What parameters do environmental sensors monitor in avionics, and why?

What parameters do environmental sensors monitor in avionics, and why?

• A. Altitude, airspeed, and vertical speed to ensure flight performance.
• B. Temperature, humidity, vibration, and shock monitor to protect equipment and ensure reliability.
• C. Power supply voltage and current to track consumption.
• D. Wind speed and direction to optimize routing.

Answer: (B)

Environmental sensors in avionics focus on the conditions that can affect electronic equipment. They monitor temperature, humidity, vibration, and shock because these factors directly influence reliability and longevity: temperature extremes can alter electrical performance and accelerate wear; humidity can cause moisture-related corrosion or short circuits; vibration and shock can loosen connections, crack solder joints, or create intermittent faults. By tracking these parameters, the system helps keep equipment within safe operating limits, triggers alarms, and supports protective actions or maintenance to prevent failures. The other options describe flight performance data, power usage, or external weather, which are not the environmental conditions those onboard sensors are designed to monitor for protecting avionics gear.

Environmental sensors in avionics focus on the conditions that can affect electronic equipment. They monitor temperature, humidity, vibration, and shock because these factors directly influence reliability and longevity: temperature extremes can alter electrical performance and accelerate wear; humidity can cause moisture-related corrosion or short circuits; vibration and shock can loosen connections, crack solder joints, or create intermittent faults. By tracking these parameters, the system helps keep equipment within safe operating limits, triggers alarms, and supports protective actions or maintenance to prevent failures. The other options describe flight performance data, power usage, or external weather, which are not the environmental conditions those onboard sensors are designed to monitor for protecting avionics gear.