SP-FA/LV
Who is responsible for the inspection, testing, and maintenance of a fire alarm system? a. county inspector's office b. bound electrical contractor c. property or building owner d. tenants
c
In the diagram shown above: The total load that conductor A is supplying in the feeder is: A. 208 amps B. 216 amps C. 260 amps D. 270 amps
A
Motor overload protection devices are intended to protect: I. motors due to overload II. Motors with short circuits or ground faults A. I only B. II only C. Both I and II D. Neither I nor II
A
The maximum allowable ampacity of size 18 AWG conductors suitable for a fire protection system is: A. 6 amps B. 8 amps C. 14 amps D. 18 amps
A
The minimum size liquid tight flexible metal conduit is: A. 3/8 in B. 1/2 in C. 3/4 in D. 1 in
A
The rating of any one cord-and plug-connected utilization equipment on a 120V, 15-ampere branch-circuit which has only one outlet shall not exceed: A. 12 amps B. 15 amps C. 16 amps D. 20 amps
A
The rating of the branch circuit overcurrent device supplying a low voltage wiring system is fifteen (15) amperes. The minimum allowable size equipment grounding conductor required for this dedicated circuit is: A. 14 AWG copper B. 14 AWG aluminum C. 12 AWG copper D. 10 AWG aluminum
A
The total rating of a cord-and-attachment-plug-connected room air conditioner connected to a 20-ampere branch-circuit that does not employ interlocking circuitry to prevent simultaneous operation of lighting outlets of the same circuit shall not exceed: A. 10 amps B. 15 amps C. 16 amps D. 20 amps
A
What is a circuit or path connecting a subsidiary station(s) to a supervisory station(s) over which signals are carried? A. communications channel B. derived channel C. radio channel D. transmission channel
A
Two #4 THW copper conductors are installed in electrical metallic tubing. What trade sizeof EMT is required for this installation?
1 inch trade size EMT
A junction box contains eight #10 conductors with grounds. What is the minimum required cubic inch capacity for this box?
22.5 cubic inches
What is the allowable ampacity of a 2/0 copper, THW conductor that is instal1ed in free air with an ambient air temperature of 40 degrees C?
233 amperes
In a 3 1/2 inch conduit body, calculate the required length of the straight pullbox when the voltage of theconductors is 120 volts.
28
A double gang box contains three 14/2 conductors with ground, two 14/3 conductors with ground, two receptacles, and cable clamps. What is the minimum required cubic inch capacity of this box?
36 cubic inches
How many #6 THW conductors are permitted to be installed in a one inch trade size of rigid metal conduit?
5 THW #6 conductors are permitted
A 120/140, 3-wire service-drop passing over a residential driveway shall have a minimum height above grade of: A. 10 ft B. 12 ft C. 15 ft D. 18 ft
B
A load is considered to be continuous if the maximum current is expected to continue for: A. 1/2 hour B. 1 hour C. 2 hours D. 3 hours
D
A metal device box contains cable clamps, six - (6) size 14 AWG conductors, and one - (1) single-pole switch. What is the minimum allowable size of the box? A. 12 cu. in B. 13 1/2 cu. in C. 14 1/4 cu. in D. 18 cu. in.
