Fire Alarm 2 Flashcards
(95 cards)
1
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In NFPA-72 an asterisk(*) following a paragraph number indicates? Explanation can be found in Annex A
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2
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*24 hrs to respond to a trouble
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3
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*8 hrs can have an impairment (can have only 1 at a time)
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4
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*200 seconds automatic initiating devices or open or fault. open/close start/restore
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5
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*90 seconds the HV fan has to come on
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6
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*Fan operation at desired state 60 sec. Completion of damper travel 75 seconds
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7
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*75 ft above the lowest level the fie dept can reach is a highrise
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8
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*1 smoke per 900 sq ft 21’ radius-42 in between 30 sq ft
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9
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*A pull station needs to be within 5 ft of an exit.
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10
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*50% of a FA system has to be working= survivability
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11
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- Different ceiling types start on pg 268
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12
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*50% of stairways need to be pressurized in a highrise
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13
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How long do you have to pass your D license exam after approved? 1 Year
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14
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When does a D licence expire? July 31
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15
Q
75 hrs hrs of school are required for a C license?
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16
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21 hours hrs needed to renew you D lic every 3 years
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17
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*10 Days Board know of change of address 16.02 237 CMR
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18
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Which FA circuit is most reliable Class A operates in opens/faults
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19
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open grounds result in a trouble signal
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20
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ADA -Annex J
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21
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Splices in cable trays shall be Accessible
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22
Q
FA equip shall can perform at ambient? 32 deg / max 120 deg.
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23
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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
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24
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Property protection is primary purpose of dwelling FA equip
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25
equipment connected to a FA circuit must be listed? For the purpose for which it is used
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26
Items found in a protected space often referred to as? Fuels
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27
A high rise is more than 75 feet from the lowest level the fire dept access to the highest level of occupancy?
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28
In a building fire emergency voice/alarm communication sys are usually found in? High rise buildings
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29
Alarm notification appliances must be tested ? Annually
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30
All FA systems require inspections, testing, maintenance programs. Per manufactures standards.
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31
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
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32
Responsible for the testing.? The owner
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33
How long must system design and function documents be kept for including alterations? Shall be maintained for the life of the system
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34
Record of Completion documentation be updated to reflect additions to the FA system 7.7.1.5
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35
A piece of equipment that requires semiannual inspections - Between 4 to 8 months from the last inspection
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36
Maint, inspec and testing records for FA sys must be kept for. Until the next test and for 1 year after.
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37
It Is required that you must provide the AHJ the Floor plan layout of all the devices and control equip on a FA sys 7.2.1
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38
Prior to the installation or alteration of FA equipment or wiring, what governing authority must be notified? The authority having jurisdiction "AHJ"
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39
When does the NFPA-72 code allow the intermixing of different types of audible appliances within a building? When approved by the AHJ
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40
Remote resetting of a protected premises FA control unit is only approved from ? AHJ
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41
The install of FA system wiring, cables, and alarm equipment shall be in accordance with Both NFPA-70, NFPA-72 and listing or labeling
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42
A system installer as listed in NEFA 72 must be supervised by a “qualified person” ---Installing company trained and tested
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43
Nationally recognized testing labs NRTL____ electrical products to provide a basis for approval by inspectors in the field? Test and List
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44
When installing the FA within the dwelling unit in a apartment building. Is it permitted to actuate the building alarm system? No
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45
Splices or joints in a public FA reporting system conductors shall: be permitted in listed boxes
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46
An auxiliary FA sys which is connected through the municipal FA sys to the fire service comm’s center shall be -Local energy and shunt
