CSLB Low Voltage Systems (C-7): Study Guide and Online Practice Exam

What’s included

• Learn the material: Low Voltage Systems (C-7) Study Guide Book
• Pass the test: Low Voltage Systems (C-7) Practice Exam

What this covers

Per the state's classification, a C-7 contractor installs, maintains, tests, and repairs systems that use 91 volts or less, including telephone, data, video, intercom, alarm, and control wiring systems. This printed book covers the subjects the state tests. See the official CSLB C-7 classification.

Sample questions — Try our free practice test

1. FTTC stands for:
   A. Fiber to the current · B. Fiber to the circuit · ✓ C. Fiber to the curb · D. Fiber to the CATV
2. Why do you need Category 5e instead of Category 5?
   A. For greater strength for long pulls · B. To futureproof your network · C. For isolation in industrial networks · ✓ D. To run Gigabit Ethernet
3. Copper networks can be converted to fiber networks by using:
   A. Patch panels · ✓ B. Media converters · C. Rewiring · D. Fiber hubs
4. A convenient unit of measurement to compare the resistance and size of one conductor with another is the:
   ✓ A. ohm · B. mil-foot · C. wattage · D. voltage drop
5. A GFCI breaker or receptacle will open a circuit where there is a current leakage to ground fault of:
   A. .06 · ✓ B. .006 · C. .6 · D. .2
6. A megohmmeter is used to test insulation resistance because it provides a:
   ✓ A. higher potential than an ohmmeter · B. multiple path for resistance · C. convenient means of recording resistance · D. wide range of resistance taps