Journeyman Final Flashcards
There are six conductors in a raceway connected to 75°C rated breakers.Each wire has a 70amp load using THHN conductors.The minimum size conductors used as are #____AWG
A.4
B.6
C.8
D.10
A.4
Thermal insulation shall not be installed within \_\_\_\_inches of recessed fixtures. A.1/2 B.3/4 C 2 D.3
D.3
A 1-inch conduit contains three 3-wire circuits.All conductors are #10 TW.Each circuit consists of two phase conductors,one grounded conductor,and one equipment grounding conductor.The maximum capacity of each phase conductor is \_\_\_amperes. A.24 B.28 C.30 D 35
A.24. (80%)
The volt/ampere rating of s device that consumes 14.5 amperes on a 230 volt circuit is _____watts.
A.3335
B.244.5
C.15.85
D.14.5
A.3335. (14.5 x 230)
Type____cable is not permitted for service entrance.
A.MI
B.MC
C.SE
D.UF
D.UF
Direct burial cables emerging from the ground and subject to physical damage shall be installed in\_\_\_\_\_. A.rigid metal conduit B.electrical metallic tubing C.surface metal raceway D. flexible liquidtight metal conduit
A.rigid metal conduit
A high Impedance grounded systems are limited to systems operating_____volts or above.
A.120
B.240
C.277
D 480
D.480
A junction box for the 120 volt wet-niche fixture shall be at least _____ inches above the ground.
A.0
B.2
C 4
D 8
C.4
A 15 or 20 amp receptacle shall be located within \_\_\_\_\_feet of a roof top air conditioner. A.25 B.35 C.75 D.100
A.25
The minimum as service for a one family-dwelling shall be ____amps.
A.60
B.100
C.125
D.150
B.100
Type ‘S’ adapters are installed in Edison base fuse holders_____.
A for convenience of the owner
B.to limit the size of the fuse to be installed
C.to increase the speed of removing,once it has blown
D.to prevent shocks when installing pennies or other substitutes.
B.to limit the size of the fuse to be installed
A laundry branch circuit shall be rated at \_\_\_\_amps. A.15 B.20 C.25 D.30
B.20
The voltage rating of communications cables shall not be less than ____volts
A.50
B.150
C.300
D.600
C.300
The direction of rotation of the rotor for three -phase motors can be reversed by inter changing any___leads
A.2
B.3
C 4
D.6
A.2
A \_\_\_\_receptacle may be included on the small appliance circuit. A.water pump B.electric clock C smoke detector D.garage door opener
B.electric clock
A light fixture that weighs more than \_\_\_\_pounds shall be supported independently of the fixture box. A.15 B.25 C 30 D.50
D.50
Disconnecting means shall be provided on the supply side of all cartridge fuses of any voltage where ____.
A it is connected in series
B.accessible to other than qualified persons
C. there is a possibility of area being a wet location
D the fuse is of an older type that cannot be determined
B.accessible to other than qualified persons
Furnaces shall be supplied by a(n) \_\_\_\_branch circuit. A.class I B.individual C. General use D.small appliance
B.individual
A screw connecting the neutral bar of a grounded system to the service equipment enclosure is called the \_\_\_\_ A. Main bonding jumper B system neutral connector C equipment bonding jumper D. Equipment grounding connector
A.main bonding jumper
Round boxes shall not be used where conduits or connectors fasten the \_\_\_ of the box. A. Hub B.side C back D.fittings
B.side
In a house, a garbage disposal may be installed with a cord and attachment plug if the cord is ____.
Grounded
Direct burial cables rated above ____volts shall be shielded.
A.600
B 1000
C.2000
D.3000
C.2000
When two ground rods are installed, they shall be separated by a minimum of\_\_\_\_ft. A.6 B.8 C.10 D.12
A.6
The minimum vertical clearance for service drop conductors above pedestrian sidewalk is\_\_\_\_ft. A.8 B 10 C.12 D. 15
B.10
The inspection authority shall be notified not less than\_\_\_hours before an inspection is needed. A.8 B.16 C.24 D.32
C.24
Fixed lighting units may be on a 30 amp branch circuit if they are\_\_\_\_duty lamp holders. A. Light B. Medium C. Heavy D Extra heavy
C.heavy
Boxes installed in the floor shall be\_\_\_\_. A. Brass B. Metal C. Plastic D. Listed for the installation
D. Listed for the installation
A receptacle for laundry equipment shall be located within\_\_\_feet of the intended location. A.3 B.4 C.6 D.8
C.6
Type\_\_\_\_insulated conductors may be used in direct burial applications A.THW B.THWN C.THHN D.USE
D.USE
Edison-base type fuses shall not exceed___amps.
