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Numerical Memory and Differences Flashcards

7 cards from real ATSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Numerical Memory and Differences flashcards as text

  1. A controller remembers six aircraft altitudes: 7,000; 9,000; 8,500; 10,000; 6,500; 11,000. How many are above 8,000 ft?

    Answer: 3

    Altitudes above 8,000 ft: 9,000; 8,500; 10,000; 11,000 — that is 4 aircraft.

  2. A number string 74836 is shown. What is the product of the first digit and the last digit?

    Answer: 28

    First digit is 7 and last digit is 6; 7 × 6 = 42.

  3. Two aircraft are separated by 30 nautical miles. Aircraft A is traveling at 450 knots toward Aircraft B, which is stationary. In how many minutes will they be 15 nm apart?

    Answer: 2 min

    At 450 knots, 15 nm is covered in 15/450 × 60 = 2 minutes.

  4. You are given four codes to remember: 3315, 3351, 3135, 3153. Which code has the digit 5 in position 3?

    Answer: 3351

    In 3351, the digits are 3,3,5,1 — position 3 is 5.

  5. An aircraft's altitude readout changes from 35,000 ft to 34,700 ft. What is the magnitude of the change?

    Answer: 300 ft

    35,000 minus 34,700 equals 300 feet.

  6. A strip shows four different runway headings: 090°, 270°, 180°, 360°. Which two headings are reciprocals of each other — i.e., differ by exactly 180°?

    Answer: 090° and 270°

    090° and 270° differ by exactly 180°, making them reciprocal runway headings.

  7. A sequence of beacon codes is transmitted: 1276, 1267, 1726, 1762. Which code is an exact reversal (mirror) of 2671?

    Answer: 1267

    Reversing 2671 gives 1762; however 1267 reversed is 7621 — the exact reversal of 2671 is 1762.