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2026 Statistics

Key Facts: WA Low Voltage Exam

70%

Passing Score

Washington Department of Labor & Industries (L&I)

100

Exam Questions

Washington Department of Labor & Industries (L&I)

2 hours

Time Limit

Washington Department of Labor & Industries (L&I)

100 Q

Practice Questions

OpenExamPrep

Sample WA Low Voltage Practice Questions

Try these sample questions to test your WA Low Voltage exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which Washington state agency administers the telecommunications contractor license?
A.Department of Commerce
B.Department of Labor & Industries (L&I)
C.Secretary of State
D.Department of Licensing
Explanation: The Washington Department of Labor & Industries (L&I) administers the telecommunications contractor license (06A) through its Electrical Program. L&I handles examinations, licensing, and enforcement.
2Under WAC 296-46B-920, which specialty designation is Washington's Limited Energy System license that covers low voltage telecommunications, fire alarm, and security wiring?
A.(01) General electrical contractor
B.(06) Limited Energy System
C.(06A) HVAC/Refrigeration
D.(04) Signs
Explanation: Under WAC 296-46B-920, the (06) Limited Energy System specialty covers installation of signaling and power-limited circuits including telecommunications, fire protection signaling, security/intrusion alarms, and similar low voltage work. (06A) is HVAC/Refrigeration, and (09) is the separate Telecommunications specialty.
3Under Washington's electrical rules (WAC 296-46B), how is 'low voltage' defined for telecommunications/limited-energy work?
A.Any circuit under 120 volts regardless of class
B.NEC Class 1 power-limited circuits at 30 volts maximum, Class 2/Class 3 circuits, and telecommunications systems per chapter 19.28 RCW
C.Only circuits under 57 volts
D.Only circuits under 24 volts
Explanation: Washington (WAC 296-46B) defines 'low voltage' as NEC Class 1 power-limited circuits at 30 volts maximum, NEC Class 2 and Class 3 circuits, and the circuits of telecommunications systems as defined in chapter 19.28 RCW. It is defined by circuit class and power limitation, not by a single 57-volt threshold.
4How often must a Washington telecommunications contractor license be renewed?
A.Annually
B.Every 2 years
C.Every 3 years
D.Every 5 years
Explanation: Washington telecommunications contractor licenses must be renewed every 3 years. Renewal requires completing continuing education and paying the renewal fee to L&I.
5What continuing education is required for Washington limited energy/telecommunications administrator certificate renewal?
A.No CE required
B.8 hours per year
C.24 hours per renewal cycle
D.48 hours per cycle
Explanation: Washington requires 24 hours of continuing education per 3-year renewal cycle for telecommunications contractor licenses. CE must cover relevant codes and industry standards.
6What bond is required for a Washington telecommunications contractor?
A.No bond required
B.A $4,000 surety bond
C.A $50,000 surety bond
D.A $100,000 surety bond
Explanation: Washington requires telecommunications contractors to post a $4,000 surety bond as part of their licensing requirements. This bond protects consumers and ensures contractor accountability.
7What is the penalty for performing telecommunications work without a license in Washington?
A.No penalty
B.A civil penalty of up to $10,000 per violation
C.Only a verbal warning
D.Automatic 30-day license suspension
Explanation: Under RCW 19.28, performing or advertising telecommunications/electrical work without the required license subjects the violator to a civil monetary penalty of up to $10,000 per violation, assessed by L&I, along with possible stop-work orders. It is enforced administratively as a civil penalty rather than as a criminal misdemeanor.
8Under Washington law, can a homeowner perform their own low voltage work?
A.No, all work requires licensing
B.Yes, homeowners can work on their own residence with certain limitations
C.Only with a temporary permit
D.Only for systems under 12 volts
Explanation: Washington allows homeowners to perform low voltage/telecommunications work on their own single-family residence. However, permits may still be required and the work must comply with applicable codes.
9What insurance is required for a Washington telecommunications contractor?
A.No insurance required
B.General liability insurance and workers compensation (if employees)
C.Only vehicle insurance
D.Only professional liability
Explanation: Washington requires telecommunications contractors to maintain general liability insurance and workers compensation insurance if they have employees. Proof of insurance must be on file with L&I.
10What is the Washington requirement for electrical permits on low voltage work?
A.No permits ever required
B.Permits required for most commercial and some residential low voltage installations
C.Only required for work over $500
D.Permits are optional
Explanation: Washington requires electrical permits for most commercial low voltage installations and certain residential work. Permits are obtained through L&I or local inspection authorities.

About the WA Low Voltage Exam

The Washington low voltage contractor exam covers state-specific licensing requirements under RCW 19.28 (Electrical Installation), NEC Articles 725, 760, 770, and 800, fire alarm system design and installation (NFPA 72), security system installation, structured cabling standards (TIA-568), and testing/troubleshooting procedures. Telecommunications Contractor's License (06A) through the Department of Labor & Industries, Electrical Program.

Questions

100 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

Varies (Washington Department of Labor & Industries (L&I))

WA Low Voltage Exam Content Outline

20%

Washington State Laws & Licensing

Washington low voltage contractor licensing requirements, RCW 19.28 (Electrical Installation), and state-specific regulations

25%

NEC Codes & Standards

NEC Articles 725, 760, 770, 800 covering remote-control, fire alarm, optical fiber, and communications circuits

20%

Fire Alarm & Security Systems

NFPA 72 fire alarm design, security system installation, detection devices, and notification appliances

20%

Structured Cabling & Telecom

TIA-568 cabling standards, network infrastructure, fiber optics, and telecommunications systems

15%

Testing & Safety

Cable certification, system commissioning, troubleshooting techniques, and workplace safety

How to Pass the WA Low Voltage Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 100 questions
  • Time limit: 2 hours
  • Exam fee: Varies

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

WA Low Voltage Study Tips from Top Performers

1Study Washington-specific licensing requirements under RCW 19.28 (Electrical Installation) and the role of the Department of Labor & Industries, Electrical Program
2Master NEC Article 725 circuit classifications (Class 1, 2, 3) and wiring methods for each class
3Review NFPA 72 for fire alarm system design, detector spacing, NAC circuit requirements, and battery calculations
4Practice TIA-568 structured cabling standards including maximum distances, cable ratings, and testing parameters
5Learn NEC Articles 760, 770, and 800 for fire alarm, fiber optic, and communications cable installation requirements

Frequently Asked Questions

What is the Washington low voltage contractor exam?

The Washington low voltage contractor exam tests knowledge of state licensing requirements, NEC codes (Articles 725, 760, 770, 800), fire alarm systems, security installations, and structured cabling standards required for Telecommunications Contractor's License (06A) licensure.

Who administers the Washington low voltage license?

The Washington Department of Labor & Industries (L&I) administers the low voltage contractor licensing program in Washington. They handle applications, examinations, and enforcement of licensing requirements.

What NEC articles should I study for the low voltage exam?

Focus on NEC Article 725 (remote-control and power-limited circuits), Article 760 (fire alarm systems), Article 770 (optical fiber cables), and Article 800 (communications circuits). These are the primary NEC articles governing low voltage work.

How often must I renew my Washington low voltage license?

Washington low voltage licenses must be renewed every 3 years. Renewal requires 24 hours continuing education per renewal cycle and payment of applicable fees.