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What instrument is used to measure the aircraft’s altitude during the approach phase?(a) Pressure altimeter(b) Radio altimeter(c) Sound altimeter(d) Infrared altimeter |
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Answer» Correct option is (b) Radio altimeter The best I can explain: A radio altimeter can accurately measure the altitude of an aircraft and works on the radar principle. Typically, radio altimeters provide accurate altitude measurements till 5000ft and are used only during takeoff and landing. |
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