in/sec)
29
the total sound pressure level produced by combing the ambient sound pressure level with all audible notification appliances operating shall not exceed
110 dBA at the minimum hearing distance
30
NFPA 72 recommends that coverage area for a single zone should not exceed ?
22,500 square feet
31
When you place smoke and heat detector on a peaked ceiling, you should measure
3ft horizontally from peak in both directions
32
Smoke detectors installed within 20ft of kitchens are required to be ?
photo electric detectors
33
Typical single family home you need to have at least one smoke installed for every ?
1,200 square feet
34
Smoke detectors installed on a wall, no portion of these detectors should be installed within
4” of the ceiling
35
Wall mount visual notification must be mounted between
80 and 96” from floor level
36
Wall mounted notification devices should be located such that the top of it is at least ?
6” below ceiling
37
Max ceiling height of visual notification ?
30ft
38
How far can you run a bell on 18awg.?
75ft
39
How far can you run a bell on 16 awg.?
150ft
40
What is the lowest fixed temp for a heat detector
100⁰
41
Which of the following defines the purpose of the NFPA-72?
It establishes levels of performance, It defines the means of signal initiation and it determines the reliability of the various systems
42
What kind of smoke detector would be best suited for an air duct system because of its ability to detect large smoke particles?
Photoelectric
43
The maximum ceiling temperature in Celsius for a fixed temperature heat sensing fire detector initiating device with an intermediate temperature classification shall be which of the following?
69 degrees
44
What is the recommended separation between raceways enclosing Class A outgoing in return fire alarm circuit conductors installed horizontally?
4 feet
45
What is the maximum distance between manually actuated fire boxes?
200 feet
46
What type of detector would best be suited to detect a smoldering embers?
Photo-Electric
47
What is the minimum required sound level above ambient sound level in decibels measured at pillow level of a dwelling unit sleeping area for a FA system audible device?
15db
48
According to the NFPA 72, what is the minimum number of smoke detectors required in smoke alarm system?
1
49
What is minimum required CD rating of a visible notification appliance to comply with the standard for safety signaling devices for the hearing impaired?
15cd
50
A sprinkler rated at 155 degrees F is installed in a elevator hoistway. What temperature of heat detector must be installed for elevator shutdown?
Ordinary
51
What type of smoke detector detects the invisible smoke particles produced by a flaming fire the best?
Ionization detector
52
In initiating detector should not be located in the direct airflow of an HVAC duct or plenum or within how many feet of the air supply diffuser or return air opening?
3 feet
53
A digital alarm communication transmitter (DACT) used with a supervising station fire alarm system shall be tested at what interval after initial re acceptance?
Annually
54
The installation of fire alarm system wiring, cables, and alarm equipment shall be in accordance with which of the following?
NEC NFPA-70, NFPA-72 and listing or labeling
55
The storage batteries used as a source of power for a emergency systems. Shall be of suitable rating and capacity to supply and maintain the total load for a minimum of .?
90 Min
56
The number of initiating devices that can be interconnected on a household fire alarm system is.?
18
57
The safety margin required when sizing a battery bank for a second power is.?
20 %
58
The maximum number of unmonitored small alarm devices that can be interconnected is.?
12
59
A system installer as listed in NEFA 72 must be supervised by a qualified person. Qualified person shall include but not limited to all but one of the following
Installing company trained and tested
60
What is/are the minimum number of conductors of a DACT (digital alarm communicator transmitter) at the protected premises
Two
61
Sound pressure is measured by using a.?
A weighted scale
62
The minimum mounting height of a pull station shall be at least ?
3.5ft and not more than 4.5 ft.
63
What type of residential detectors is required to have the means to silence? If it is installed within 20 ft of a kitchen.?
An Ionized smoke
64
Fixed temperature detectors have to be removed and sent out for testing after 15 yrs. How many have to be sent per testing period.?
2 per 100
65
By code a ceiling is a level ceiling if the slope is ?
Equal to or less than 1 in 8
66
Class A circuits are considered to be more reliable than class B circuits. However neither class A or B remain operational during
A wire to wire start
67
A system of devices that uses a fire alarm control unit(panel)to produce an alarm signal in a household for the purpose of notifying the occupants of the presence of a fire. So that they will evacuate the premises is a
Household fire alarm system
68
When installing the fire alarm within the dwelling unit in a apartment building. Is it permitted to actuate the building alarm system
No
69
Fire alarm equipment shall be designed so that it is capable of performing at ambient temperature of a minimum of
32 degrees and a maximum of 120 degrees.
