Download NICET LEVEL 1 IN HIGHWAY CONSTRUCTION and more Quizzes Nursing in PDF only on Docsity!
NICET - FIRE ALARM SYSTEMS
(LEVEL 2) EXAM QUESTIONS AND
ANSWERS
A plate type grounding electrode must be at least_______below the surface of the earth. - ANSWER- 30 in A smoke detector must not be installed in elevator hoistways except if_______. A. the elevator machine room is at the top of the hoistway B. the hoistway is less than 30' in length C. the hoistway has sprinkler coverage D. installed to activate elevator hoistway smoke relief equipment E. B & D are correct F. C & D are correct - ANSWER-F Exposed optical fibers must be supported by the_______. - ANSWER-Building Structure A smoke detector must be marked with their nominal production_______and tolerance. - ANSWER- Sensitivity Consider a fire alarm system in a Use Group A. According to the IBC, activating the fire alarm in a Use Group A occupancy with an occupant load of _____ or more shall initiate a signal using an emergency voice/alarm communication system? - ANSWER- 1000 Which of the following is true for automatic drift compensation of detectors? A. The FACP must identify the affected detector when the compensation limit is surpassed by the detector. B. The affected detector must show the limit has been reached at the detector. C. This feature is only allowed for household systems. A & B - ANSWER-A Alarm signals must not be lost, interrupted, or delayed by more than_______when primary power failure occurs. - ANSWER- 10 seconds What is the maximum time allowed between the activation of an initiating device in alarm condition, to the time the alarm condition is displayed and recorded at the supervising station? - ANSWER- 90 seconds In both exposed and concealed areas, where a cable is installed through bored holes in the joists, rafters, or wood members; holes must be drilled so that the edge of the hole is no closer than____from the nearest edge. - ANSWER- 1 1/4" Capable of being reached for operation, renewal, and inspection is known as what? A. accessible (regarding equipment) B. accessible (regarding wiring methods) C. accessible (regarding termination) D. accessible (regarding FACP) - ANSWER-A After acceptance testing, what type of drawings are required to be presented to the building owner? A. As Built Drawings
B. Contract Drawings C. Point-To-Point Diagrams D. Manufacturer's Drawings - ANSWER-A According to the IBC, strobe lights/appliances shall not be required in ________________? - ANSWER-Elevator Cars According to the IBC, which of the following fire alarm systems are required in a Group F occupancy? A. a manual and automatic fire alarm system with occupant notification. B. an automatic fire alarm system without occupant notification C. a manual fire alarm system without occupant notification. D. a manual fire alarm system with occupant notification - ANSWER-D Conductorrs of shunt circuits shall not be smaller than ______________ and shall be ____________. A. 14 AWG / Insulated B. 18 AWG / Insulated C. 14 AWG / Covered D. 18 AWG / Covered - ANSWER- 14 AWG A bar chart intended for displaying simple events plotted against time or dollars. - ANSWER-Gantt Chart In Project Management, the Arrow Diagram Method is also known as the _________? - ANSWER- Critical Path Method According to the IBC, a manual fire alarm system is NOT required to be installed in Group A occupancies where ___________ A. the occupant load due to the assembly occupancy is less than 300 B. the building is equipped with an automatic fire alarm system C. The occupant load due to the assembly occupancy is 300 or more D. None of the above. - ANSWER-A A fire alarm technician updated the programming of the fire alarm control unit. The changes did not affect any initiating devices connected to theh system. Is the technician responsible, as per NFPA 72, for testing and correcting any of these (unaffected) initiating devices? If so, what percentage? - ANSWER-Yes, 10% In a dry-pipe sprinkler system, the off-normal signal initiation requirement shall signal when the pressure increases or decreases by _____________ psi - ANSWER- 10 psi According to the NFPA 72, a corridor adheres to the requirements of a room when the corridor is wider than __________ feet - ANSWER- 20 feet In Group I-1 occupancies, an automatic smoke detection system shall be installed in __________________ (choose 2) A. Corridors B. Sleeping Units C. Kitchens D. Waiting Areas - ANSWER-A and D When an occupancy with an atrium connects more than ______________ stories, a fire alarm system shall be installed with smoke detection throughout the building. - ANSWER- 2 stories
- ANSWER-Fire Alarm Control Panel True or false: A corridor that is 20 feet in width adheres to the spacing requirements of a room. - ANSWER-False
