Fire Alarm Exam Questions and Complete Solutions

Fire Alarm Exam Questions and Complete Solutions May indicate actuation of a duct smoke detector -  Supervisory Specifications are an opportunity for the designer to ? -  add requirements for site-specific fire protection goals Incorrect add requirements for the type of equipment used Incorrect add requirements of the owner Which of the following are the three primary fire protection elements for providing fire protection in a building? -  Containment Detection Suppression What are considered as primary functions of a fire alarm system? -  I. Actuation of emergency control functions II. Building system management III. Early detection of fires IV. Notification of the fire department V. Occupant notification Fusible link technology was first used for ? . -  heat detectors Single-station smoke alarms for dwellings are only used for ? . -  life safety What type of detection was developed to protect large open areas? -  Projected beam smoke detectors Central, Proprietary, and Remote are all examples of ? systems. -  supervising station Supervising stations that only monitor property owned by the supervising station operator are called ? -  proprietary supervising stations An in-building fire emergency voice/alarm communications system is usually found in a ? .EVACS -  high-rise building The primary purpose of dwelling fire warning equipment or systems is ? -  life safety A(n) ? usually provides signal information in a floor plan format -  graphic annunciator A fire alarm control unit performs which of the following functions? -  Provides graphical user interface Incorrect Provides monitoring of circuits Incorrect Provides power to initiating devices Incorrect An addressable fire alarm system control unit monitors the status of initiating devices ? . -  by periodically polling the device Which type of sprinkler is most commonly used to protect buildings? -  Wet-pipe sprinklers What are considered emergency safety control function? -  Door unlocking Incorrect Elevator recall Incorrect Elevator shutdown A ? system usually requires the actuation of ? detector(s) to open the charging valve, which floods the sprinkler piping in the protected space. -  pre-action / 2 what are the types of notification appliances are frequently used to alert occupants? -  Horns Speakers Strobes Which circuit type is addressable? -  SLC Computer rooms are sometimes protected by ? . -  gaseous suppression systems Which of the following types of circuits will require an EOL? -  IDC The safety system in the U.S. is comprised of which of the following? -  Product standards, codes, standards, and enforcement Which of the following is considered an authority having jurisdiction for fire alarm systems? -  Electrical inspector Fire marshal Insurance interest Output Circuit -  NAC Conventional Zone Type Circuit -  IDC Addressable Type Circuit -  SLC Indicates a fault on wiring, power supply of communications -  Trouble Indicates a life threatening (emergency) condition -  Alarm Indicates an impaired or off-normal suppression system -  Supervisory Fire alarm systems produce which of the following signals? -  Alarm Supervisory Trouble Duct smoke detectors are sometimes permitted to cause a(n) ? signal in place of an alarm signal. -  Supervisory Wiring between enclosures is not required to be monitored for integrity if the enclosures are less than ? apart and the wiring is ? . -  20' / installed in conduit Which are types of fire alarm circuits? -  NAC, IDC, SLC Initiating device circuits and notification appliance circuits monitor for integrity by ? . -  a small current through the circuit Signaling line circuits monitor for integrity by ? -  interrogating field devices Notification appliances commonly use a(n) ? to prevent monitoring current to pass through the notification appliance circuitry. -  blocking diode Which circuit class is considered as "fail-safe"? -  Class D Conductors returning to the control unit from the last field device on the circuit might indicate a ? . -  a. Class A circuit secondary power supplies must supply power to protected-premises fire alarm systems for a minimum of ? . -  24 hours of standby followed by 5 minutes of alarm Secondary power supplies must supply power to an in-building fire emergency voice/alarm communications fire alarm system for a minimum of ? . -  24 hours of standby followed by 15 minutes of alarm Where an engine-driven generator is used to provide secondary power, a minimum of ? hours of batteries are required. -  4 The disconnecting means (branch circuit) for the primary power of a fire alarm system must be ? in color. -  red the following are an examples of an installer who is "qualified and experienced," under the requirements of NFPA 72? -  Certified by state or local authority IMSA certified NICET certified The Code requires the maximum normal operating temperature limits for most fire alarm equipment to be between ? . -  32°F and 120°F Fire alarm control equipment requires a smoke detector for protection when the controls are ? . -  located in