D
An individual 20-ampere rated branch-circuit serves a single receptacle. The rating of the receptacle must not be less that: A. 12 amps B. 15 amps C. 16 amps D. 20 amps
D
Audible signals in a nursing home shall have a sound level of: a. at least 10 dB above the average ambient sound level or 5 dB above the maximum sound lasting 60 seconds, whichever is greatest. b. a. at least 15 dB above the average ambient sound level or 5 dB above the maximum sound level lasting 60 seconds, whichever is greater. c. at least 15 dB above the maximum sound level lasting 60 seconds or greater d. none of the above
a
Non-power limited fire alarm circuit conductors are installed in a raceway. When they are 18 AWG in size, what is their maximum allowable ampacity? a. 6A b. 8A c. 10 A d. 12 A
a
Cartridge fuses shall be plainly marked by printing on the barrel or by a label attached to the barrel of the fuse.This marking shall include all of the following, except: a. the ampere rating of the fuse b. the voltage rating c. the interrupting rating where over 10,000 amperes d. the interrupting rating where equal to 10,000amperes
d
Which of the following is the maximum allowable rating of a permanently connected appliance where the branch-circuit overcurrent device is used as the appliance disconnecting means? A. 1/8 hp. B. 1/4 hp C. 1/2 hp D. 1 hp
A
Which of the following low voltage wiring systems are required to be installed by a licensee of the board? 1) a low voltage wiring system required by the North Carolina state building code 2) a low voltage wiring system where a failure would not cause shock or fire hazard to persons or property a. 1 only b. 2 only c. both 1 and 2 d. neither 1 nor 2
A
Which of the following statements about 120/240V, 3-wire service-entrance conduction for a one-family dwelling is/are correct? I. The service disconnecting means shall have a rating of not less than 100 amperes, 3-wire. II. Service conductors shall be permitted to be connected to the service disconnecting means by connections that depend on solder. A. I only B. II only C. Both and I and II D. Neither I nor II
A
Which of the following statements about the protection of nonmetallic-sheathed cable from physical damage is/are correct? I. when run across the top floor joists in an accessible attic, the cable shall be protected by approved guard strips. II. When passing through a floor, the cable could be enclosed in schedule 40 PVC rigid nonmetallic conduit extending at least 6 in. above the floor A. I only B. II only C. Both I and II D. Neither I nor II
A
A 208V, 50 hp, 30 squirrel-cage motor has a full-load current rating of: A. 130 amps B. 143 amps C. 162 amps D. 195 amps
B
A 240V, 10 branch-circuit will supply an electric furnace that has elements rated at 12 kva and a motor rated at 1.5 kva. Equipment terminations provided at 75 degree celsius and Type THW copper conductors are to be used. What is the minimum allowable size of the branch-circuit conductors? A. 6 AWG B. 4 AWG C. 2 AWG D. 1 AWG
B
An equipment bonding jumper is permitted outside a raceway: A. When not over 5 ft. long B. When not over 6 ft. long C. When not over 8 ft long D. When not over 10ft. long
B
Disregarding all exceptions. All phase conductors and, where used, the grounded conductor and all equipment conductors of an alternating current circuit shall be grouped together when installed in metal raceways as to avoid heating caused by: I. Ampacity II. Induction A. I only B. II only C. Both I and II D. Neither I nor II
B
Excluding photovoltaic power systems, the minimum size of an insulated grounded conductor which is permitted to be marked at its terminations with white, instead of having white or gray insulation is: a. #2 b. #4 c. #6 d. #8
B
In noncombustible walls or ceilings, the front edge of an outlet box may be set back of the finished surface not more than: A. 1/8 in B. 1/4 in C. 1/2 in D. 3/4 in
B
In dwelling units, ground-fault circuit-interrupter protection is required in all of the following locations except: A. Garages B. Outdoors C. Bedrooms D. Bathrooms
C
Overcurrent devices shall not be located: 1. where subject to physical damage 2. in clothes closets A. 1 only B. 2 only C. both 1 and 2 D. neither 1 or 2
C
