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Exam (elaborations)

RCDD TEST QUESTIONS (TOPIC 15 - TOPIC 21) 100% Correct Answers | Verified | Latest 2024 Version
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32

June 2024

2023/2024

A+
What is the recommended distance between ceiling mounted speakers in a hallway with heavy traffic? A. 2.4 m (8 ft) B. 3.7 m (12 ft) C. 4.9 m (16 ft) D. 6 m (20 ft) - A. 2.4 m (8 ft) A space has all hard surfaces including architecture and furnishings. The audio programming produced from the distributed sound system has become unintelligible. Which of the following will NOT mitigate the problem? A. Add tapestries to the walls. B. Provide additional speakers at lower output. C. Increase ...
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Exam (elaborations)

RCDD TEST QUESTIONS | 100% Correct Answers | Verified | Latest 2024 Version
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38

June 2024

2023/2024

A+
If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is: A. 3 dB B. 20 dB C. 30 dB D. 40 dB E. 1000 dB - C. 30 dB The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The noise level at the input to the receiver is 1 microwatt. What is the signal-to- noise ratio (SNR) (dB) at the receiver inp...
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