70
A pull station is mounted near or inside a corner in a hall. How close to the corner can it be.?
18”
71
All fire alarm systems require inspections, testing, maintenance programs. Per manufactures standards. Who is responsible for the testing.?
The owner
72
PIR motion detectors are prone to fake alarms. Which of the following wont.?
Air turbulence
73
What is the lowest range of heat detector ?
100-134 degrees F
74
Transformers and other devices supplied from the power supply conductors supplying power to a power limited fire alarm panel.
Shall be protected by an overcurrent device rated not over 20Amps.
75
Audible notification appliances intended for operation in private mode
Shall have a sound level of not less than 45db at 3 meters(10db)
76
Initiation of the fire alarm signal shall occur within 90 sec of water flow at the alarm initiating device. When flow occurs that is equal or greater when that from a single-sprinkler of the smallest size installed in the system.
-----
77
Heat detectors are used to shut power to the elevators prior to sprinkler operation
----
78
Smoke/heat is a combination initiation device
----
79
. 64 is the multiplier of the spacing for a ceiling that is 19 ft high.
----
80
125 feet is the max spacing for a smoke detector for room that has 60 air current changes per hour.
----
81
What type of detector detects continuous along a particular path?
Line-type detector
82
How long should a battery backup (secondary power supply) used with an emergency voice communications service be capable of operating the system under quiescent load?
24 hours
83
What is the maximum number of HEAT alarms (initiating devices) that may be interconnected where the interconnecting means is not supervised in a dwelling?
18
84
How long should a battery backup (secondary power supply) used with an emergency voice/alarm speaker service be capable of operating the system during a fire?
15 minutes
85
What is the maximum number of smoke alarms (initiating devices) that may be interconnected where the interconnecting means is NOT supervised in a dwelling?
12
86
Which fire alarm circuit class is considered the most reliable because of its ability to remain fully operational when a single open or ground fault?
Class A
87
A fire alarm shall incorporate how many independent and reliable power supplies?
2
88
Manual fire alarm boxes shall be located within ?
5ft (1.5m) of each exit
89
The branch circuit overcurrent protection supplying the fire alarm system shall not exceed
20 Amps
90
fire alarm system cables exposed within 7ft (2.1m) of the floor shall be securely fastened at intervals ?
-
not over 18in.
91
Detectors that are installed in the air duct system shall not be used as a substitute for the open area protection
-
----
92
A heat sensing detector integrally mounted on a smoke detector shall be listed for not less than
50ft spacing.
93
activation of the initiating device shall occur within 90 seconds of the water flow at the alarm initiating device when flow occurs that is equal to or greater than that from a single sprinkler of the smallest orifice size installed in the system
----
94
water temp supervisory signal initiating device – one signal shall indicate a decrease in water temperature to 40⁰F (4.4⁰C) and the other shall indicate its restoration to above 40⁰F (4.4⁰C)
----
95
-the total sound pressure level produced by combing the ambient sound pressure level with all audible notification appliances operating shall not exceed 110 dBA at the minimum hearing distance
----
96
where a digital alarm communicator transmitter (DACT) is used, the DACT serving the protected premises shall only require a single telephone line and shall only require a call to a single digital alarm communicator receiver (DACR) number
----
97
At the max you can have 5 waterflow and/or 20 supervisory switches connected to a single zone
----
98
When you place smoke and heat detector on a peaked ceiling, you should measure 3ft horizontally from peak in both directions
----
99
Typical single family home you need to have at least one smoke installed for every
1,200 square feet
100
When you install smoke detectors on the ceiling, no portion of these detectors should be placed within
4” of any sidewall
101
Wall mount visual notification must be mounted between
80 and 96” from floor level
102
Smoke detectors installed on a wall, no portion of these detectors should be installed within
4” of the ceiling
103
50ft x 50ft max room coverage for visual notification
----
104
When the ceiling height exceeds 10 feet, the heat detector spacing will have to be reduced
----
105
Level ceilings have a slope of less than 1 ½” per foot
----
106
Wall mounted notification devices should be located such that the top of it is at least
6” below ceiling
107
Max ceiling height of visual notification?
