C7 Signal Transmission & Cabling Techniques

Question 1

What is the primary purpose of using twisted pair cabling in low voltage systems?

Accepted Answer

To reduce electromagnetic interference and crosstalk

Answer

Twisted pair cabling is used to reduce electromagnetic interference and crosstalk between cables.

Question 2

Which connector type is commonly used with coaxial cables in CCTV systems?

Accepted Answer

BNC

Answer

BNC connectors are standard in coaxial cable applications due to their secure and quick connection.

Question 3

Which cable type is most suitable for high-speed data transmission over long distances?

Accepted Answer

Fiber optic

Answer

Fiber optic cables provide high-speed, long-distance data transmission with minimal signal loss.

Question 4

What is attenuation in cabling systems?

Accepted Answer

Loss of signal strength over distance

Answer

Attenuation is the gradual loss of signal strength as it travels through a cable.

Question 5

Which standard governs structured cabling systems for commercial buildings?

Accepted Answer

TIA/EIA-568

Answer

TIA/EIA-568 outlines the standards for structured cabling in commercial buildings.

(C7) California C7 Low Voltage Systems Contractor Certification Practice Test