"Missed Low-Voltage Practice
Questions" Latest edition 2026-2027.
Questions & Correct Answers. Graded
A
How often must low voltage cable be supported? - ANSAt least every 6 feet
What device boosts signal strength over long distances? - ANSRepeater
What device converts coaxial signals to twisted pair and vice versa? -
ANSBalun
What do you need to legally operate as a C-7 contractor in California? -
ANSPass the CSLB trade and law exams, and be bonded and licensed
What is the maximum conduit fill percentage for a single cable? - ANS53%
What is the maximum voltage allowed under a C-7 license? - ANS30 volts
What is the proper method to ground shielded low voltage cables? -
ANSGround at one end only
What is the required burial depth for direct-burial low voltage cable? -
ANS18 inches
1
Questions" Latest edition 2026-2027.
Questions & Correct Answers. Graded
A
How often must low voltage cable be supported? - ANSAt least every 6 feet
What device boosts signal strength over long distances? - ANSRepeater
What device converts coaxial signals to twisted pair and vice versa? -
ANSBalun
What do you need to legally operate as a C-7 contractor in California? -
ANSPass the CSLB trade and law exams, and be bonded and licensed
What is the maximum conduit fill percentage for a single cable? - ANS53%
What is the maximum voltage allowed under a C-7 license? - ANS30 volts
What is the proper method to ground shielded low voltage cables? -
ANSGround at one end only
What is the required burial depth for direct-burial low voltage cable? -
ANS18 inches
1