30ft
108
A smooth ceiling refers to a ceiling surface which is uninterrupted by continuous projections extending more than
4 inches below the surface
109
In a residential building , a high ceiling with a slope greater than 1 foot per 8 feet must have a smoke detector configured in the high side of the room
----
110
Smoke detectors capable of field adjustment of sensitivity should provide an adjustment range of at least
6% per foot obscuration.
111
The digital alarm communicator transmitter is always located at the protected premises
----
112
Heat detectors are not considered as life safety equipments
----
113
Effective masked threshold refers to the minimum sound level at which a tone signal can become audible in ambient noise
----
114
Fixed temperature spot type detectors are most suitable for enclosed areas
----
115
A secondary power supply should be able to provide power to the protected premises fire alarm system in no longer than 10 seconds when the primary power supply fails
----
116
A nonpower limited fire alarm circuit NPLFA cannot operate at more than
600v
117
Overcurrent protection should not exceed?
7 amps for #18AWG and 8 amps for #16 AWG
118
Largest area a fire area zone is
22,500ft
119
In a 2-bed ranch house with a basement, how many smoke detectors do you need?
4, 1 in each bedroom, 1 in general area outside the bedrooms and 1 in the basement
120
100⁰ is the lowest fixed temp for a heat detector
----
121
Beam detectors are supposed to be a minimum of?
20 inches from the ceiling
122
Max time allowed on a flow switch
90 seconds
123
The FACP needs to be on their own circuit with a 20amp breaker with 12 gauge wire
----
124
NPLFA Conductor Materials. Conductors shall be 18 AWG or larger solid or stranded copper.
----
125
The input leads of a transformer or other power source supplying power-limited fire alarm circuits shall be permitted to be smaller than 14AWG, but not smaller than 18AWG, if they are not over 300mm (12in) long and if they have insulation that complies with 760.49(B
-----
126
What type of detector will detect the radiant energy emitted by embers produced from a Class A and Class D combustible materials?
Spark /Ember
127
Each Bay formed by the beams of a ceiling where a projected beam type detector will be installed shall be treated as which of the following areas when the ceiling beams project more than 18 inches below a ceiling and they are located more than 8 feet on center?
As a separate area
128
Partitions shall be considered as separate rooms when they extend to within what percent of the ceiling height?
15%
129
Smoke detectors in other than one and two family dwellings shall be tested in place to ensure system smoke entry into the sensing chamber and alarm response using which of the following methods?
Smoke or listed aerosol
130
Smoke detectors in other than one and two family dwellings shall be tested using which of the following methods?
According to manufactures instructions
131
In a premises fire alarm system, if the exit doors are unlocked by the FA system when shall the unlocking function occur in relation to the fire alarm system activation in the area served by the lock doors?
Prior to or concurrent with
132
The color code for a rate compensated heat sensing fire detector initiating device with an extra high temperature classification would be which of the following?
Red
133
Unless exempted by applicable laws and codes, multiple smokes or heat alarms used to provide a fire warning function in a dwelling unit, suite of rooms, or similar area shall be arraigned so that the operation of any smoke or heat alarm causes which of the following?
All alarms within location to sound
134
What is the recommended code signal designation for a building supervisory signal from the sub basement?
3- 2
135
In duct smoke detectors more than 10 feet above the finish floor or where that detectors alarm or supervisory indicator is not visible to responding personnel must be provided with which of the following?
A supervisory indicator and a remote alarm
136
When spacing out smoke detectors raised floors in suspended ceilings shall?
Be treated as separate rooms
137
When does the NFPA-72 code allow the intermixing of different types of audible appliances within a building?
When approved by the AHJ Authority having jurisdiction
138
Is the minimum required CD rating of a visible notification appliance located in a sleeping area with a greater distance of 24” from the ceiling to the top of the lens?
110cd
139
what is the maximum travel distance between smoke alarms in dwellings?
30 feet
140
which type of sprinkler is most commonly used to protect buildings?
wet pipe sprinkler
141
in addressable fire alarm system control unit monitors the status of initiating devices how?
by periodically polling the devices
142
open grounds result in a______ signal
trouble
143
initiating device circuits and notification appliances circuits monitor the circuits for integrity by?
a small current through the circuit
144
A fire sprinkler water flow switch when actuated will produce a _______ signal
Alarm
145
A conductor returning to the control unit form the last field device on a circuit might indicate a
Class A circuit
146
notification appliances used outdoors may result in a_____ listing for such use
open circuit
147
which of the following is a audible textual appliance?