A.15
B.20
C.30
D.60
C.30
The maximum distance between supports for a 1" rigid nonmetallic conduit is\_\_\_\_ft. A.2 B.3 C.4 D.5
B.3
The smallest size conductor permitted for a ground ring is #\_\_\_\_ copper. A.4 B.2 C.1/0 D.2/0
B.2
A single non- motor operated appliance of 13.4 ramps shall have over current protection not to exceed\_\_\_percent of appliance rating. A.100 B.125 C.150 D.200
C.150
Metal light poles must have an accessible hand hole not less than\_\_\_\_\_. A. 2 x 4 B. 4 x 6 C. 6 x 8 D. 8 x 10
A. 2 x 4
An AC general use snap switch used to control a motor load shall not exceed\_\_\_\_% of the ampere rating of the switch at its rated voltage. A.50 B. 70 C. 80 D. 100
C.80
MI cable shall be secured within\_\_\_inches of a panel. A.30 B.36 C.48 D.72
D.72
Auxiliary gutters shall not contain more than\_\_\_\_current carrying conductors, without derating. A.30 B.50 C.70 D.90
A.30
The minimum dimensions for a concrete- encased steel reinforcing bar electrode is\_\_\_\_feet in length and\_\_\_\_in diameter. A.8 feet 5/8 inches B.10 feet 1/2 inches C.20 feet 1/2 inches D.20 feet 2 inches
C.20 feet, 1/2 inch
Conductor fill of a conduit nipple 24" or less in length shall not exceed \_\_\_% of its total cross- sectional area. A.40 B.55 C.60 D.65
C.60
In a nonmetallic box not larger than 2.25 x 4in, cable clamps are not needed if the NM cable is stapled within \_\_\_inches of the box. A.6 B.8 C.10 D.12
B.8
Branch circuits larger than\_\_\_\_amps shall supply only nonlighting loads. A.20 B.30 C.40 D.50
D.50
The code requires \_\_\_\_\_ cubic inches of free space for each #10 wire in an outlet box. A.2 B.2.25 C.2.5 D.3
C.2.5
The minimum size conductor that may be installed in parallel is\_\_\_\_awg. A.#1 B.#2 C.#1/0 D.#2/0
C.#1/0
The maximum number of switches permitted to disconnect a service is \_\_\_\_. A.1 B.4 C.6 D.10
C.6
The ampacity of NM cables is based on the \_\_\_\_ °C column of the table 310.16. A.60 B.75 C.85 D.90
A.60
Short sections of ferrous metal raceway used for physical protection of the grounding electrode conductor shall be bonded at both ends to the \_\_\_\_. A. Ground bar B. Bonding screw C grounding electrode conductor D.main bonding jumper
C.grounding electrode conductor
A feeder in a single family dwelling supplies a load made up of 75 amps of electric space heating and 25 amps of air conditioning.The required capacity of the feeder is \_\_\_amperes. A.25 B.50 C.75 D.100
C.75
Work installed by an electrical contractor can be concealed after ____.
A.applying for the permit
B.requesting
C.obtaining inspection approval
D. a permit has been secured
C.obtaining inspection approval
The \_\_\_\_ exterior door of a dwelling unit is not required to be illuminated. A.back B.front C. Garage vehicle D.garage personnel
C.garage vehicle
Where raceways are installed in wet locations above grade,the interior of these raceways shall be considered a \_\_\_\_ location. A. Wet B.dry C. Damp D. Corrosive
A.wet
The minimum number of small appliance branch circuits required in a dwelling unit is\_\_\_\_. A.2 B.3 C.4 D.5
A.2