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CEDIA ESPA EST Practice Test

Category - DHTI

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Which of the following is the impedance of a coaxial cable used in a distributed audio system?
  1. 15 ohms
  2. 50 ohms
  3. 75 ohms
  4. 100 ohms
Explanation
Answer - C - The impedance of a coaxial cable used in a distributed audio system is 75 Ohms.

Key Takeaway: The impedance of a coaxial cable used in a distributed audio system is one of the main factors to verify a cable verification process. The impedance should be about 75 Ohms. The other factors that are verified are whether the wire conductors are in contact when they connect to the Speaker wire, Twisted-pair, and Speaker wire.
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