What does the term "cross-checking" mean in relation to cockpit instruments?

• A. Using one instrument alone for guidance
• B. Alternating between visual and instrument flight rules
• C. Scanning multiple instruments to confirm the accuracy of indications
• D. Flying with minimal reliance on instruments

Answer: (C)

The term "cross-checking" in relation to cockpit instruments refers to scanning multiple instruments to confirm the accuracy of indications. This practice is essential for pilots to ensure that the information they are receiving is consistent and reliable. By analyzing the readings from different instruments, pilots can detect anomalies or errors, thus reducing the likelihood of making decisions based on inaccurate data.

Cross-checking helps maintain situational awareness, especially in complex flight regimes or adverse conditions where a single instrument may provide misleading information. For instance, if an altimeter reading appears inconsistent with the vertical speed indicator, a pilot can investigate further to understand the true altitude and rate of climb or descent. This method of verification enhances safety and aids in making informed decisions in the cockpit.