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Key Facts: Oregon Low Voltage Practice Exam

LEA

All Limited-Energy Systems

Oregon BCD Form 440-2570I

LEB

Excludes Protective Signaling

Oregon BCD Form 440-2570I

Separate

Technician and Business Authority

Oregon BCD Form 440-2570I

100 Q

Practice Questions

OpenExamPrep

This route spans Oregon LEA and LEB concepts and is not one generic contractor exam. LEA covers all limited-energy systems; LEB excludes protective signaling. Verify both the individual license and the employing or operating business requirements.

Sample Oregon Low Voltage Practice Practice Questions

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1Which Oregon agency regulates low voltage electrical licensing?
A.OR Department of Labor
B.OR Building Codes Division (BCD)
C.OR Construction Contractors Board
D.OR Department of Consumer Affairs
Explanation: The Oregon Building Codes Division (BCD), within the Department of Consumer and Business Services, regulates electrical licensing including restricted energy and limited energy technician classifications.
2What is the Restricted Energy Technician license in Oregon?
A.A general electrical contractor license
B.A license for installing low voltage systems under 100VA
C.A license for limited energy systems including fire alarm, security, and communications
D.A plumbing license
Explanation: Oregon's Restricted Energy Technician license authorizes installation of limited energy systems including fire alarm, security, telecommunications, and similar low voltage systems under the Building Codes Division.
3What is the Limited Journeyman Limited Energy (LE) license in Oregon?
A.A helper classification
B.A full journeyman electrician license
C.A license for installing limited energy systems with demonstrated experience
D.A supervisory-only license
Explanation: Oregon's Limited Journeyman LE license is for experienced technicians who have demonstrated competency through work experience and examination in limited energy system installation.
4Under NEC Article 725, what are the three classes of signaling circuits?
A.Class A, B, C
B.Class 1, 2, 3
C.Type 1, 2, 3
D.Grade 1, 2, 3
Explanation: NEC Article 725 defines Class 1, 2, and 3 circuits with different voltage/power limitations determining wiring methods and installation requirements.
5What NEC edition does Oregon currently use for electrical installations?
A.2017 NEC
B.2020 NEC
C.2023 NEC
D.2026 NEC
Explanation: Oregon has adopted the 2020 NEC as the basis for electrical installations. All low voltage work must comply with this edition plus any Oregon-specific amendments.
6In Oregon, what is required before performing low voltage electrical work?
A.Nothing
B.An electrical permit from the BCD or local jurisdiction
C.Only verbal owner approval
D.A federal license
Explanation: Oregon requires an electrical permit before performing low voltage work. Permits are obtained through the BCD or local jurisdictions that have assumed electrical inspection authority.
7Which NEC article covers fire alarm system installations?
A.Article 700
B.Article 725
C.Article 760
D.Article 800
Explanation: NEC Article 760 covers fire alarm system wiring including PLFA and NPLFA circuits, cable types, and separation requirements.
8What cable type is required for PLFA circuits in plenum spaces?
A.FPL
B.FPLR
C.FPLP
D.CM
Explanation: FPLP (Fire Power-Limited Plenum) cable is required in plenum spaces with low smoke and flame-spread characteristics per NEC 760.
9NFPA 72 minimum standby battery: how long?
A.12h + 5min alarm
B.24h + 5min alarm
C.24h + 15min alarm
D.48h + 10min alarm
Explanation: NFPA 72 requires 24 hours standby plus 5 minutes alarm operation for fire alarm system secondary power.
10Maximum horizontal cable run per TIA-568?
A.50m
B.90m
C.100m
D.150m
Explanation: TIA-568 limits horizontal runs to 90m. Total channel with patch cords cannot exceed 100m.

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