AV Site Surveys Flashcards

During an AV site survey, you discover the ceiling is a suspended acoustic tile grid rated for 4 lbs per tile. A projector mount weighs 18 lbs. What is the correct action?

Answer: Span a support structure to structural elements above the drop ceiling before mounting

Any load exceeding the tile grid's rating must be transferred to structural elements above the drop ceiling using threaded rod or similar bridging hardware.

A site survey reveals an existing HVAC duct running directly through the planned projection path. Which document should capture this conflict for the design team?

Answer: Site survey report with annotated floor plan

Site survey reports with annotated floor plans document existing conditions and conflicts so the design team can adjust equipment placement or sightlines.

When measuring ambient light levels during an AV site survey, which unit of measure is most commonly recorded?

Answer: Foot-candles (fc) or lux

Ambient light at a surface is measured in foot-candles (fc) or lux using a light meter, which informs display brightness requirements.

A surveyor finds that a conference room has floor-to-ceiling glass walls on two sides. Which AV design concern does this primarily raise?

Answer: Excessive ambient light and potential glare on displays

Glass walls allow uncontrolled daylight ingress, causing glare and dramatically raising ambient light levels that compete with display brightness.

During a site survey for a large auditorium, you measure a reverberation time (RT60) of 3.2 seconds. What does this indicate for the audio system design?

Answer: Speech intelligibility will be poor and acoustic treatment or highly directional speakers are needed

An RT60 of 3.2 seconds is far too long for speech clarity; values above ~1.0 second in conference/presentation spaces significantly degrade intelligibility.

What is the primary reason an AV surveyor should verify the electrical panel capacity and available circuits during a site survey?

Answer: To ensure sufficient power is available for AV equipment without tripping breakers or sharing circuits with noisy loads

AV equipment requires dedicated, adequately rated circuits; sharing circuits with HVAC or lighting can cause noise, voltage drop, and reliability issues.

A site survey reveals 9-foot ceilings in a training room planned for an 84-inch flat-panel display. Which sightline concern should be documented?

Answer: The top of the display mounted at standard height may be too high for comfortable viewing from rear seats

With low ceilings and a large display, mounting height is constrained, and the top edge may exceed comfortable viewing angles for occupants in rear rows.