Speaker
148
the primary purpose of dwelling fire alarm wanting equipment is?
Property protection
149
for the purposes of fire protection item found in a protected space often referred to as?
Fuels
150
A high rise is more than____ from the lowest level the fire dept access to the highest level of occupancy
75 feet
151
which device when actuated and into interconnected to another similar device will cause the other device to actuate?
Multiple station alarm
152
A manual FA box/pull station when actuated will produce a____ signal
Alarm
153
Upon detection of a trouble condition FA system controls must initiate a trouble signal within______Seconds?
200 seconds
154
what is the minimum size conductor for use in alisted multi conductor cable in a power limited FA circuit within a building?
26 AWG
155
Inside a FA control unit what is the minimum separation between 110v AC lines and the power limited wires?
0.25"
156
Splices in cable trays shall be _______?
Accessible
157
The minimum voltage rating of a power limited FA cable is ?
300 volts
158
The fire alarm cable is installed under a slab to a fire sprinkler flow switch. The cable is not installed in conduit. The cable should be?
Listed for wet locations
159
Primary power for the FA system shall be permitted to ?
Be an individual branch circuit
160
FACU is abbreviation for
Fire alarm control unit
161
What is the minimum cd of a ceiling mounted strobe light that is in a 46 x 46 room with a ceiling height of 20 feet?
80cd
| Table 18 5.5.4.1
162
How many smoke detectors are needed in a 50 x50 room, assuming 30 foot listed spacing?
3
| 17.7.3.2.3.1
163
What is the maximum permitted brightness of a FA strobe light
1000cd
18 5.3. 4
164
what is the adjusted spacing for a heat detector (listed for 50 feet )if the ceiling height is 23 feet
26 ?
17.6.3.5.1
26 ft Less than between the spacing
165
What is the acceptable flash rate of a FA strobe light?
The flash rate shall not exceed two flashes per second(2Hz) nor be less than one flash per second (1Hz)
3.1
166
What color code is used for an ultra high heat detector?
Orange
| 17.6.2.1
167
What is the minimum rating of a single wall mounted FA strobe light in a 120 x 120 room?
540 cd
| 18.5.5.4.1
168
What is the maximum humidity that a smoke detector may be installed in ?
Above 93%
| 17.7.1.8
169
What is the maximum mounting height of a wall mounted combo horn / strobe?
less than 96 "
| 18.5.5.1
170
How far from the high side of a shed ceiling is the first row of smoke detectors placed?
36 "
| 17.6.3.4.2.1
171
How many Radio Alarm Repeater Station Receivers must be provided in a Type 6 system?
2
| 26.6.3.3.2.5
172
How long do you have to pass your D license exam after approved?
1 Year
173
at what height does ceiling height become the dominant factor in heat detector spacing?
10 feet
174
Side wall mounted spot type heat detectors shall be located?
Between 4 and 12 inches from the ceiling
175
The required location for a wall mounted audible notification appliance in a building is
Not less than 90" above the floor and 6" below the ceiling
176
visible notification appliances must be synchronized where an occupant can see
More than 2 appliances or groups operating at the same time
177
The maximum time delay for operation of a sprinkler water flow switch used for elevator power shutdown?
No time delay mechanism is permitted
178
Smoke detectors installed below raised floors
Must be spaced as for a separate room
179
equipment connected to a fire alarm circuit must be listed?
For the purpose for which it is used
180
Power for a FA system shall be permitted
Before the service disconnect in the main panel
| 760.41 A (B)
181
how far should fire or security communications cables be maintained from lighting conductors?
2"
182
what is the minimum input wire size for a transformer supplying power limited fire alarm system?
18AWG
183
power limited fire protection signaling circuit cables installed in a duct used for environmental air must be of what type?
FPLP cable
184
the number of supervisory device is permitted to be connected to a single initiating device circuit shall not exceed?
20
185
A heat sensing fire detector integrally mounted on a smoke detector shall not be listed or approved for no less than?
50 feet
186
When does a D licence expire?
July 31
187
What is the total resistance of 3 100 ohm resistors in parallel?