Surety bonds are three party agreements which guarantee that the work will be completed in accordance with the contract documents and that all construction costs will be paid. All of the following are basic types of bonds EXCEPT: A. statutory bonds B. payment bonds C. insurance bonds D. bid bonds
C
The ampacity of a feeder supplying one-(1) 7 1/2 HP-240 volt direct-current-motor and one-(1) 10 HP-240 volt direct-current motor shall not be less than: A. 56 amps B. 74 amps C. 77 amps D. 84 amps
C
The full-load current of a 240V direct-current 7 1/2 hp motor is: A. 19 amps B. 22 amps C. 29 amps D. 38 amps
C
The maximum length of a flexible cord identified as suitable for the purpose of connecting a built-in dishwasher shall be: A. 2 ft B. 3 ft C. 4 ft D. 5 ft
C
The minimum number of 120V, 15-ampere, 2-wire lighting branch-circuits required for a residence 70 ft. by 30 ft. is: A. 2 B. 3 C. 4 D. 5
C
The total wattage for all lamps supplied by multiwire branch circuit A5, 7 is: A. 480 watts B. 860 watts C. 1340 watts D. 2200 watts
C
Unused cable openings in boxes shall be effectively closed to afford protection substantially equivalent to the wall of the equipment. Where metallic plugs or plates are used with nonmetallic enclosures, how far shall they be recessed from the outer surface of the enclosure. A. 1 inch B. at least 3/4 inch C. at least 1/4 inch D. at least 1/8 inch
C
What is the minimum required ampacity of the branch circuit conductors supplying a three phase, 7.5 hp, 230 volt, squirrel cage motor with a marked service factor of 1.15? A. 22 amperes B. 25 amperes C. 28 amperes D. 29 amperes
C
Which of the following statements about an enclosed type single-throw knife switch is/are correct? I. The switch shall be placed so that gravity will not tend to close the blades. II. A switch approved for inverted mounting shall be provided with a locking device that will ensure that the blades remain in the open position when so set. A. I only B. II only C. Both I and II D. Neither I or II
C
Which of the following statements about liquidtight flexible metal conduit is/are correct? I. Angle connectors shall not be used for concealed raceway installations. II. Liquidtight flexible metal conduit shall not be used where subject to physical damage. A. I only B. II only C. Both I and II D. Neither I nor II
C
A single-family dwelling contains a 200 amp 10 main-service panel with 75 degree celsius equipment terminations and is being supplied with size 2/0 AWG, Type THW copper conductors in rigid metal conduit. The minimum allowable size of the bonding jumper for this service-entrance conduit is: A. 6 AWG aluminum B. 6 AWG copper C. 4 AWG aluminum D. 4 AWG copper
D
Air duct detectors shall be installed in such a way as to obtain a representative sample of the airstream. This installation shall be permitted to be achieved by any of the following methods, except: A. installation through the duct with B. rigid mounting to the wall of the duct C. rigid mounting within the duct projected light beam D. all of these methods are permitted with the sensing element protruding into the duct
D
In the diagram shown above: The total calculated load for the service is 200 amps for each ungrounded conductor and 60 amps maximum unbalanced load for the grounded conductor. Equipment terminators provided are 75 degrees celsius and Type THW copper conductors are used. The minimum allowable size of the grounded conductor is: A. 6 AWG B. 4 AWG C. 2 / 0 AWG D. 3 / 0 AWG
B
A listed non-power limited fire alarm cable contains 18 AWO conductors. What is the allowable ampacity of the 18 AWG supply conductors? A. 6 amps B. 8 amps C. 10 amps D. 12 amps
A
A branch circuit is supplying a single hermetic refrigerant motor-compressor for an air conditioning unit. The hermetic refrigerant motor-compressor rated-load current is 18 amperes. If a 30-ampere fuse will not start the motor-compressor, the maximum rating of the branch-circuit short-circuit and ground-fault protective device may be increased to: A. 35 amps B. 40 amps C. 45 amps D. 50 amps
B
Rigid non metallic conduit is permitted to be used for any of the following, except: A. underground installations B. for the support of lighting fixtures C. concealed in walls D. in cinder fill when effectively braced
B
The identification of the terminal intended for connection of the grounded conductor to a polarized receptacle can be identified by a metal or metal coating that is substantially: A. Gold in color B. White in color C. Green in color D. Yellow in color