D. Alarm Signals - ANSWER-C In terms of sprinkler, waterflow alarm-initiating devices, activation of the initiating device shall occur within _____________ seconds. - ANSWER- 90 seconds Which type of detector is most suitable for protecting large open areas like a gym? - ANSWER- Projected Beam If you are to install a new messenger supported wire in an area, you may do all of the following except? A. Use a factory-assembled aerial cable. B. Use a messenger wire with field installed lashing material for conductor support. C. Use a messenger wire with wings and saddles for conductor support. D. Attach to a preexisting messenger wire if it is carrying the same type system cabling. - ANSWER-D According to NFPA 72, a household fire alarm system is required which of the following? A. Smoke detection circuits shall not be required to lock in. B. Reset switches must latch. C. NAC's are not required to be monitored. D. All of the above. - ANSWER-A Visual appliances are required in an area if the average ambient sound level is greater than a level of what? - ANSWER- 105 dBa Equipment must be engineered and tested to operate properly at_______of its nameplate voltage. - ANSWER-85% What is the maximum number of bend (in degrees) permitted in RMC between outlet boxes? - ANSWER- 360 degrees Residential fire alarm systems must have a backup battery capable of operating the system for ________ hours in a normal condition and __________ min. in alarm condition. - ANSWER-24/ A(n)_______ signal will be received when the system or any portion of the system at the protected premises is placed in a bypass or test mode. - ANSWER-Trouble Unless specifically defined by the code, over current protection shall not exceed____amps for a 12 AWG copper conductor. - ANSWER- 20 If you are required to install a visual notification appliance in an area that has a ceiling height of 6'6″, what is the maximum distance the device can be mounted from the ceiling? - ANSWER-6" The secondary power supply shall automatically provide power to the protected premises fire alarm system within_______, whenever the primary power supply fails to provide the minimum voltage required for proper operation. - ANSWER- 10 seconds Cable that is designated as direct buried cable is not required to be more than_______below ground. (0v to 600v) - ANSWER-24" What is the minimum allowable AWG for a class 3 conductor? - ANSWER- 18 AWG What type of fire alarm system requires the FA contractor to attach a label documenting the type of service to the FACP? Proprietary System Local System Remote Station Central Station - ANSWER-Central Station
Some smoke detectors have a provision for a field adjustment of sensitivity and they are required to have an adjustment range of not less than_______ per foot of obscuration. - ANSWER-0.6% What is the maximum size grounding conductor allowed for a CATV installation? - ANSWER- 6 AWG During the testing of manual fire alarm boxes, you observe the manual fire alarm boxes have protective covers that emit a local alarm signal. According to the IBC, protective covers with local alarm signaling requires _____? AHJ approval Opaque covers UL 864 listing Protection from unauthorized use - ANSWER-AHJ approval Which of the following terms best describes the following phrase; an electrical circuit that is used to energize signaling equipment.? remote control circuit signaling circuit lead circuit primary circuit - ANSWER-signaling circuit What is the minimum mounting height for an audible notification appliance? - ANSWER-90" Which of the following is not an initiating device? Electromechanical releasing device McCulloh transmitter Water level switch Smoke detector - ANSWER-McCulloh transmitter A Group B Ambulatory care facility shall be provided with an electronically supervised _____ installed within the ambulatory care facility and in public use areas outside tenant spaces? Automatic smoke detection system Automatic sprinkler system Manual fire alarm system Notification appliances - ANSWER-Automatic Smoke Detection System Which of the following descriptions would NOT be considered a qualified system designer? A. A person who is certified by a state authority. B. A person who is certified by an internationally recognized certification organization. C. A person who is factory trained and certified for fire alarm system design. D. A person or organization who is approved by the AHJ to design fire alarm systems. - ANSWER-B If you try to drive a grounding rod and you hit solid rock, you are permitted to bury the grounding rod in a trench that is at LEAST____deep. - ANSWER-30" When a raceway is run from the interior to the exterior of a building, the raceway shall_______. A. be rigid metal conduit (RMC) B. be rigid polyvinyl chloride conduit (PVC) C. be sealed with an approved material D. have an explosion-proof seal - ANSWER-C
For Groups A-1, A-2, A-3 an automatic sprinkler system is required if occupancy is greater than _____________ people - ANSWER- 300 For Groups S-1, sprinklers are required in areas greater than __________ sq ft - ANSWER-12,000 sq ft For Groups S-1 that houses commercial motor vehicles sprinklers are required in areas greater than ________________ sq ft - ANSWER-5,000 sq ft According to the IBC, the location and accessibility of the fire command center shall be approved by the _________________ - ANSWER-Fire Chief When an evacuation message is to be issued, what shall precede and follow the message? - ANSWER- A tone with a MINIMUM of 2 cycles Sleeping areas shall have a sound level of at least ____ dB above the average ambient sound level. - ANSWER- 15 dB Lights used for fire alarm signaling only or to