Certified Technology Specialist (CTS) Practice Exam

What is one limitation of fluorescent lighting for AV applications?

1. High energy consumption

2. Interference with infrared receivers

3. Inability to produce white light

4. Limited lifespan

The correct answer is: Interference with infrared receivers

One limitation of fluorescent lighting in AV applications is its interference with infrared receivers. Fluorescent lights can emit electromagnetic interference (EMI) and flicker frequencies that may disrupt the signals sent by infrared remote controls. In audiovisual settings where precise control over devices is necessary, such as projectors or sound systems that utilize infrared communication, this interference can lead to unresponsive actions or operational difficulties. The other options, while highlighting potential issues in different contexts, do not specifically address the critical impact on AV applications. For instance, although fluorescent lighting typically has a longer lifespan compared to incandescent bulbs, it may not match the longevity of newer technologies like LED lighting. Similarly, the claim about energy consumption might not be entirely accurate, as fluorescent bulbs are often more energy-efficient compared to incandescent lighting. Lastly, the ability to produce white light is generally not a limitation of fluorescent lamps, as they are designed to generate a range of white light options.