33.3 ohms
188
Radiant energy sensing fire detectors are categorized as
Flame detector and spark/ember detectors
189
Sprinkler waterflow devices must be tested
Annually
190
Battery calculations for a FA system require a reserve capacity of
20%
191
A fail safe circuit is
Designated as a Class D
192
In a elevator lobby serving 2 elevators ( of the same control group) what is the required to initiate fire firelighters service recall?
One smoke detector with in 21 feet of the elevator door
193
Which of the following circuit types is/are addressable?
IDC
194
In NFPA-72 an asterisk(*) following a paragraph number indicates?
Explanation can be found in Annex A
195
For a fixed temperature heat detector the temperature rating of the detector shall be?
At least 20 degrees above max ambient temp
196
Guards for mechanical protection of notification appliances are required
Where the appliances are subject to mechanical damage
197
Is it required that you must provide the Enforcing Authority the Floor plan layout of all the devices and control equipment on a Fire alarm system?
True
| 7.2.1
198
Is it required that Record of Completion documentation be updated to reflect additions to the FA system?
True
| 7.7.1.5
199
Visible notification appliances shall be located not more than______ft from the end of a corridor with a separation of not greater than 100 ft between appliances.
15 ft
18.5.5.5.5
200
In a corridor application the visible shall be rated not less than____cd
15 cd
18.5.5.5.3
201
A control module that performs a Emergency Control function must be located within _____ft of the component controlling that function?
3 ft
21.2.4
202
a single fault on a Signaling Line Circuit ( SLC) shall not cause the loss of more than_____ addressable devices
50%
29.8.2.2(2)
203
What is the resistance per 1000ft of 8 AWG aluminum uncoated,stranded conductors?
0.778
| Table 8 chap 9
204
Unused openings in boxes are generally required to be ?
closed
205
The temperature associated with the ampacity of a conductor shall be so selected and coordinated as to not exceed the lowest temperature rating of any
Connected terminal, Conductor and Device
206
How many smoke detectors are needed in a 50 x 20 room, assuming 30 foot listed spacing?
3 smokes
207
what is the maximum spacing of a smoke detector that is placed in a room with air movement of 20 air changes per hour? per hour?
375 Square feet
208
Sprinkler waterflow devices must be tested ?
semiannually
209
Remote resetting of a protected premises FA control unit is only approved from ?
AHJ Authority having jurisdiction
210
An audible trouble signal shall automatically re-sound every____hours or until the fault is fixed?
24 hrs
10.15.9.1
211
Is it required the the Record of Completion documentation be updated to reflect additions to the FA system? T or F
True
212
A single story dwelling with a basement and 2 bedrooms. How many smokes are required?
4
213
When troubleshooting a FA system what is the best way to start?
Test and eliminate large sections
214
How far do you keep FA conductors away from lighting protection wires?
6 feet
215
How much separation is required in a fire alarm panel between 120 volts and 24 volt fire alarm conductors?
1/4" or 0.25
216
How long do smoke detectors stay in service?
10 yrs
217
A battery in a security alarm panel fails to charge. What will happen to the system
Visual indication will appear on the annunciator panel
218
Secondary power supply batteries are required to be marked with?
The date manufactured
219
FA signals used to notify building occupants of the need to evacuate or relocate are required to be?
A distinctive three- pulse temporal pattern
220
Alarm notification appliances must be tested ?
Annually
221
Back up design in a voice evac system how long should it operate on batteries?
15 Min
222
What is the max separation for visible notification appliances in a corridor?
100 feet
223
If a heat detector is used to shut down elevator power prior to sprinkler operation, they shall be placed within_____feet of each sprinkler head and be installed in accordance of chap 5
2 feet
10.5.71
224
When normal power to a Fire Alarm Panel is lost the secondary power must supply the power to the system with in____seconds
10 seconds
225
The max allowable loop resistance for an initiating circuit(IDC) is
specified in the manufactures install instructions
| 14.4.3.2
226
Emergency control function interface devices shall be located
Within 3 feet of the component controlling the emergency control function
21.2.4
227
A performance-based design of visible notification requires
A design that provides 0.0375 lumens /ft
228
Smoke alarms and detectors shall not be installed with in____inch horizontal path from a door to a bathroom
36 inch
29.8.3.4
229
Max coverage of a single smoke detector
900 sq ft
230
At what pressure drop must a supervisory signal be sent when monitoring pressurized tank?
10 psi
231
How many hours of school are required for a C license?
75 hrs
232
SLC circuit is addressable
---
233
Color of a ultra high heat detector is ?
