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Which of the following best describes an electret, when used in a microphone?
If the measured power in a circuit is 5W, and the current is 1.5 amps, what is the voltage?
What are key considerations when determining projector placement? (Choose all that apply.)
A _____ creates mechanical connections of the cables or circuit, like an on/off light switch. It creates a visible "glitch" in the video program.
The permissible area for one cable in a conduit is limited to _____ percent of the conduit area.
Which of the following are HDCP authentication steps? (Choose all that apply.)
The total impedance of a circuit wired in series is represented by the formula _____.
When mounting a 75 lb projector with a 15 lbs mount, the substructure should be able to support a minimum of?
As light increases, _____ kicks in and adjusts until it has closed to its maximum.
During which phases of an AV project should performance verification be conducted? (Choose all that apply.)
Which of the following statements is a true safety practice for mounting loudspeakers?
Which of the following is the AV team likely to perform during new construction?
What document is used to account for lost time due to other trades during a project?
What assumptions should you make about an audio system when there is no audio output? (Choose all that apply.)
The difference between the loudest and quietest levels of an audio signal is the:
When installing a wireless microphone receiver, what should you do with the antennas?
After adjusting system equalization using the best tools available, you should: (Choose all that apply.)
A customer has recently added a second wireless microphone to an existing system. The customer now complains that the sound quality from both microphones has degraded. Of the following, which is the MOST LIKELY cause for the problem?
To avoid power and grounding issues, any audio cable longer than 15 feet (4.6 meters) should use _______.
Which of the following are associated with sound pressure levels? (Choose all that apply.)
Which of the following documents should an AV integrator submit in the event that a manufacturer has discontinued a projector model?
What is industry best practice for ensuring that all equipment has been delivered to the site for an AV event?
What device is used to verify the signal integrity throughout a video system?
In the conduit capacity formula, the two symbols used are ___ diameter of the conduit and ____ diameter of the cable.
_________ are used to limit the impact of extreme sound pressure spikes, such as a dropped microphone.
What best describes the method of transmission of a typical wireless microphone?
In a rear projection system, light rays which reflect off the backside of the screen and strike the mirror more than once create _____.
In a _____ loudspeaker circuit, you will connect a positive wire from an amplifier to another positive wire on each of the loudspeakers in the circuit.
The _____ microphone has a long and narrow polar pattern, and is often used in film and television.
Checking an electrical system for a _____ should only be performed with the aid of a qualified electrician.
How would a commissioning technician establish substantial completion/practical completion?
Before entering a construction site, safety coordination and requirements should be discussed with the:
Determine the wattage in a circuit measuring 120 volts with 15 amperes of current flow.
Which set of drawings should you reference to view the ductwork that goes through the building?
Before decommissioning a system where existing components will be reused, the AV technician should:
Wavelength and frequency determine the __________ of sound, while amplitude determines the __________.
A complete audio signal path begins with acoustical energy and ends with _____ energy.
Which type of conduit is the best choice for an electronically noisy environment because it offers physical and EMI protection?
What CLI command would you use to discover the IP address of a device you are currently using?
What are typical applications of a distributed loudspeaker system? (Choose all that apply.)
What is a benefit of using the verification standard for system closeout? (Choose all that apply.)
Which of the following information does the EDID packet contain? (Choose all that apply.)
Which of the following are parts of an IP address for a networked device? (Choose all that apply.)
____ isolates and protects a signal from sources of electromagnetic and radio frequency interference.
When mounting a projector to the ceiling, one must identify the center point location of the mounting assembly, because:
What type of drawing would you use to find out exactly how the projector should be mounted to the ceiling?
The simultaneous use of multiple wireless microphone systems requires _________.
Which component would you use to distribute video from multiple sources to many displays or in different zones?
Which of the following should a maintenance log include? (Choose all that apply.)
Which of the following can be used to automatically turn off unused microphones?
How often should your toolbox multimeter be sent to an accredited testing laboratory for recalibration?
Which of the following is the most important consideration during the installation of AV systems in a client-occupied space?
Soldering is the process of joining two conductive components in a way that ____.
Where should you place the wireless microphone receiver antenna in a rack assembly?
HDCP is capable of working over which of the following interfaces? (Choose all that apply.)
Many amplifiers now have a built-in _______ to protect themselves from severe clipping and overdriving of the audio signal.
An architectural drawing was created using the SI scale of 1:200. You measure a distance of 13 millimeters on the drawing. What is the actual distance in millimeters?
Half the wraps on one side, twice the wraps on the next side, this is an example of a:
When pulling cable through ceilings without the use of conduit you should:
A "just noticeable" change in sound pressure level, either louder or softer, requires a _____ change.
There are three loudspeakers wired in parallel, and each loudspeaker's impedance is 8 ohms. Calculate the impedance of this circuit.
What is the total impedance (rounded) of 10 loudspeakers tapped at 7.5 watts each in a 70v distributed system?
If a display with mounting hardware weighs 150 lb (68kg), you should use mounting criteria that will handle ____.
What is an advantage of using an adjustable ceiling mount support structure?
Once an audio signal has left a microphone, what processor will it encounter first?
Why is it a good idea for the AV installer to provide end-user training on a new system?
Which statement accurately describes what you should do when de-installing existing equipment?
Why is a plumb bob used during the installation process for a ceiling mounted projector?
TESTED 08 Oct 2025