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Radio altimeters are used up to ___________

(a) 2500 feet

(b) 3000 feet

(c) 250 feet

(d) 300 feet

This question was addressed to me in a job interview.

I need to ask this question from Instrument Shop in division Instrument Shop of Aircraft Maintenance

1 Answer

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Best answer
Correct option is (a) 2500 feet

Easy explanation: Radio altimeters give data to the auto throttle which is a part of the Flight Computer. Radio altimeters only give readings up to 2,500 feet above ground level. Above 2,500 feet, other systems are used to determine the fight altitude.

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