CTS AV Site Surveys 3

Question 1

During a site survey, you notice the planned display wall receives direct sunlight from south-facing windows for several hours each afternoon. What is the BEST design response?

Accepted Answer

Specify a high-brightness direct-view LED or LCD panel with anti-reflective coating

Answer

Specify a projector instead of a flat panel

Answer

Install the display on the adjacent north wall

Answer

Reduce the display size to minimize reflections

Question 2

What does RT60 measure, and why is it recorded during an AV site survey?

Accepted Answer

The time (in seconds) for sound to decay 60 dB after a source stops — used to assess room acoustics

Answer

The time for a signal to travel 60 feet — used to calculate audio delay

Answer

The refresh rate threshold for 60 Hz video systems

Answer

The 60-ohm impedance reference for microphone circuits

Question 3

On a site survey sketch, you mark a symbol indicating an existing wall penetration (sleeve). What critical information should accompany this marking?

Accepted Answer

The sleeve's inner diameter, estimated length through the wall, and fire-rating of the wall assembly

Answer

The wall's paint color and finish

Answer

The age of the building construction

Answer

The location of the nearest fire sprinkler

Question 4

A site survey identifies that the planned rack room has no dedicated air conditioning and relies on building HVAC only. Equipment in the rack dissipates 4,200 BTU/hr total. What action should the AV designer take?

Accepted Answer

Document the heat load and recommend a dedicated rack-cooling solution or room air conditioner to the client

Answer

Proceed as planned; building HVAC is always adequate

Answer

Reduce the equipment list until the heat load is under 1,000 BTU/hr

Answer

Install larger ventilation fans in the rack only

Question 5

When measuring a room for display sizing per AVIXA DISCAS standards, what is the formula for calculating the maximum viewing distance for a display?

Accepted Answer

Maximum distance = display height × 8

Answer

Maximum distance = display width × 4

Answer

Maximum distance = display diagonal × 6

Answer

Maximum distance = display width × 10

Question 6

During a site survey, you find that the existing network infrastructure uses CAT5e cabling. The AV design requires HDBaseT transmission at 4K/UHD resolution. What should you advise the client?

Accepted Answer

CAT5e may support HDBaseT 4K at reduced distances; CAT6A is recommended for reliable 100-meter 4K HDBaseT runs

Answer

CAT5e fully supports HDBaseT 4K with no limitations

Answer

HDBaseT 4K requires fiber optic cable only

Answer

CAT5e must be replaced with HDMI cables for 4K