B
The maximum allowable ampacity of each of three - (3) single insulated 75 degree celsius rated 6 AWG copper conductors in a raceway is: A. 55 amps B. 65 amps C. 70 amps D. 80 amps
B
The maximum allowable ampacity of three-(3) single insulated 75 degrees celsius rated size 6 AWG copper conductors in a raceway is: A. 55 amps B. 65 amps C. 70 amps D. 80 amps
B
The minimum allowable trade size of a rigid, PVC conduit, Schedule 40, containing four-(4) size 8 AWG, Type TW copper conductors is: A. 1/2 B. 3/4 C. 1 D. 11/2
B
A store building measures 60 ft. by 80 ft. and is supplied by a 240/120V, 30, 4-wire delta system. Which of the following is the minimum allowable number of 2-wire, 20 ampere branch circuits required to supply the general lighting in this building? A. 6 B. 7 C. 8 D. 9
C
Under the special restricted low voltage (SP-LV) contracting license classification, which of the following is/arecorrect? I) work may begin on the load side of the isolating device 2) the isolating device may be installed by the holder of the special restricted low voltage (SP-LV) license a. I only b. 2 only c. both l and 2 d. neither 1 nor 2
a
What determines the class of pathways for protected premises fire alarm systems? a. class is determined by an evaluation of path performances as required by circuit conductors governing codes, standards, and analysis b. a. class is based on the transmission of media used c. class is based on the length of the circuit conductors d. class is based on the total area of the building covered by a single circuit
a
A branch circuit is protected by a 100 ampere circuit breaker. What is the minimum required AWG size of theequipment grounding conductor for this branch circuit? a. #10 aluminum b. #8 copper c. #10 copper d. #12 copper
b
Detectors are not required below open grid ceilings if: a. openings of the grid are 1/4 inch or larger in the least dimension and the thickness of the material does not exceed the least dimension b. openings constitute at least 70% of the area of the ceiling material c. both A and B d. neither A nor B
c
A metal box with cable clamps contains two-(2) size 14 AWG, two conductor nonmetallic-sheathed cables with an equipment grounding conductor. Which of the following is the minimum allowable capacity of the box? A. 12 cu. in B. 14 cu. in C. 16 cu. in D. 18 cu. in
A
A metal outlet device box contains - (8) size 12 AWG conductors. Which of the following is the minimum allowable box dimensions: A. 4 x 1 1/4 in. square B. 4 x 1 1/2 in. square C. 4 x 2 1/8 in. square D. 4 x 2 1/8 in octagonal
A
A panelboard without individual protection contains six - (6) 3-pole circuit breakers and eight - (8) 2-pole circuit breakers. The maximum number of single-pole circuit breakers permitted to be added in this panelboard is: A. 8 B. 16 C. 28 D. 42
A
A wireway contains unspliced conductors with a total cross sectional area of 7.05 square inches. What isthe minimum allowable size of this wireway? 7.05 SQ IN x 5 = 35.25 SQ IN SQ ROOT OF 35.25 = 5.9 or 6 6 x 6minimum wireway a. 6 X 6 b. 8 x 8 c. 10 X l 0 d. 4 x 4
A
All of the following are standard ampere ratings for inverse time circuit breakers except: A. 275 B. 300 C. 350 D. 400
A
An electrical contractor must report to the Board, in writing, any additions to or loss of the employment of listed qualified individuals within how many days of such a change? A. five days B. ten business days C. thirty days D. no such reporting is required
A
Conductors connected in parallel shall meet a11 of the following conditions, except A. to be run in the same raceway B. have the same insulation type C. be terminated in the same manner D. have the same circular mil area
A
Disregarding all exceptions, which of the following statements about Type MI cable is correct A. It may be used in hazardous location B. It shall not be used where exposed to oil and gasoline C. It shall be securely supported at intervals not exceeding 10 ft D. A single run of cable shall not contain more than the equivalent of 4 quarter bends
A
Ferrous raceway is (RMC) and fittings which are protected from corrosion solely by enamel are permitted to be installed in which of the following locations? 1. Indoors only and in occupancies not subject to severe corrosive influences 2. Any atmospheric condition or occupancy A. 1 only B. 2 only C. both 1 and 2 D. neither 1 nor 2
