The backup flight instrument provides backup primary flight instrument indications in case of failure of the integrated avionics system.

• A. True
• B. False
• C. Not applicable
• D. Unknown

Answer: (A)

The main idea is redundancy: when the integrated avionics system fails, the backup flight instruments stand ready to give the pilot the essential flight data needed to fly safely. These backup instruments are independent from the primary glass cockpit or electronic displays, so they can still show critical information such as attitude (pitch and bank), airspeed, altitude, and often heading and turn rate. This allows the pilot to maintain control and situational awareness until the avionics are restored. That’s why the statement is true—the backup flight instrument set is designed specifically to provide these indications when the integrated system isn’t available.