signal the intent for complete evacuation shall be _________ or ___________ - ANSWER-Clear or Nominal White Visual Notification Devices shall not exceed ___________ cd? - ANSWER-1,000 cd All software and firmware that pertain to the FACP of a protected premises fire alarm system shall be protected from ________________. A. unauthorized access B. inadvertent changes C. unauthorized changes D. none of the above - ANSWER-C Smoke detectors used to recall the elevator for fire fighters' service shall ____________ a. be connected to the building fire alarm system b. be rated for elevator recall service c. be approved by the AHJ d. non of the above - ANSWER-A According to the IBC, Group I-3 occupancies shall be equipped with a manual fire alarm system and automatic smoke detection system installed for ______________ ________________ - ANSWER- Alerting Staff Emergency control function interface devices shall be located within _____________ of the element controlling the emergency control function. - ANSWER- 3 ft Where fire pumps are required to be monitored and a building fire alarm system is installed, a pump running signal shall be permitted to be a __________________ or _________________ signal. - ANSWER-Supervisory or Alarm Where fire pumps are required to be monitored and a building fire alarm system is installed, signals other than pump running shall be supervisory signals. - ANSWER-Supervisory A fire alarm system component with discrete identification that can have its status individually identified or thtat is used to individually control other functions is the definition of a A. Channel B. Detector C. Control Unit D. Addressable Device - ANSWER-D
The secondary power supply shall automatically provide power to the protected premises system within ________________ seconds - ANSWER- 10 seconds The secondary power supply shall automatically provide power to the supervising station facility and equipment within _______________ seconds - ANSWER- 60 seconds How often shall CO detectors be tested? - ANSWER-Annually According to teh NEC, The non-power limited fire alarm circuit disconnect shall be permitted to be a. secured in the "on" position b. sized as per the NFPA 72 requirements c. be rated for 240 volts d. none of the above - ANSWER-A The International Mechanical Code requires a duct smoke detector in the return for units over ________ cfm - ANSWER- 2000 cfm The International Mechanical Code (IMC) requires a duct smoke detector in the supply for units over __________ cfm - ANSWER- 15000 Digital alarm communicator transmitters (DACT) which use call forwarding to the DACR shall be tested with what frequency? - ANSWER- 4 hours NPLFA cables shall be insulated to __________ v - ANSWER-600v PLFA cables shall be insulated to _______ v - ANSWER-300v For sprinkler systems what type of signal is a fire pump running? a. alarm b. supervisory c. trouble d. A and B - ANSWER-d A positive alarm sequence requires the approval of the ___________. - ANSWER-AHJ How often shall a remote annunciator used at the main entrance of a low-rise residential apartment building be inspected? - ANSWER-Semniannually According to NFPA 72, the off-normal signal of a tamper switch control valve used in sprinkler piping that is required for pressure-actuated water flow alarm switch, shall not be restored at any valve position except _____________? - ANSWER-Normal When installing a heat-sensing fire detector on the bottom of a beam, the beam must be less than _____________ inches in depth and _____________ feet on center? - ANSWER- 12 in; 8 ft Where a door is released to provide a 2-hour fire rating directly from the smoke detector, the detector shall be ______________ a. mounted as close as possible to the door being released b. listed for door releasing service c. identified for door releasing service d. of the photoelectric type only - ANSWER-b According to NFPA, smoke detectors installed in the ducts of HVAC systems shall initiate:
According to teh IBC, strobe lights/appliances shall not be required in ______________? - ANSWER- Elevator cars Communications wires (Coaxial cables) shall have a voltage rating of not less than _________ volts - ANSWER-300v What is the minimum workspace width in front of electrical equipment (This allows enough room for a person to face the equipment without having to turn the upper body to work on the equipment)? - ANSWER- 30 in If a heat detector with a listed spacing of 50 feet is to be mounted on an 18 ′ high ceiling, what is its maximum allowable spacing? - ANSWER-35.5 ft What is the maximum distance a heat detector can be from any point on a smooth ceiling? - ANSWER- 0.7 times the listed spacing The branch circuit supplying the fire alarm equipment shall _____________ a. supply no other loads b. be size 12 AWG copper or aluminum c. be rated for 240 volts d. none of the above - ANSWER-A A circuit contains 4 resistors connected in series. When 12VDC are applied to the circuit, 1 amp of current are drawn. What is the total resistance of the circuit? - ANSWER- 12 Ohms Extension cords shall not be____________ A. used unless approved by the AHJ B. a color where identification will be problematic C. rated over 600V D. fastened with staples, hung from nails, or suspended by wire - ANSWER-D Storage batteries shall be located so that the equipment, including overcurrent devices, is not
