AVIXA AVIXA-CTS Online Practice Questions and Exam Preparation

AVIXA AVIXA-CTS Online Questions & Answers

• Question 41:

  Which of the following is the BEST service when new firmware is available for installed equipment across a fleet of conference rooms?

  A. keeping current version
  B. replacing the equipment
  C. updating them all at once
  D. a ringed update approach
  D. a ringed update approach

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  Explanation

  The ringed update approach is the best service when new firmware is available for installed equipment across a fleet of conference rooms. This approach involves updating the firmware in phases or "rings," starting with a small group of devices to ensure that the update is stable and does not introduce new issues. Once the initial ring is confirmed to be successful, the update is gradually rolled out to additional groups, reducing the risk of widespread problems. This method allows for controlled testing and monitoring, ensuring that any issues can be addressed before the update is applied to all devices.

• Question 42:

  As part of a service agreement offering, wfwt PRIMARY role do preventive maintenance visits (PM/PMV) play?

  A. allows the AV provider toclean, service and assess equipment In the field on a regular basis
  B. allows the AV provider to check in with customer and serves as an opportunity to sell further solutions
  C. allows the AV provider tosell a service that is often forgotten by the customer, and therefore generate greater profit
  D. allows the AV provider access to client premises and scope future work
  A. allows the AV provider toclean, service and assess equipment In the field on a regular basis

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  Explanation

  Preventive maintenance visits (PM/PMV) are primarily designed to ensure that equipment is functioning correctly and to prevent potential failures. This involves cleaning, servicing, and assessing the equipment regularly to maintain optimal performance and longevity. This is in line with industry standards for preventive maintenance, ensuring reliability and reducing downtime.

• Question 43:

  According to AVIXA Standards, what is the MINIMUM load rating for truss that will hold a 5000 lbs (2268 kg) LED wall?

  A. 15000 lbs (6804 kg)
  B. 25000 lbs (11340 kg)
  C. 30000 lbs (13608 kg)
  D. 50000 lbs (22678 kg)
  B. 25000 lbs (11340 kg)

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  Explanation

  According to AVIXA standards, the minimum load rating for a truss that will hold a 5000 lbs (2268 kg) LED wall is typically calculated with a safety factor to ensure stability and safety. The safety factor generally used in rigging and truss systems is 5:1. This means the truss should be rated to hold five times the weight of the load it needs to support.

  Given this safety factor:

  5000 lbsx5=25000 lbs5000 \text{ lbs} \times 5 = 25000 \text{ lbs}5000 lbsx5=25000 lbs Therefore, the minimum load rating required for the truss to safely support a 5000 lbs (2268 kg) LED wall is 25000 lbs (11340 kg).

  References:

  AVIXA Rigging Guidelines

  Understanding Load Ratings and Safety Factors Rigging and Load Calculations in AV Installations

• Question 44:

  Before a live event that uses several wireless microphones, what should the AV team do to reduce the risk of RF problems?

  A. Perform frequency coordination or scanning, verify antenna placement, check battery status, and test the microphones in the venue.
  B. Set every transmitter to the same frequency so all receivers can hear every microphone.
  C. Turn transmitter power to maximum and skip the sound check.
  D. Use only the factory default frequencies because they are always clear.
  A. Perform frequency coordination or scanning, verify antenna placement, check battery status, and test the microphones in the venue.

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  Explanation

  Wireless microphone reliability depends on frequency selection, antenna placement, battery condition, and venue testing. Coordination or scanning helps avoid local interference and intermodulation issues. Shared frequencies, maximum power without testing, or default channels can create dropouts, noise, or unusable microphones.

• Question 45:

  A client has a room that can be used as one large room or three separate rooms. Each room has several different audio and video options.

  What type of system should be suggested to the client for ease of use?

