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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 reads off four altitudes in sequence: 8,500 ft, 7,200 ft, 9,100 ft, 6,800 ft. Which altitude was third in the sequence?

    Answer: 9,100 ft

    The third altitude read in the sequence was 9,100 ft.

  2. Two aircraft report headings of 275° and 247°. What is the difference between these headings?

    Answer: 28°

    275 minus 247 equals 28 degrees.

  3. A strip shows squawk codes 4521, 4251, 4512, and 4215. Which code contains the digits 2, 5, 1, and 4 in that exact order?

    Answer: 4251

    Code 4251 contains the digits 4, 2, 5, 1 — the only code whose second digit is 2 and third digit is 5.

  4. An aircraft's transponder code changes from 3367 to 3376. Which two digit positions swapped?

    Answer: Digits 3 and 4

    Positions 3 and 4 changed from 6,7 to 7,6 — the last two digits were transposed.

  5. You memorize five frequencies: 118.3, 121.5, 119.7, 125.2, 120.8. Which frequency is highest?

    Answer: 125.2

    125.2 MHz is the highest of all five frequencies listed.

  6. A data block shows speed as 342 knots. Later it reads 324 knots. By how many knots has the speed changed?

    Answer: 18 knots

    342 minus 324 equals 18 knots.

  7. Three flight levels are given: FL240, FL270, FL250. Which is the middle value when sorted in ascending order?

    Answer: FL250

    Sorted ascending: FL240, FL250, FL270 — FL250 is in the middle.