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100+ Free TX Low Voltage Practice Questions

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2026 Statistics

Key Facts: TX Low Voltage Exam

70%

Passing Score

Texas Department of Public Safety / State Fire Marshal's Office

100

Exam Questions

Texas Department of Public Safety / State Fire Marshal's Office

2 hours

Time Limit

Texas Department of Public Safety / State Fire Marshal's Office

100 Q

Practice Questions

OpenExamPrep

About the TX Low Voltage Exam

The Texas low voltage contractor exam covers state-specific licensing requirements under Texas Occupations Code Chapter 1702, 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. Fire Alarm Technician / Alarm Systems Installer through the Texas Private Security Bureau (under DPS).

Questions

100 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

Varies (Texas Department of Public Safety / State Fire Marshal's Office)

TX Low Voltage Exam Content Outline

20%

Texas State Laws & Licensing

Texas low voltage contractor licensing requirements, Texas Occupations Code Chapter 1702, 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 TX 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

TX Low Voltage Study Tips from Top Performers

1Study Texas-specific licensing requirements under Texas Occupations Code Chapter 1702 and the role of the Texas Private Security Bureau (under DPS)
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 Texas low voltage contractor exam?

The Texas 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 Fire Alarm Technician / Alarm Systems Installer licensure.

Who administers the Texas low voltage license?

The Texas Department of Public Safety / State Fire Marshal's Office administers the low voltage contractor licensing program in Texas. 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 Texas low voltage license?

Texas low voltage licenses must be renewed every 2 years. Renewal requires 6 hours continuing education per renewal cycle and payment of applicable fees.