Blue 250-324 degrees F
234
Chap 14 NFPA 72 2013 edition Inspecting and testing
---
235
The non power limited cable for riser use is?
NPLFR
236
Smoke alarms or detectors in basement must be mounted?
On the basement ceiling near the stairs
237
In a building fire emergency voice/alarm communication systems are usually found in?
High rise buildings
238
A protected premises fire alarm system that utilizes horns as audible notification apps has a primary power supply with a secondary power supply protected by batteries. How long do the batteries need to last?
24 hrs
239
Which device when interconnected to a similar device will cause it to actuate ?
Multiple station device
240
Max distance between High intensity strobes?
100ft
241
Sprinkler installed with a 155 degree offset what needs to be installed?
A 135 degree heat detector
242
ADA -Annex J
----
243
75ft is the MASS amendment for a high rise
---
244
10.12.12 Alarm box rounds
----
245
Overcurrent protection shall not exceed 7A or 18awg and 10 A on 16awg.
----
246
What is the rule of .seven and how does it apply?
All points on a ceiling shall a a detector within the distance equal to or less than .7 times the normal 30ft spacing.
17.7.3.1 NFPA 72 pg 98
247
How long must system design and function documents be kept for including alterations?
Shall be maintained for the life of the system
7.7.1.4 NFPA 72 pg 72-36
248
What is the purpose of inspection and testing?
To ensure compliance and installation is in accordance with the code and other install standards
114.2.11 NFPA 72 pg 72-75
249
Nationally recognized testing labs NRTL____ electrical products to provide a basis for approval by inspectors in the field?
Test and List
250
IDC: Initiating device circuit
SLC: Signaling line circuit
-----
251
TIMES:
* 24 hrs to respond to a trouble
* 8 hrs can have an impairment (can have only 1 at a time)
* 200 seconds automatic initiating devices or open or fault. open/close start/restore
* 90 seconds the HV fan has to come on
* Fan operation at desired state 60 sec. Completion of damper travel 75 seconds
Good to know
252
MEASUREMENTS
* 75 ft above the lowest level the fie dept can reach is a highrise
* 1 smoke per 900 sq ft 21' radius-42 in between 30 sq ft
* A pull station needs to be within 5 ft of an exit.
* 50% of a FA system has to be working= survivability
* 50% of stairways need to be pressurized in a highrise
* Different ceiling types start on pg 268
* Ceiling types Chap 17 NFPA72
Good to know
253
NFPA-72 CHAPTERS
Chap 3 Definitions: terms
Chap 7 Documentation: Design,acceptance,completion
Chap 10 Fundamentals: Functions of a FA system
Chap 12 Circuits/Pathways: Performance and survivablity
Chap 14 Inspection, Maintenance and Test
Chap 17 Initiating Devices:perform,select,location ofdevice
Chap 18: Notification devices Location and mounting
Chap 21 Emergency Control Function interfaces: Connection of FA system emergency communications
Chap 23 Protected Premises FA sys: Protection of life
Chap 24 Emergency Communication Systems: ECS
Good to know
254
All Supervisory will be at the "end of line" on a Class B circuit
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255
Total produced sound by combining ambient sound shall not exceed?
110 db
256
Sound from normal produced sound shall not last more than ????
60 sec
257
Strobes need to be in sync with in line of sight
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258
Required signals shall not be lost, interrupted or delayed by more than _____ seconds as a result of power loss.
15 sec
259
Voice evacuation has to be a woman's voice
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260
If a space is inhabitable it does not need a evacuation warning.
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261
Electric code book NFPA 70
Chap 1: General I
Chap 2: Wiring and Protection I All applies to
Chap 3: Wiring methods and Materials I electrical installs
Chap 4: Equipment for General use I
Chap 5: Special Occupancy I
Chap 6: Special Equipment I Supplements or modifies
Chap 7: Special Conditions I Chapters 1-7
Chap 8: Communications Systems
Chap 9: Tables
Annex A-J: Information
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262
Over current protection shall not exceed 7 amps for 18 AWG and 10 amp for 16 AWG !!!
On test
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263
Class 2 wiring is Low Voltage. Class 1 and 3 are high voltage(120v)
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264
Parallel circuit resister value will be lower than the lowest value
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265
A strobe needs to be within 15' from a end of corridor
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266
Ambient sound is the normal sound 65% of the time.
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