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BICSI RCDD-001 Exam
BICSI Registered Communications Distribution Designer (Page 5 )

Updated On: 1-Feb-2026
Page 5 of 73
PDF with 358 Questions

What are the three typical voltages used in centrally amplified paging systems?

  1. 24, 48, and 90
  2. 25, 70, and 100
  3. 25, 90, and 120
  4. 48, 90, and 120

Answer(s): B



Using the sound pressure level (SPL) method of approximating distance and power, calculate the power required to produce 89 dB at 4 m (13.1 ft) with a loud speaker that is rated at a SPL of 95 dB. What input power level (in watts) is required to appropriately power the speaker?

  1. 1 watt
  2. 2 watts
  3. 4 watts
  4. 8 watts

Answer(s): C



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?

  1. Add tapestries to the walls.
  2. Provide additional speakers at lower output.
  3. Increase the volume to the existing speakers.
  4. Reduce the distance of the existing speakers to the listener.

Answer(s): C



What is the recommended distance between ceiling mounted speakers in a hallway with heavy traffic?

  1. 2.4 m (8 ft)
  2. 3.7 m (12 ft)
  3. 4.9 m (16 ft)
  4. 6 m (20 ft)

Answer(s): A



Within building automation hardware systems, there is a hierarchical system of micro processor based controllers.
Which type of controller is used to provide limited port capacity for connection of sensors, support, and execution of DDC programs, and usually operates in stand alone mode?

  1. System level controller
  2. Field level controller
  3. Management level processor
  4. Protocol management system
  5. DDC manager

Answer(s): B



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