A
How many additional loads may a branch circuit supplying fire alarm equipment or emergency communications system supply? A. none B. one C. There is no limit D. none of the above
A
In a single family dwelling, how far should a smoke detector be mounted on a smooth ceiling from the adjoining wall surface? A. 4 inches B. 6 inches C. 12 inches D. 18 inches
A
Type TW insulation has a temperature rating of: A. 60 degrees celsius B. 75 degrees celsius C. 90 degrees celsius D. 110 degrees celsius
A
Under the special restricted low voltage (SP-LV) contracting license classification, which of the followingis/are correct? I) a licensee in this classification is entitled to engage in any electrical contracting project covered under theSP-LV classification regardless of the dollar value of such project 2) a licensee in this classification is entitled to engage in a project installed in locations defined as Class 1 Division 1 hazardous locations a. 1 only b. 2 only c. both 1 and 2 d. neither 1 nor 2
A
What is the maximum number of supervisory signal-initiating devices permitted to be connected to a single initiating device circuit? A. 20 B. 15 C. 10 D. 5
A
A 240V, 10, 21.85 KW commercial cooking appliance is to be supplied by Typterm-28e TW copper branch circuit conductors. Which of the following is the minimum allowable size of the conductors? A. 3 AWG B. 2 AWG C. 1 AWG D. 1/0 AWG
B
A 75 kva transformer has a 480v, 30, 3-wire delta primary and a 208/120V, 30, 4-wire wye secondary and is fed from a 225-amp plug-in bus duct protected by a 225-amp circuit breaker. Primary and secondary overcurrent protection is being required for this installation. Which of the following statements about the overcurrent protection for this transformer is/are correct? I. It shall have a primary overcurrent device rated at not more than 200 amperes. II. It shall be permissible to have a single nonadjustable overcurrent device on the secondary side rated at more than 300 amperes. A. I only B. II only C. Both I and II D. Neither I nor II
B
Unless otherwise specifically permitted elsewhere in the NEC, which one of the following is the maximum overcurrent protection for three -(3) size 12 AWG, Type THWN copper conductors installed in a raceway? A. 15 amps B. 20 amps C. 25 amps D. 30 amps
B
Visible notification appliances(s) will be required when the average ambient sound level is greater than A. 90 dBa B. 105 dBa C. 110 dBa D. 120 dBa
B
What is the maximum number of 16 AWG, XHHW conductors permitted to be installed in liquidtight flexible metal conduit with a metric designator of 12? A. 3 conductors B. 4 conductors C. 5 conductors D. 6 conductors
B
What is the minimum rating in amperes of a branch circuit serving a single phase motor, rated 2horsepower and 115 volts? a. 20 amperes b. 30 amperes c. 15 amperes d. 45 amperes
B
What is the minimum required light output of a ceiling mounted visual notification appliance in a roommeasuring 40 x 35 ft, with a ceiling height of 18 ft? a. 60 cd b. 75 cd c. 80 cd d. 95 cd
B
What type of fluorescent lamps must be supplied? A. Daylight B. Cool White C. Warm White D. Warm White Deluxe
B
Which of the following is not a standard rating for a circuit breaker? A. 1200 A B. 1500 A C. 1600 A D. 2000 A
B
A 240V, 5HP, 30 squirrel-cage motor has a full-load current rating of 15.2 amperes. The standard rating of a dual element (time-delay) fuse used to provide branch-circuit short-circuit and ground-fault protection shall be permitted to be: A. 20 amps B. 25 amps C. 30 amps D. 35 amps
C
Equipment terminations provided are 75 degrees celsius and Type THHN copper conductors in conduit are to be used. The minimum allowable size of the underground conductors in the feeder shown above question #21 is: A. 4 / 0 AWG B. 250 kcmil C. 300 kcmil D. 350 kcmil
C
Which of the following may be used as a feeder from the service equipment to a mobile home? I. a permanently installed feeder. II. One 50-ampere power-supply cord. A. I only B. II only C. Either I or II D. Neither I nor II
C
Which of the following statements about a size 2 AWG, Type THHN copper conductor is correct? A. it has nylon insulation B. its area is .067 square inches C. its maximum operating temperature is 90 degrees celcius D. It has a standard DC resistance of .266 ohms per 1000 ft.
