Download [VAJES] VA Journeyman Electrician Spanish Certification Exam Guide and more Exams Technology in PDF only on Docsity!
Certification Exam Guide
Question 1. Which Virginia regulation requires a journeyman electrician to report any unsafe conditions observed on a job site? A) Virginia Board of Contractors § 54.1- 3900 B) Virginia Electrical Safety Code § 210. C) Virginia Occupational Safety and Health Act § 20- 45 - 1 D) Virginia Consumer Protection Act § 59.1- 1 Answer: A Explanation: § 54.1‑3900 of the Virginia Board of Contractors mandates reporting unsafe conditions to maintain public safety. Question 2. Under Virginia licensure rules, a journeyman’s license is automatically revoked after how many consecutive months of expiration? A) 3 months B) 6 months C) 12 months D) 24 months Answer: B Explanation: Virginia law states that a license expired for more than six consecutive months is subject to automatic revocation. Question 3. What is the minimum age requirement to qualify for a Virginia Journeyman Electrician license? A) 16 years B) 18 years C) 21 years D) 25 years Answer: B
Certification Exam Guide
Explanation: Applicants must be at least 18 years old to meet the statutory age requirement for licensure. Question 4. Which of the following actions is considered a prohibited act for a Virginia‑licensed electrician? A) Performing work under a supervisory electrician’s direct oversight B) Using a licensed contractor’s name without authorization C) Submitting a renewal application before the expiration date D) Attending a continuing education seminar Answer: B Explanation: Using another contractor’s name without permission is classified as unauthorized practice and is prohibited. Question 5. When reinstating an expired Virginia journeyman license, what is the first step the applicant must take? A) Pay a reinstatement fee only B) Complete a new apprenticeship program C) Submit proof of continuing education for the lapsed period D) File a petition with the Board of Contractors Answer: D Explanation: The applicant must petition the Board of Contractors for reinstatement before any other requirements are considered. Question 6. Ohm’s Law states that voltage equals current multiplied by resistance. Which expression correctly represents this relationship? A) V = I / R B) V = I × R
Certification Exam Guide
C) Clamp meter D) Multimeter in voltage mode Answer: B Explanation: A non‑contact voltage detector pen senses electric fields to indicate voltage presence without direct contact. Question 10. In a residential wiring installation, which conduit material is prohibited for use in wet locations? A) EMT (Electrical Metallic Tubing) B) Rigid metal conduit (RMC) C) PVC conduit D) Flexible metal conduit (FMC) Answer: D Explanation: FMC is not rated for wet locations; EMT, RMC, and PVC are permissible. Question 11. According to the National Electrical Code (NEC), the minimum clearance between a service entrance conductor and a combustible surface is: A) 1 in. B) 3 in. C) 6 in. D) 12 in. Answer: C Explanation: NEC 300.21 requires a minimum 6‑inch clearance from combustible materials for service conductors. Question 12. When selecting a service disconnect for a single‑family dwelling, which device is typically required by code?
Certification Exam Guide
A) Two‑pole circuit breaker rated for the service amperage B) Single‑pole fuse rated for the service amperage C) A manually operated switch with a lockout D) A ground‑fault circuit interrupter (GFCI) Answer: A Explanation: A two‑pole breaker provides simultaneous disconnection of both hot conductors and meets NEC 230.70(A). Question 13. The demand factor for lighting loads in a commercial office building is generally: A) 100 % B) 75 % C) 50 % D) 30 % Answer: C Explanation: NEC Table 220.42 permits a 50 % demand factor for general lighting loads in commercial offices. Question 14. A 20‑amp branch circuit supplying receptacles must use a minimum wire size of: A) 14 AWG copper B) 12 AWG copper C) 10 AWG copper D) 8 AWG copper Answer: B Explanation: NEC 210.19(A)(1) requires at least 12 AWG copper for a 20‑amp circuit.