a. made inaccessible by the closer of the cover b. be located separate from the fire alarm control panel c. adversely affected by battery gases d. hidden from view - ANSWER-C Grounding electrodes of pipe or conduit shall not be smaller than ___________ inch. - ANSWER-3/4" At least one lifesaving skiff shall be immediately available at locations where employees are working over or adjacent to ________________ - ANSWER-Water The unit of measurement for electrical current is ________________ - ANSWER-Amps Carbon monoxide signals shall take precedence over _____________ - ANSWER-Trouble and Supervisory signals Lifelines shall be secured above the point of operation to an anchorage or structural member capable of supporting a minimum dead weight of _______________ pounds - ANSWER-5,400 lbs Smoking shall be prohibited at or in the vicinity of operations which constitute a fire hazard, and shall be conspicuously posted: ___________________ a. "No Smoking" b. "No Smoking or Open Flame."
c. "No Open Flames" d. "No Smoking Allowed" - ANSWER-B Circuit Integrity (CI) cables shall only be permitted to be installed _________________ a. for portable fire alarm systems only b. in ducts and plenums c. if acceptable by the AHJ d. in a raceway where specifically listed and marked as part of an electrical circuit protective system - ANSWER-D When an addition is made to a fire alarm system after the initial installation, the addition shall be recorded on a revised version of the original completion documents. The revised record of completion document shall include ___________ a. the revision date b. the company information who made the additions c. the contractor's information which made the additions d. the location of the original document - ANSWER-A The use of electric cords for hoisting or lowering tools shall _______________ a. be permitted b. be used by a certified operator c. not be permitted d. none of the above - ANSWER-C The record of completion documentation shall be completed by the _________________ a. contractor who installed the system b. the owner of the system c. the AHJ d. the monitoring company servicing the system - ANSWER-A A circuit is powered by a 24VDC battery. The resistance of the circuit is 24 Ohms. What is the current flow? - ANSWER- 1 amp Type _____________ power-limited fire alarm cable shall be listed as being suitable for general- purpose fire alarm use, with the exception of risers, ducts, plenums, and other spaces used for environmental air, and shall also be listed as being resistant to the spread of fire. - ANSWER-FPL Portable cord and plug connected equipment and flexible cord sets (extension cords) shall be visually inspected _______________ for external defects and for evidence of possible internal damage. a. before the end of the shift b. monthly c. every 24 hours d. before use on any shift - ANSWER-D Who shall coordinate system testing to prevent interruption of critical building systems or equipment before testing of the fire alarm system? a. The owner or the owner's designated representative b. service personnel c. a and b d. none of the above - ANSWER-C Personnel programming a system shall be certified by _____________ a. the system owner b. the monitoring and maintenance company c. the NFPA d. the system manufacturer - ANSWER-D
c. below 25% d. below the manufacturer's recommendations - ANSWER-D Stairs shall be installed between ____________ and ___________ deg from horizontal? - ANSWER- 30 and 50 deg For a question such as: "What is the max amount of 10 AWG THHN conductors that can be installed in 1" EMT?" What area of the NEC would you look? - ANSWER-Annex C The minimum branch-circuit conductor size shall have an allowable ampacity not less than the maximum load to be served after the application of _____________ a. the maximum load b. all de-rating values c. 125% of the load d. any adjustment or correction factors - ANSWER-D Where subject to mechanical damage, an initiating device shall ___________________ a. not be installed b. be a smoke or heat detector c. be accessible d. be protected - ANSWER-D All doors that are required to be unlocked by the fire alarm system shall remain unlocked until
a. the fire alarm condition is manually reset b. the fire alarm system is silenced c. the fire department arrives d. all occupants are evacuated from the premises - ANSWER-A The __________________________ shall be synchronized within a notification zone - ANSWER- Standard Evacuation Signal An aerial lift truck shall not be moved when the boom is elevated in a working position with
a. the wheels unlocked b. excess load c. men in the basket d. none of the above - ANSWER-C Temporary lights shall not be suspended by their electric cords unless ________________________ a. cords and lights are designed for this means of suspension b. supervised c. the installation is deemed safe d. none of the above - ANSWER-A Each low-power radio transmitter/transceiver shall automatically repeat alarm transmissions not exceeding _______________ seconds until the initiating device is returned to its non-alarm condition.
