Avionics Systems – Real-time Systems MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. What is the primary role of avionics real-time systems? (A) To perform batch-only computations (B) To store flight data for offline analysis (C) To manage and control aircraft functions with strict timing and safety requirements (D) To replace pilots entirely 2. Common examples of avionics real-time systems include: (A) Memory-only logging (B) CPU idle exclusively (C) Disk batch-only monitoring (D) Flight control systems, navigation systems, and autopilot systems 3. In avionics systems, timing constraints are critical because: (A) Memory-only operations (B) CPU idle exclusively (C) Disk batch-only tasks (D) Delays can compromise flight safety and aircraft stability 4. Flight control computers in aircraft are designed to: (A) Memory-only calculations (B) CPU idle exclusively (C) Disk batch-only operations (D) Execute control algorithms in real-time to maintain stability and performance 5. ARINC 653 standard is used in avionics real-time systems to: (A) Define partitioned RTOS for safety-critical applications (B) CPU idle exclusively (C) Disk batch-only management (D) Memory-only scheduling 6. Hard real-time tasks in avionics include: (A) Disk batch-only monitoring (B) CPU idle exclusively (C) Control surface actuation and autopilot computations (D) Memory-only operations 7. Soft real-time tasks in avionics include: (A) Passenger information displays and cabin lighting controls (B) CPU idle exclusively (C) Disk batch-only tasks (D) Memory-only operations 8. Redundancy in avionics real-time systems ensures: (A) Continuous operation despite hardware or software failures (B) CPU idle exclusively (C) Disk batch-only tasks (D) Memory-only backups 9. Sensor fusion in avionics combines data from: (A) Disk batch-only sources (B) CPU idle exclusively (C) Multiple sensors like gyroscopes, accelerometers, and GPS for accurate navigation (D) Memory-only data 10. Interrupts in avionics systems are used to: (A) Disk batch-only handling (B) CPU idle exclusively (C) Respond immediately to critical events like sensor signals or warnings (D) Memory-only signals 11. Avionics systems often use deterministic scheduling to: (A) Memory-only tasks (B) CPU idle exclusively (C) Disk batch-only scheduling (D) Guarantee that high-priority tasks meet deadlines 12. Fault-tolerant design in avionics includes: (A) Memory-only protection (B) CPU idle exclusively (C) Disk batch-only redundancy (D) Multiple redundant systems and voting mechanisms to maintain safety 13. CAN bus and ARINC 429 are examples of: (A) Real-time communication protocols used in aircraft systems (B) CPU idle exclusively (C) Disk batch-only networks (D) Memory-only communication 14. Avionics RTOS must provide: (A) Task scheduling, inter-task communication, and temporal isolation (B) CPU idle exclusively (C) Disk batch-only services (D) Memory-only management 15. Priority inversion in avionics can be prevented by: (A) Using priority inheritance or priority ceiling protocols (B) CPU idle exclusively (C) Disk batch-only methods (D) Memory-only techniques 16. Autopilot systems rely on real-time data from: (A) Disk batch-only logs (B) CPU idle exclusively (C) Sensors, navigation systems, and flight computers (D) Memory-only inputs 17. Timing jitter in avionics tasks must be minimized to: (A) Maintain precise control and stability of the aircraft (B) CPU idle exclusively (C) Disk batch-only tasks (D) Memory-only scheduling 18. Avionics systems often include watchdog timers to: (A) CPU idle exclusively (B) Detect and recover from software or hardware failures (C) Disk batch-only monitoring (D) Memory-only safety 19. Task partitioning in avionics helps to: (A) Memory-only isolation (B) CPU idle exclusively (C) Disk batch-only partitioning (D) Isolate critical tasks from less critical or non-critical tasks 20. The main advantage of real-time avionics systems is: (A) CPU idle exclusively (B) Safe, predictable, and reliable operation of aircraft under strict timing constraints (C) Disk batch-only optimization (D) Memory-only efficiency Related Posts:Avionics Engineering MCQsOperating systems (OS), Examples of operating systems, Advantages of operating systemsAdaptive Real-time Systems – Real-time Systems MCQsHard vs Soft Real-time Systems - Real-time Systems MCQsReal-time vs General-purpose Systems - Real-time Systems MCQsFieldbus Systems - Real-time Systems MCQs