an area that is not continuously occupied Which documentation must be provided to the authority having jurisdiction at the completion of a fire alarm installation? -  Record of completion Which circuits not required to be monitored for integrity? -  . Class E Upon detection of a trouble condition, fire alarm system controls must initiate a trouble signal within ? . -  200 seconds Ethernet/Network Circuit is what class of wire? -  Class N Fail safe capability is what class of wire? -  Class D Not monitored for integrity is what class of wire? -  Class E Requires a redundant pathway and must operate beyond an open, short circuit, and ground fault is what class of wire? -  Class X Only requires a redundant pathway from the last device to the fire alarm controls is what class of wire? -  Class A What devices is used to directly detect flames? -  Radiant energy-sensing fire detector Ionization-type smoke detectors use ? as a means of detecting smoke particles. -  Americium 241 Smoke detectors that detect smoke by reflecting light from smoke particles onto a sensor are called ? smoke detectors. -  light-scattering The most appropriate type of detection for a smoldering fire is a(n) ? . -  photoelectric-type smoke detector Ionization-type smoke detectors are best suited to detect smoke particles having a size ? in diameter. -  . less than one micron A smoke detector that has a laser particle counter is best suited for ? . -  clean rooms Which type of smoke detector works best in large open areas? -  Projected beam-type Rate-of-rise heat detectors usually operate when the temperature rise is ? per minute. -  . 12-15° The time difference between the ceiling temperature and the sensing element reaching the same temperature is called ? . -  thermal lag Total coverage is ? . Select one: -  defined by NFPA 72 but required by building codes Wall-mounted spot-type heat detectors are installed so that the top of the detector is ? from the ceiling. -  4-12" Ceiling-mounted spot-type heat detectors are installed so that the edge of the detector is at least ? from the wall. -  4" Heat detectors should be selected to operate at least ? above the maximum expected ambient temperature in the protected space. -  20°F Waterflow switches are permitted to have a time delay, or retard, up to ? -  90 seconds NFPA 72 does not permit smoke detector spacing to exceed a nominal ? on smooth and level ceilings. -  30' Heat detectors located on a smooth ceiling that is 19 feet in height must be reduced by ? of their listed spacing. -  64% Valve supervisory initiating devices must initiate a supervisory signal within ? revolution(s) of the hand wheel, or ? of the travel distance of the valve. -  2 / 1/5 Pressure supervisory switches must indicate ? from nominal pressure. -  10 psi Concealed fire detectors more than ? above the finished floor must have a remote indicator. -  10' Mechanical covers or protection for notification appliances may ? -  reduce the effectiveness of the appliance require derating of the appliance Incorrect require reduced spacing of the appliances Sound pressure level (SPL) is always measured using the ? scale. -  A-weighted Visible notification appliances are required when the ambient sound pressure level (SPL) is greater than ? . -  105 dBA The minimum required sound pressure level (SPL) for public mode signaling is the greater of ? above the average ambient or five dB above the maximum SPL lasting a minute or more, using the A-weighted scale (dBA). -  15 dB The minimum required sound pressure level (SPL) for private mode signaling is ? above the average ambient or five dB above the maximum SPL lasting a minute or more, using the A-weighted scale (dBA). -  10 dBA Audible notification appliances must be mounted ? above the finished floor and not less than ? from the ceiling. -  90" / 6" Combination audible/visible notification appliances must be mounted so the entire lens is ? above the finished floor. -  80-96" According to NFPA 72, the lenses of visible notification appliances for non-sleeping areas must be mounted ? above the finished floor. -  80-96" Visible appliances in sleeping areas must be within ? of the pillow. -  . 16' The maximum spacing of visible appliances used in a corridor is ? . -  100' Strobes must be synchronized when there are ? . -  more than two appliances in a room Corridor visible notification appliances must be installed a maximum of ? from each end of the corridor. -  15' A rule of thumb for sound attenuation in an open area is that each time the distance from the appliance is doubled, the signal loses ? . -  6 dB Some fire codes may now require the use of ? instead of firefighters' telephones (In-Building, Wired Two-Way Communications Systems). -  DAS( Which system is used to alert and inform occupants of a premises, campus, or community? -  MNS(Mass notification System Non-power-limited circuits operate with voltages up to ? -  600 V Generally speaking, power-limited fire alarm circuits operate at ? . -  less than 100 VA What cable type is suitable for two hours of direct attack by fire? -  