AVIXA Updated CTS Exam Questions and Answers by sonia

A high visibility vest is an example of Personal Protective Equipment (PPE), which is worn to increase safety by making the wearer more visible on-site, particularly in low-visibility or high-traffic areas.

CTS Technology Specialist ReferenceCTS materials emphasize the use of PPE, such as high visibility vests, to enhance safety in environments where AV technicians work around other trades or equipment.

Projection screens should be positioned to avoid obstructing alarm indicators, clocks, and light switches, as these are critical elements within a room that need to remain accessible and visible. Ensuring they are not blocked helps maintain safety and usability within the space.

CTS Technology Specialist ReferenceAs per CTS guidelines, projection screen placement should consider accessibility and visibility of room elements critical to operation and safety, like alarms and controls.

An SPL (Sound Pressure Level) meter is commonly used during a site survey to measure the ambient noise level in a room. This measurement provides a baseline for audio system design, ensuring that the sound reinforcement system can deliver adequate volume levels above the background noise.

CTS Technology Specialist ReferenceAccording to CTS materials, assessing ambient noise levels with an SPL meter is a standard step in designing sound systems, especially in environments where speech intelligibility is critical.

The contrast control on a display adjusts the range for the difference between white and black. Increasing the contrast makes the whites brighter and the blacks darker, enhancing the overall clarity and sharpness of the image. Proper contrast settings are vital for ensuring that the image displayed is visually appealing and easy to interpret, especially in varying lighting conditions.

References:

Axis Communications - Display Settings and Calibration

AV Technology Standards