- ANSWER- 60 seconds The secondary power supply capacity for supervising station facilities and equipment shall be capable of supporting operations for a minimum of _________________ - ANSWER- 24 hours In which type of electrical circuit do loads have to the same amount of voltage drop given that their resistance values are different?
a. parallel b. series - ANSWER-A The accessible portion of abandoned fire alarm cables shall be removed. Where cables are identified for future use with a tag, the tag shall be __________ a. painted blue b. clearly labeled c. of sufficient durability to withstand the environment involved d. permanent - ANSWER-C Spaces beneath raised floors and above suspended ceilings shall be treated as ___________________ for smoke detector spacing purposes a. separate rooms b. separate zones c. fire rated enclosures d. fire zones - ANSWER-A Portable electric lighting used in wet and/or other conductive locations, as for example, drums, tanks, and vessels, shall be operated at ___________ a. 50 volts b. 120 volts or less c. 24 volts or less d. 12 volts or less - ANSWER-D Fire alarm circuits shall be identified at terminal and junction locations in a manner that helps to
a. identify it b. prevent unintentional signals on fire alarm system circuit(s) during testing and servicing of other systems c. prevent other trades from tampering with fire alarm circuits d. all of the above - ANSWER-B The pressure supervisory signal-initiating device for the drypipe sprinkler system indicates both high- and low pressure conditions. The off-normal signal shall be initiated when the pressure increases or decreases by _____________ psi - ANSWER- 10 psi Software and firmware within the fire alarm control system that interfaces to other required software or firmware shall be _________________ a. approved b. functionally compatible c. upgraded immediately d. locked - ANSWER-B An overcurrent protection device of suitable-carrying capacity that is capable of interrupting the maximum short-circuit current to which it can be subject shall be provided in each
a. branch circuit conductor b. ungrounded conductor c. grounded conductor d. fire alarm circuit conductor - ANSWER-B What is a permitted method of connection of grounding and bonding equipment? A. Wire nut B. Connections that are part of a listed assembly C. Pipe clamp D. Gel filled bonding fasteners - ANSWER-B
Fire alarm equipment must be designed and tested so that it is capable of performing at_______ nameplate input voltage. 80% 75% 110% 115% - ANSWER-110%
- Abandoned fiber optic cables must be removed unless? A. There is a service coil B. Cable has connectors attached C. Tagged for future D. Labeled: Do Not Remove - ANSWER-C According to the IBC, activation of a duct smoke detector shall initiate a visible and audible ______ signal at a constantly attended location? Alarm Trouble Supervisory HVAC - ANSWER-Supervisory Continuous load is a load on a circuit where the maximum current is expected to be continuous for a minimum of_______ A. two hours or more B. three hours or more C. four hours or more D. six hours or more - ANSWER-B What size copper bonding jumper must he connected between the communications grounding electrode and power grounding electrode system? 12 AWG 10 AWG 8 AWG 6 AWG - ANSWER- 6 AWG Initiating, notification, and signaling line circuits will be designated by_______, depending upon the circuit's capability to continue to operate during a specified fault condition. Type Class Style Design - ANSWER-Class Smoke alarms and smoke detectors are designed to detect abnormal quantities of smoke or fire signatures. They must operate in normal environmental conditions and comply which applicable standard? A. ANSI/UL 426 B. ANSI/UL 268 C. ANSI/UL 391 D. ANSI/UL 425 - ANSWER-B The interior of enclosures or raceways installed underground shall be considered to be a_______. wet location damp location moist location dry location - ANSWER-Wet location Fire alarm systems are required to be installed, tested, and maintained per the_______.