FPLP-CI Fire alarm circuit survivability is required for ? . -  partial evacuation or relocation Power-limited circuits may be wired using ? . -  Chapter 3 wiring methods non-power-limited wiring methods power-limited wiring methods Where non-power-limited wiring is installed exposed, it must be mechanically protected within ? of the finished floor. -  7' A firestopping classification having a minimum F rating of ? must be used on a two-hour rated firewall to resist the passage of flames. -  120 A firestopping material that expands when heated is referred to as ? . -  intumescent A cable tray is considered as a ? penetration. -  dynamic Which of the following documents can assist in determining if an assembly is two-hour rated? -  UL Fire Resistance Directory survivability level. Conductors in metal raceways and fully sprinklered building, per NFPA 13 -  Level 1 survivability level No required protection -  Level 0 survivability level. Two-hour protection of circuits -  Level 2 survivability level. Two hour protection of circuits and fully sprinklered building, per NFPA 13 -  Level 3 Where run vertically, Annex A of NFPA 72 recommends a separation of one foot for the outgoing and return conductors of ? circuits. -  Class A, X Combination systems utilize ? . -  a single control unit that performs multiple functions Non-fire alarm system components may share fire alarm wiring on a combination system. -  True Direct connection of two or more compatible control units is sometimes referred to as ? communication. -  peer-to-peer A technology that allows fire alarm signals to be sent over a local area network is called ? . -  BACNet Which types of suppression systems are usually supervised by a fire alarm system? -  I. Automatic fire sprinkler systems (wet/dry) II. Dry chemical suppression systems III. Fire pumps IV. Kitchen hoods V. Preaction suppression systems Suppression system controls must be provided with ? to prevent inadvertent tripping during fire alarm testing. -  a physical switch Smoke detectors installed in elevator lobbies for elevator Phase I recall must be installed within ? of the centerline of each elevator car controlled by the detector. -  21' Where the elevator hoistway and machine room are sprinklered, heat detectors with a ? temperature rating and a ? sensitivity rating are required. -  lower / higher Where the elevator hoistway and machine room are sprinklered, heat detectors are required within ? of ? sprinkler. -  24" / each Which signal is not required to be transmitted from an interconnected suppression system control unit to the main fire alarm control unit? -  Guard's tour Duct detectors are usually required on systems with a capacity over ? . -  2,000 cfm According to national codes, what devices must cause Phase I recall? -  . Elevator lobby, machine room, and hoistway smoke detectors Control units which perform suppression system releasing service must be ? . -  connected to the building fire alarm system listed for releasing service Incorrect monitored for alarm, trouble, and supervisory signals The maximum delay (retard) for a waterflow switch is ? -  90 seconds A high-rise is usually defined as a building with an occupiable level more than ? above the lowest level of fire department access. -  75' Systems that require ? of occupants are not required to meet survivability requirements. -  total evacuation Which of the following is an example of a distributed recipient mass notification system (DRMNS)? -  Reverse 9-1-1 Two-way in-building emergency communications systems are also called ? -  firefighter's telephones Emergency communications systems must operate at standby for ? , followed by ? of full operation. -  24 hours / 2 hours Batteries used as secondary power supplies for emergency communications systems must have a minimum safety factor of ? . -  20% n-building fire emergency voice/alarm communications systems are required to have what secondary power supply capacity? -  24 hours standby plus 15 minutes of all connected load Outgoing and return conductors of Class A circuits ? be separated by a distance of ? -  should / 1' vertically and 4' horizontally Systems that provide for a partial evacuation or relocation of occupants must be ? . -  survivable Additional survivability requirements exist when the ? -  FCC and the central controls are separated A minimum Speech Transmission Index (STI) of ? is considered as intelligible. -  0.5 A Temporal ? signal is used to signal total evacuation. -  3 Areas defined as requiring intelligibility are called ? . -  ADS Specifications Division ? applies to all other divisions. -  01 A "D" Size drawing is ? . -  22" x 34" Blueprints are developed using the ? process. -  diazo Hidden objects are usually shown by ? lines. -  dashed Match lines are usually indicated by which line type? -  Zigzag Object lines are usually indicated by which line type? -  Object borderlines are usually indicated by which line type? -  heavy dimension lines are usually indicated by which line type? -  lighter CIS Common Intelligibility Scale -  .70 score