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47
FA wiring, disconnect means inside buildings shall be identified by =Red covers or doors, "public fire alarm circuit" markings
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48
to send a trouble signal to the FA control panel interruption due to a bad connection at a device. in order to assure a trouble signal is sent,two and four wire detector connections must employ? Duplicate terminals
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49
Which device when interconnected to a similar device will cause it to actuate ? Multiple station device
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50
When troubleshooting a FA sys what is the best way to start? Test and eliminate large sections
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51
*Plenum. A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system. 100(page 70-40)
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*800.179 (A) Type CMP. Type CMP communications plenum cables shall be listed as being suitable for use in ducts, plenums…
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53
Guards for mechanical protection near possible mechanical damage 17.4.2 pg 72-94
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54
Class 2 wiring is Low Voltage. Class 1 and 3 are high voltage(120v)
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55
All alarms within “location to sound” Shall provide warning
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56
A control module that performs a Emergency Control function must be located within 3 ft of the component controlling that function 21.2.4 pg 72-113
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57
FA signals used to notify building occupants A distinctive three- pulse temporal pattern 18.4.2.1 pg 72-107
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58
coded signal designation for a building supervisory signal from the basement? 3 – 1 tempora 10.12.2 From a SUB basement 3-2
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59
(FPLP) fire protection limited power cables must be installed in a duct used for environmental air
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60
ID are the most visible devices smokes ,heat, flow switch, Pulls
ID(C)s
61
The max loop resistance for an IDC is--specified in the manufactures install instructions 14.4.3.2 pg 72-85
ID(C)s
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IDC and notification appliances circuits monitor the circuits for integrity by? a small current through the circuit
ID(C)s
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Multiple station alarm when actuated and into interconnected to another similar device
ID(C)s
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addressable FA sys control unit monitors ID by periodically polling them
ID(C)s
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18 IDs that can be interconnected on a household FA sys
ID(C)s
66
Smokes in single family shall be replaced every 10 years
Smokes RES
67
single family home you need to have one smoke every 1,200 square feet
Smokes RES
68
An Ionized smoke is required to have the means to silence. If it is installed within 20 ft of a residential kitchen
Smokes RES
69
Smoke within 20ft of kitchens are required to be photo electric
Smokes RES
70
In a 2-bed ranch house with a basement youll need 4 smokes 1 in each bedroom, 1 in general area outside the bedrooms and 1 in the basement
Smokes RES
71
In a residential building , a high ceiling with a slope greater than 1 foot per 8 feet must have a smoke on the high side of the room
Smokes RES
72
the maximum between smoke alarms in dwellings? 30 feet
Smokes RES
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* a single zone 22,500 square feet
Smokes COM
74
Smokes in other than one and two family dwellings shall be tested using which of the following methods? According to manufactures instructions
Smokes COM
75
Smokes in other than one and two family dwellings shall be tested in place to ensure system smoke entry into the sensing chamber using Smoke or listed aerosol
Smokes COM
76
Smoke alarms or detectors in basement must be mounted? On the basement ceiling near the stairs
Smokes COM
77
*what is the minimum number of smokes required in smoke alarm system? 1
Smokes COM
78
Smoke detectors installed Must be spaced as for a separate room
Smokes COM
79
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
Smokes COM
80
How long do smoke detectors stay in service? 10 yrs
Smokes COM
81
Fixed temperature detectors have to be removed and sent out for testing after 15 yrs 2 per 100
Smokes COM
82
In a premises FA sys, if the exit doors are unlocked by the FA sys when shall the unlocking function occur in relation to the fire alarm system activation ?Prior to or concurrent with
Smokes COM
83
Smoke detectors capable of field adjustment of sensitivity should provide an adjustment range of at least 6% per foot obscuration.
Smokes COM
84
Unless designed and listed for the expected conditions, smoke detectors shall not be installed if any of the following ambient conditions exist: 17.7.1.8 pg 72-97 1. temperature below 32⁰F (0⁰C ) 2 above 100⁰F 38⁰C 3. relative humidity above 93 percent ) 4. air velocity greater than 300ft/min (1.5in/sec)
Smokes COM
85
Smoke/heat is a combination initiation device
Smokes COM
86
Fixed temperature spot type detectors are most suitable for enclosed areas
Smokes COM
87
* Spot-type smoke detectors shall be located on the ceiling or, if on a sidewall, between the ceiling and 12 in. (300 mm) down from the ceiling to the top of the detector 17.7.3.2.1 pg 72-98
Smokes COM
88
smoke and heat detector on a peaked ceiling, you should measure--3ft horizontally from peak in both directions
Smokes COM
89
maximum number of SMOKE alarms that may be interconnected where the interconnecting means is SUPERVISED in dwellings? 42
Smokes COM
90
the number of supervisory device is permitted to be connected to a single initiating device circuit shall not exceed? 20
Smokes COM
91
maximum number of UNMONITORED small alarm devices that can be interconnected is.? 12
Smokes COM
92
*After the second required calibration test, if sensitivity tests indicate that the device has remained within its listed and marked sensitivity range (or 4 percent obscuration light gray smoke, if not marked), the length of time between calibration tests shall be permitted to be extended to a maximum of 5 years. 14.4.4.3.3
Smokes COM
93
*Max coverage of a single smoke --900 sq ft 30' x 30' is 900'
Smokes COM
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Smk Det spacing 1 smoke per room 30x30. 15’off wall . protective coverage 21’ around Draw pic from notes
Smokes COM
95
.7 Rule : If we take 30' and multiply it by 0.7 we arrive at a new spacing for smoke detectors of 21'. This is the reason, NFPA 72 clearly states that for corridors or rooms 10' in width or less, smoke detectors can be located 21.5' feet from the end wall and spaced 41' between detectors.
30’x .7= 21’
10’wide extends to 41’, 15’-39’, 20’-37’, 25’-34’ If we take the manufacturer's recommended spacing of 30' for smoke detectors we can cover 900 square feet since 30' x 30' is 900'. Keep in mind that this is not incorporating the 0.7 rule
Smokes COM