A. Authority Having Jurisdiction B. Engineered Drawings C. Building Owner D. Manufacturer's Instructions - ANSWER-D What type of smoke detector would work the best in areas with higher temperature, higher air velocity, or humid conditions? Spot type smoke detector Ionization detector Beam detector Air sampling - ANSWER-Air Sampling In the event of a power failure, legally how long is standby power required to be available? 60 seconds 90 seconds 10 minutes 24 hours - ANSWER- 60 seconds What term best describes the following phrase; on or attached to the surface or behind access panels that are meant to allow access. exposed uncover accessible concealed - ANSWER-Exposed When a metal wireway contains splices and taps, the conductors, splices and taps shall not fill the wireway to more than____of its area at that point. 20% 30% 40% 75% - ANSWER-75% If more than one electrode is used, each electrode of the grounding system must not be less than_______from any other electrode of another grounding system. 2 feet 4 feet 6 feet 10 feet - ANSWER- 6 feet Which of the following most correctly identifies where the signage is required on piping and fittings for an air-sampling smoke detection system? A. At an interval no greater than 20 ft. B. On each side of wall and floor penetrations. C. At every change of direction or branches in the piping. D. At changes in direction or branches of piping and not greater than every 20ft. - ANSWER-D Dilated pupils are a symptom of: Heat exhaustion Heat stroke Both A & B None of the above - ANSWER-Heat Exhaustion
14 AWG - ANSWER- 10
Additional feeder circuit wiring requirements apply to emergency systems that are installed in assembly occupancies designated for not less than 1000 people. Which of the following is a requirement? A. Installed in an area that is fully protected by an automatic suppression system. B. Must be protected by a thermal barrier listed for components of electrical systems. C. Must be protected by a listed, fire rated assembly with a fire rating of 2 hour at a minimum. D. Must be installed in at least 2" of concrete. E. All of the above F. None of the above - ANSWER-E Which of the following is an unacceptable method for connecting grounding conductors and bonding jumpers? Exothermic weld Endothermic weld Pressure connectors if listed. Clamps if listed. - ANSWER-Endothermic Weld During the construction phase of a single-floor Group B building with an occupant load of 300, the owner informs you that part of the building will now be used for an ambulatory care facility. The building is not sprinklered. What changes will have to be made to the fire alarm system to accommodate the change? (Select Two) a. Add a manual fire alarm system b. Add smoke detection in public corridors and public use areas c. Add an emergency voice/alarm communication system d. No changes are required - ANSWER-a and b Electrical hazards often occur because of_______. A. overloading of the electrical wiring systems B. initial design and installation do not provide for the increase C. usage of electricity D. A and B E. None of these - ANSWER-D When mounting heat detectors on the ceiling they must be located no less than____inches from the sidewall? 4 6 12 36 - ANSWER-4" The installation of flame detectors requires engineering evaluations to determine the spacing and location requirements. Which of the following is not one of those requirements? A. The actual size of the fire that it will detect. B. The sensitivity of the detector itself. C. The absorption of radiant energy from the surrounding atmosphere. D. The makeup of the fuel in the area. E. All of the above are requirements. - ANSWER-E You are using a power tool that has a 3-prong (grounded) plug. The only outlets available are 2-prong (non-grounded). What can be done? A. Remove the ground prong from the power cord. B. Use a 3-wire to 2-wire adapter. C. Either A or B. D. None of the above. Locate a 3-prong plug or use a tool with a 2-prong plug. - ANSWER-D
When installing a protective premise fire alarm systems, the secondary power may consist of which of the following? A. An engine driven generator where a person specifically trained in its operation is on duty at all times. B. Storage batteries dedicated to the system. C. A dedicated branch circuit of an automatic starting engine driven generator only. D. A dedicated branch circuit of an automatic starting engine driven generator and storage batteries dedicated to the system with four hours of capacity. E. Both B and D - ANSWER-E Which of the following is the reason given by the code for all grounded and ungrounded conductors of a common circuit to be installed together in the same metal raceway? To reduce expense To reduce inductive heat To limit voltage drop To prevent EMI on outside circuits - ANSWER-To reduce inductive heat A neutral conductor is a conductor that_______ A. shall be identified only by white-colored insulation B. is intended to carry current under normal conditions C. is not intended to carry current under normal conditions D. shall be identified by green-colored insulation only - ANSWER-B When installing electrical nonmetallic tubing, it must be securely fastened at distances not exceeding? 10 feet 6 feet 4 feet 3 feet - ANSWER- 3 feet Consider a Group R-2 Occupancy. The IBC states that photoelectric smoke alarms shall not be installed less than ______ feet horizontally from a permanently installed cooking appliance? 6 10 15 21 - ANSWER- 6 feet Consider a Group R-2 Occupancy. The IBC states that ionization smoke alarms shall not be installed less than ______ feet horizontally from a permanently installed cooking appliance? 6 10 15 21 - ANSWER- 10 feet What is the minimum required separation between underground radio and television conductors and power or Class I circuit conductors? 8 inches 12 inches 16 inches 24 inches - ANSWER- 12 inches
