Flight safety messages are:4
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A message concerning aircraft parts and material urgently required is:4
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Air traffic control messages (clearances, instructions, etc.) belong to the categoryof:4
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The message addressed to an Area Control Centre `request radar vectors to circumnavigate adverse weather` is:4
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The order of priority of the following messages in the aeronautical mobile service is:4
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The priority of the pilot's message `request QDM` is:4
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The message to an aeronautical ground station `please call a taxi-cab for us. We will arrive at 1045` is:4
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The priority of the instruction `taxi to runway 05` is:4
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The clearance: `cleared for immediate take-off runway 03` is:4
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What is the correct way of spelling out HB-JYC in a radio message?4
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