Certification Exam Guide
Answer: B Explanation: Bonding ties together conductive parts to maintain equal potential, preventing shock hazards. Question 18. For a three‑phase, 4‑wire wye system, the grounding conductor is connected to which point? A) The line conductors B) The neutral point of the transformer C) The phase A conductor only D) The equipment grounding bus only Answer: B Explanation: The grounding conductor is bonded to the system neutral (the wye center) to provide a fault return path. Question 19. According to NEC, the maximum size of a grounding electrode conductor for a 100 ‑amp service is: A) 8 AWG copper B) 6 AWG copper C) 4 AWG copper D) 2 AWG copper Answer: B Explanation: NEC Table 250.66 lists 6 AWG copper as the minimum size for a 100‑amp service grounding electrode conductor. Question 20. Which overcurrent protective device is required to protect a feeder that supplies a dwelling’s kitchen branch circuits? A) A 15‑amp GFCI breaker
Certification Exam Guide
B) A 20‑amp two‑pole breaker with a 125 % rating C) A 30‑amp two‑pole breaker with a 125 % rating D) A 40‑amp single‑pole breaker with a 100 % rating Answer: C Explanation: Kitchen branch circuits require 20‑amp circuits; the feeder must be sized at 125 % of the calculated load, typically a 30‑amp two‑pole breaker. Question 21. When calculating ampacity for conductors in a raceway that contains more than three current‑carrying conductors, which correction factor must be applied? A) 0.8 for 4–6 conductors B) 0.7 for 4–6 conductors C) 0.5 for any number over three D) No correction is required Answer: A Explanation: NEC Table 310.15(B)(3)(a) requires a 0.8 derating factor for 4–6 current‑carrying conductors in a raceway. Question 22. What is the temperature rating of THHN insulation when used in a 90 °C (194 °F) environment? A) 60 °C B) 75 °C C) 90 °C D) 105 °C Answer: C Explanation: THHN is rated for 90 °C continuous operation in dry locations.
Certification Exam Guide
Explanation: Line wires feed the GFCI; downstream protected outlets are attached to the load terminals. Question 26. According to Virginia state law, a journeyman electrician must complete how many continuing education (CE) hours every two years to maintain licensure? A) 8 hours B) 12 hours C) 16 hours D) 24 hours Answer: B Explanation: Virginia requires 12 CE hours biennially for journeyman electricians. Question 27. Which NEC article governs the installation of receptacles in dwellings? A) 210. B) 210. C) 210. D) 210. Answer: A Explanation: Article 210.52 outlines the required number and placement of receptacles in dwelling units. Question 28. A feeder supplying a commercial building’s HVAC system is rated at 125 A. What size copper conductor (based on 75 °C rating) should be used, ignoring derating? A) 2 AWG B) 1 AWG C) 1/0 AWG
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D) 2/0 AWG
Answer: C Explanation: According to NEC Table 310.15(B)(16), 1/0 AWG copper at 75 °C is rated for 150 A, which covers a 125 A feeder. Question 29. In a three‑wire cable (NM‑B) used for a 120/240‑V circuit, which conductor serves as the neutral? A) Black B) Red C) White D) Green Answer: C Explanation: The white conductor is designated as the neutral in NM‑B cable. Question 30. The minimum depth for burying a direct‑burial PVC conduit carrying a feeder is: A) 6 in. B) 12 in. C) 18 in. D) 24 in. Answer: B Explanation: NEC 300.5 requires a minimum of 12 in. cover for PVC conduit unless protected by GFCI or other exceptions. Question 31. Which of the following devices provides both over‑current protection and a ground‑fault interruption for a 20‑amp circuit? A) Standard circuit breaker
Certification Exam Guide
A) Pay a late fee and continue working until the board processes the renewal B) Cease all electrical work until the license is reinstated C) Work under a licensed contractor’s supervision without penalty D) Submit a new application and retake the exam Answer: B Explanation: Working with an expired license is illegal; the electrician must stop all work until reinstated. Question 35. Which of the following is the correct term for the protective device that limits fault current by opening the circuit at a predetermined current level? A) Surge protector B) Fuse C) Capacitor bank D) Transformer Answer: B Explanation: A fuse is a protective device that melts when current exceeds its rating, interrupting the circuit. Question 36. The NEC requires that a disconnecting means for a single‑family dwelling’s service be located: A) Inside the building only B) At the point of entry, either inside or outside C) Only in a separate utility room D) Within 10 ft of the main panel Answer: B Explanation: NEC 230.70(A) permits the service disconnect to be at the point of entry, either inside or outside the building.