C
Which of the following statements about supplementary overcurrent protection is correct? A. It shall be readily accessible B. It shall not be used in luminaries C. It may be used to protect internal circuits of equipment D. It may be used as a substitute for a branch-circuit overcurrent device.
C
Which of the following statements about the Board's rules (Title 21 NCAC 18B) is/are correct? I. All licensees must notify the board in writing within 30 days of any change of mailing address and telephone number. II. All electrical contracting business, including all business advertising and the submission of all documents and papers, conducted in the state of North Carolina by a licensee of the Board shall be conducted in the exact name in which the electrical contracting license is issued. A. I only B. II only C. Both I and II D. Neither I nor II
C
Which of the following statements about the inspection of electrical work is/are correct? I. Inspectors shall make as many inspections as are necessary to insure compliance with the applicable laws. II. An inspector shall issue a certificate of compliance when the completed electrical installation complies with all applicable laws and with the terms of the permit. A. I only B. II only C. Both I and II D. Neither I nor II
C
Which of the following statements about the mounting of electric equipment is/are correct? I. Electric equipment shall be firmly secured to the surface on which its mounted. II. Wooden plugs driven into holes in masonry, concrete, plaster, or similar materials shall not be used A. I only B. II only C. Both I and II D. Neither I nor II
C
Which one of the following is the minimum size conductor permitted to be used for the bonding conductor in a swimming pool instalation? A. 10 AWG stranded copper conductor B. 10 AWG solid copper conductor C. 8 AWG solid copper conductor D. 8 AWG stranded copper conductor
C
Audible and visual notification appliances to alert occupants that there is a fire condition are required in: A. exit stair enclosures B. elevator cars D. exit passageways D. hotel lobbies
D
The main aspects to consider when evaluating a project are: A. the type of work involved B. the location of the job C. the ability of the company to do the work D. all of the above
D
The minimum standard size use fuse required to protect conductor A in the feeder shown above question #21 is: A. 200 amps B. 225 amps C. 250 amps D. 300 amps
D
The terminal to be used for the connection of the equipment grounding conductor shall be identified by which of the following? A. a green terminal screw with a hexagonal B. a green hexagonal terminal nut that is C. a green pressure wire connector head that is not readily removable D. any of the above
D
Where ceiling heights allow, wall-mounted fire alarm signal devices shall have their tops at heights above the finished floors not less than: A. 48 in B. 60 in C. 72 in D. 90 in
D
Which of the following is not considered a type of smoke detector? a. projected beam-type detector b. pneumatic rate-of-rise tube heat c. air sampling-type detector d. ionization smoke detectordetector
D
Which of the following is permitted as a light source color for a visible notification appliance? A. clear or natural white. B. any color that is not white C. natural or normal red D. Clear or nominal white
D
Which of the following is the minimum bending radius for a type TC cable with metal shielding? A. four times the cable diameter B. six times the cable diameter C. eight times the cable diameter D. twelve times the cable diameter
D
What factor is required to be used to size a thennal integral overload protective device for a motor with a markednameplate ampere rating of over 9 amperes, but less than 20 amperes? a. 115% b. 140% c. 156% d. 172%
c