When must DME Hold be selected during flight?

Prepare for the PSA Airlines Canadair Regional Jet Systems Exam. Study with comprehensive flashcards and multiple choice questions, each with hints and explanations. Get ready to excel!

The selection of DME Hold is crucial during approaches that involve fixes identified by DME (Distance Measuring Equipment) from another navigation source. This is because DME Hold allows the aircraft to maintain a specific distance from a defined point instead of navigating towards it. By engaging DME Hold in such situations, pilots can effectively manage their position and distance to ensure the aircraft remains safely in line with the approach path, particularly when the navigation source being used provides distance information that may not directly correlate with the aircraft's lateral position.

In contrast, the other scenarios do not specifically necessitate DME Hold. While flying above 10,000 feet, over water, or cruising at high altitude may involve various navigation considerations, they do not inherently require the selection of DME Hold, as they are more related to general altitude management and navigation practices rather than the specific use of DME for maintaining defined distances during approach procedures.

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