Journeyman practice test Correct Questions & Answers(2024 Latest Update), Exams of Electrical and Electronics Engineering

Download Journeyman practice test Correct Questions & Answers(2024 Latest Update) and more Exams Electrical and Electronics Engineering in PDF only on Docsity! Journeyman practice test Correct Questions & Answers(2024 Latest Update) There are six conductors in a raceway connected to 75° rated breakers. Each wire has a 70-amp load using THHN conductors. The minimum size conductor used are #__________ AWG. a. 4 b. 6 c. 8 d. 10 - ANSWER a Thermal insulation shall not be installed within __________ inch(es) of recessed fixtures. a. 1⁄2 b. 3⁄4 c. 2 d. 3 - ANSWER d A 1-inch conduit contains three 3-wire circuits. All conductors are #10 TW. Each circuit consist of two phase conductors, one grounded conductor, and one equipment grounding conductor. The maximum ampacity of each phase conductor is__________ amps. a. 24 b. 28 c. 30 d. 35 - ANSWER a The volt/ampere rating of a device that consumes 14.5 amps on a 230-volt circuit is __________ watts. a. 3335 b. 244.5 c. 15.85 d. 14.5 - ANSWER a A 208v, 3 phase heater draws 3,598 watts. How many amperes does it draw? a. 10 b. 12 c. 14 d. 16 - ANSWER a Type 'S' adapters are installed in Edison base fuse holders ___________. a. For the convenience of the owner b. To limit the size of the fuse to be installed c. To increase the speed of removing the fuse once it has blown d. To prevent shocks when installing pennies or other fuse substitutes - ANSWER b A laundry branch circuit shall be rated at ________ amps. a. 15 d. 39.7 - ANSWER b 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 - ANSWER a A high impedance grounded systems are limited to systems operating at __________ volts or above. a. 120 b. 240 c. 277 d. 480 - ANSWER d 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 and manufacturer cannot be determined - ANSWER b Furnaces shall be supplied by a(n) __________ branch circuit. a. Class 1 b. Individual c. General use d. Small appliance - ANSWER b 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 - ANSWER a The minimum size rigid metal conduit or a commercial service rated for 150 amps, 120/240 volts, 3 wire single phase, using THWN wire, is _________ inches. a. 1 b. 1 1⁄4 c. 1 1⁄2 d. 2 - ANSWER b Round boxes shall not be used where conduits or connectors fasten to the __________ of the box. a. Hub b. Side c. Back d. Fittings - ANSWER b In a house, a garbage disposal may be installed with a cord and attachment plug if the cord is _________. a. Grounded b. Over 36 inches long c. Under 120 volts rated d. Nonmetallic sheath cable - ANSWER a Direct burial cables rated above __________ volts shall be shielded. a. 600 b. 1,000 c. 2,000 d. 3,000 - ANSWER c When two ground rods are installed, they shall be separated by a minimum of _________ feet. a. 6 b. 8 c. 10 d. 12 - ANSWER a The minimum vertical clearance for service drop conductors above a pedestrian sidewalk is ________ feet. a. 8 b. 10 c. 12 d. 15 - ANSWER b An expansion joint is required for nonmetallic conduit. When the temperature changes from -15° to 105° Fahrenheit, the thermal expansion for 100 feet of rigid nonmetallic conduit is _________ inches. a. 3.65 b. 4.26 c. 4.87 d. 5.27 - ANSWER c The voltage rating of communications cables shall not be less than ________ volts. a. 50 b. 150 c. 300 d. 600 - ANSWER c MI cable shall be secured within __________ inches of a panel. a. 30 b. 36 c. 48 d. 72 - ANSWER d Auxiliary gutters shall not contain more than _________ current carrying conductors, without derating. a. 30 b. 50 c. 70 d. 90 - ANSWER a The minimum dimensions for a concrete-encased steel reinforcing bar electrode is _________ in length and _________ in diameter. a. 8 feet, 5/8 inches b. 10 feet, 1⁄2 inch c. 20 feet, 1⁄2 inch d. 20 feet, 2 inches - ANSWER c An electrical device which consist of a frame, plunger and coil, and is used to create a push or pull action is called a _________. a. Bender b. Solenoid c. Level switch d. Motor starter - ANSWER b The ampacity of a #6 copper THHW conductor terminated in a switchboard rated at 75°C is ________ amps. a. 55 b. 65 c. 70 d. 75 - ANSWER b Conductor fill of a conduit nipple 24" or less in length shall not exceed __________ percent of its total cross- sectional area. a. 40 b. 55 c. 60 d. 65 - ANSWER c In a nonmetallic box, not larger than 2 1⁄4 inches by 4 inches, cable clamps are not needed if the NM cable is stapled within ___________ inches of the box. a. 6 b. 8 c. 10 d. 12 - ANSWER b Branch circuits larger than _________ amps shall supply only non-lighting loads. a. 20 b. 30 c. 40 d. 50 - ANSWER d The maximum number of #6 AWG type THW conductors allowed in 1" PVC schedule 40 conduit is _______. a. 3 b. 4 c. 6 d. 15 - ANSWER b Type _________ insulated conductors may be used in direct burial applications. a. THW b. THWN c. THHN d. USE - ANSWER d Edison-based type fuses shall not exceed ________ amps. a. 15 b. 20 c. 30 d. 60 - ANSWER c The maximum distance between supports for a 1" rigid nonmetallic conduit is _________ feet. a. 2 b. 3 c. 4 d. 5 - ANSWER b The smallest size conductor permitted for a ground ring is # __________ AWG copper. a. 4 b. 2 c. 1/0 d. 2/0 - ANSWER b b. Requesting an inspection c. Obtaining inspection approval d. A permit has been secured - ANSWER c The _________ exterior door of a dwelling unit is not required to be illuminated. a. Back b. Front c. Garage vehicle d. Garage personnel - ANSWER c 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 - ANSWER a The minimum number of small appliance branch circuits required in a dwelling unit is _________. a. 2 b. 3 c. 4 d. 5 - ANSWER a Where a conduit is used for physical protection for a cable, _________ is required. a. A conduit body b. A fitting at the end of the conduit c. A box to change from conduit to cable d. A staple to protect the cable from abrasion - ANSWER b The size of the main bonding jumper for on 800 kcmil aluminum conductor, per phase, with an aluminum main bonding jumper is ________. a. 3/0 b. 4/0 c. 250 kcmil d. 500 kcmil - ANSWER a What is the minimum size wire for a feeder to a mobile home, rated at 100 amps? a. 1 AWG b. 2 AWG c. 3AWG d. 4 AWG - ANSWER d A box contains two 12/3 NM cables with ground, one device, and one internal cable clamp. What is the required cubic inch capacity? a. 18 b. 20 c. 22.5 d. 25 - ANSWER c A set of four 4-inch PVC conduits is installed, with four 500 kcmil THWN copper conductors in each conduit. When used as service entrance the conductors shall have a maximum overcurrent device rating of _________ amps. a. 800 b. 1,000 c. 1,200 d. 1,600 - ANSWER c Grounding electrode conductors, size __________ AWG, must always be protected from physical damage by an enclosure. a. 4 b. 6 c. 8 d. 10 - ANSWER c