Which statement about guard frequencies is true?

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Multiple Choice

Which statement about guard frequencies is true?

Guard frequencies are a backup communications channel in aviation; they function as secondary control rather than the primary link. They’re kept on standby for emergencies or when the primary frequency is unusable, allowing pilots and air traffic control to maintain contact even in trouble. That’s why this statement is the best fit: guard frequencies serve as a reserve, not the main line of control. They aren’t never used—far from it, they’re actively used in distress or when the main channel fails. They aren’t always the primary channel, which is exactly what being secondary emphasizes. And they aren’t managed by something called marshal control—guard channels are defined and monitored under aviation authority procedures and emergency communication protocols.

Guard frequencies are a backup communications channel in aviation; they function as secondary control rather than the primary link. They’re kept on standby for emergencies or when the primary frequency is unusable, allowing pilots and air traffic control to maintain contact even in trouble. That’s why this statement is the best fit: guard frequencies serve as a reserve, not the main line of control. They aren’t never used—far from it, they’re actively used in distress or when the main channel fails. They aren’t always the primary channel, which is exactly what being secondary emphasizes. And they aren’t managed by something called marshal control—guard channels are defined and monitored under aviation authority procedures and emergency communication protocols.

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