  A. switching
  B. control
  C. sound
  D. lighting
  B. control

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  Explanation

  For a room that can function as one large space or be divided into smaller rooms, a control system is ideal. This system can manage audio and video sources across different zones, allowing users to easily switch between configurations depending on room layout. Control systems facilitate seamless operation by centralizing control of AV functions.

  CTS Technology Specialist Reference

  CTS guidelines recommend control systems for multi-room setups, enabling simplified management of audio and video distribution across spaces that can be reconfigured.

• Question 46:

  Reverberant sound reaches the listener's ears.

  A. after
  B. before
  C. synchronized with D at the same level as the direct sound.
  A. after

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  Explanation

  Reverberant sound reaches the listener's ears after the direct sound. This occurs because reverberant sound is reflected off various surfaces within a space, such as walls, ceilings, and floors, before arriving at the listener. The time delay between the arrival of the direct sound and the reverberant sound contributes to the sense of space and ambience in an environment.

• Question 47:

  HOTSPOT

  When compared to Listener 4, which listener simultaneously hears the speaker at +6db?

  Select the answer by clicking on the correct listener.

  

  

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  Listener 2

  In sound propagation, every doubling of distance from a sound source generally results in a decrease of approximately 6 dB in sound level due to the inverse square law. Conversely, when moving closer to the sound source, the sound level increases by approximately 6 dB each time the distance is halved.

  Given Listener 4 is at 20 feet from the speaker: Listener 3 is at 15 feet, which is closer but not a direct halving of Listener 4's distance, so the change is less than 6 dB.

  Listener 2 is at 10 feet, which is half the distance of Listener 4 (20 feet). This halving of distance results in a sound level increase of approximately 6 dB.

  Listener 1 is at 5 feet, which is closer than Listener 2 and results in a higher increase in dB compared to Listener 4.

  CTS Technology Specialist Reference

  Understanding sound level changes over distance is essential in AV system design to ensure balanced audio coverage. The CTS materials cover the inverse square law extensively, explaining how sound pressure levels change as the distance from the sound source varies. Listener 2, at half the distance from Listener 4, receives sound at +6 dB compared to Listener 4, aligning with this principle.

• Question 48:

  While conducting routine maintenance, an AV technician notices that there is distortion coming from the main loudspeaker. This is likely caused because the amplifier's.

  A. volume is minimized.
  B. volume is maximized.
  C. input signal is clipping.
  D. input signal is showing a bouncing audio signal.
  C. input signal is clipping.

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  Explanation

  Distortion from the loudspeaker is often caused by the input signal clipping, which occurs when the input level exceeds the amplifier's capacity, resulting in a distorted output. Clipping is typically due to overdriven signals, which can lead to speaker damage if unaddressed.

  CTS Technology Specialist Reference

  The CTS materials explain clipping and distortion as common audio issues resulting from improper gain structure, which should be avoided to maintain sound quality.

• Question 49:

  Which of the following is a benefit of benchmarking in an AV project?

  A. Identifies project risks
  B. Determines project budget
  C. Confirms project delivery times
  D. Exposes clients to new design ideas
  D. Exposes clients to new design ideas

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  Explanation

  Benchmarking involves comparing the client's system needs or expectations with other successful installations. This exposes clients to possibilities they may not have considered and helps refine their vision. "Benchmarking showcases what's possible and helps clients visualize their own needs in a more informed way." -CTS Exam Guide, Design Consultation and Benchmarking Practices

• Question 50:

  What is the difference between the audio system's operational level and the maximum level the system can attain?

  A. noise floor
  B. headroom
  C. directivity index
  D. loudspeaker sensitivity
  B. headroom

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  Explanation

  Headroom is the difference between the audio system's operational level and the maximum level the system can attain. It is the margin between the normal operating level and the maximum level before distortion occurs, allowing the system to handle peaks without clipping and ensuring clean audio performance.

  References:

  Audio engineering standards and guidelines, such as those provided by the Audio Engineering Society (AES), describe headroom as a critical parameter for ensuring high-quality audio reproduction.