Certification Exam Guide
Question 37. When using a multimeter to measure resistance, the circuit must be: A) Powered on and live B) De‑energized and isolated C) Connected to a ground rod D) Protected by a GFCI outlet Answer: B Explanation: Resistance measurements must be taken on a de‑energized circuit to avoid damage to the meter and ensure safety. Question 38. Which conductor size is required for a 30‑amp branch circuit supplying a kitchen countertop receptacle? A) 14 AWG copper B) 12 AWG copper C) 10 AWG copper D) 8 AWG copper Answer: B Explanation: NEC 210.23(A)(1) requires at least 12 AWG copper for 20‑ and 30‑amp kitchen countertop circuits. Question 39. A “knock‑out” in a metal junction box is used to: A) Provide a location for conduit entry B) Allow removal of a section to accommodate a larger conduit or cable C) Serve as a grounding point D) Indicate the box’s fire‑rating Answer: B
Certification Exam Guide
D) Uncovered, as fire‑rating is not required for feeders Answer: C Explanation: Conduit passing through fire‑rated walls must be listed for use in fire‑rated assemblies per NEC 300.21. Question 43. The NEC defines a “multi‑wire branch circuit” as a circuit that: A) Has more than three conductors of the same voltage B) Shares a neutral conductor between two or more ungrounded conductors C) Uses three‑phase power with a neutral D) Contains a dedicated ground wire for each hot conductor Answer: B Explanation: A multi‑wire branch circuit shares a neutral between two or more hot conductors of opposite phase. Question 44. For a lighting circuit that serves 30 recessed lights, each rated at 75 W, the calculated load (using the 125 % factor) is: A) 2,250 W B) 2,812 W C) 3,000 W D) 3,750 W Answer: B Explanation: Total wattage = 30 × 75 W = 2,250 W. Applying 125 % → 2,250 W × 1.25 = 2,812.5 W (rounded to 2,812 W). Question 45. Which of the following is the correct definition of “service entrance conductors” according to the Virginia Electrical Code? A) Conductors that connect the utility transformer to the main disconnect
Certification Exam Guide
B) Conductors that run from the main panel to branch circuits C) Conductors that supply power to a single receptacle D) Conductors that provide grounding for all equipment Answer: A Explanation: Service entrance conductors carry power from the utility’s point of delivery to the building’s service disconnect. Question 46. In Virginia, the minimum required experience for a journeyman electrician license includes: A) 2,000 hours of classroom instruction only B) 4,000 hours of on‑the‑job training under a master electrician C) 8,000 hours of apprenticeship plus a written exam D) No experience, only passing the exam Answer: B Explanation: Virginia requires at least 4,000 hours (approximately 2 years) of supervised on‑the‑job training. Question 47. A 60 A, 240‑V dryer circuit requires which minimum wire size for copper conductors (75 °C rating) without derating? A) 10 AWG B) 8 AWG C) 6 AWG D) 4 AWG Answer: B Explanation: NEC Table 310.15(B)(16) shows 8 AWG copper rated for 55 A at 75 °C; however, for 60 A a 6 AWG is required. Correction: The correct answer is C. Answer: C
Certification Exam Guide
Answer: B Explanation: NEC requires continuous loads not to exceed 80 % of the breaker rating: 0.8 × 20 A = 16 A. Question 51. A “dead‑front” panel cover must be installed on: A) Only on residential panels B) Any panel that contains live parts accessible to the user C) Only on outdoor panels D) Panels located more than 5 ft above the floor Answer: B Explanation: Dead‑front covers protect users from accidental contact with energized components on any panel. Question 52. Which of the following is the correct method to calculate voltage drop for a 150 ‑ft run of 12 AWG copper carrying 15 A at 120 V? (Assume 2 % maximum) A) 1.2 V B) 2.4 V C) 3.6 V D) 4.8 V Answer: B Explanation: Voltage drop = (2 × K × I × L) / CMA; using K≈12.9 for copper, CMA≈6530, gives ~2.4 V (2 % of 120 V). Question 53. In a commercial building, the required number of receptacle outlets per linear foot of wall space in a general office area is: A) 1 per 6 ft B) 1 per 8 ft
Certification Exam Guide
C) 1 per 12 ft D) 1 per 24 ft Answer: B Explanation: NEC 210.52(A)(1) requires receptacles spaced not more than 8 ft apart. Question 54. Which type of conduit is permitted for use in hazardous (Class I, Division 2) locations? A) EMT (Electrical Metallic Tubing) B) Flexible metal conduit (FMC) C) PVC conduit D) Rigid metal conduit (RMC) only Answer: A Explanation: EMT is listed for use in many hazardous locations per NEC 500.12. Question 55. The minimum size of a grounding electrode conductor for a 200‑amp service using copper is: A) 6 AWG B) 4 AWG C) 2 AWG D) 1/0 AWG Answer: C Explanation: NEC Table 250.66 indicates 2 AWG copper for a 200‑amp service. Question 56. Which of the following devices is required to protect a pool pump motor circuit? A) Standard circuit breaker
