Which display would show the VAR NR caution when torque split exceeds threshold?

• A. CAD
• B. MFD
• C. PFD
• D. HUD

Answer: (A)

The key idea is where cautions and advisories are shown in the cockpit. A VAR NR caution signaling that torque split has exceeded its threshold is a system warning that pilots need to notice quickly and act on, without it distracting normal flight data. The dedicated caution/advisory display (CAD) is designed exactly for this purpose: it centralizes non-emergency warnings so the crew can see and respond to them promptly.

The primary flight display shows attitude, airspeed, and altitude and isn’t meant to carry system warnings. The multifunction display can show system pages, but cautions are routed to the CAD to ensure consistent, prioritized annunciations. The head-up display focuses on flight path and minimal alerts, not a full caution list.

So, the VAR NR caution is best shown on the CAD because it’s the centralized place for such alerts, helping the crew recognize and react to system warnings efficiently.