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Character Transposition Errors Flashcards

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

Read the first 7 Character Transposition Errors flashcards as text

  1. A letter is addressed to '5512 Cherrywood Ct' but the database shows '5521 Cherrywood Ct'. What error is present?

    Answer: House number digits '1' and '2' were transposed

    The house number 5521 shows digits '2' and '1' transposed compared to the correct 5512.

  2. Which of the following is NOT a transposition error?

    Answer: 'Denver' entered as 'Denvor'

    'Denvor' replaces 'e' with 'o', which is a substitution error, not a transposition.

  3. An OCR machine reads apartment number 'Apt 61B' as 'Apt 16B'. The error type is:

    Answer: Character transposition — digits '6' and '1' swapped positions

    OCR transposed digits '6' and '1', reading 16 instead of the correct 61.

  4. Mail is sent to 'Ms. Sahra Thompson' when the correct name is 'Ms. Sarah Thompson'. What occurred?

    Answer: Letters 'a' and 'h' were transposed in 'Sarah'

    'Sarah' became 'Sahra' because letters 'a' and 'h' (positions 3 and 4) were swapped.

  5. Which ZIP code pair shows a transposition error?

    Answer: Correct: 94102 — Entered: 94120

    94102 vs 94120 shows digits '0' and '2' transposed in the last two positions.

  6. A delivery notice shows 'Rte 9W' but should read 'Rte W9'. In sorting, this causes:

    Answer: A transposition error that could misdirect the piece

    Swapping '9' and 'W' creates a transposition that changes the route identifier and can misdirect mail.

  7. A sorter catches '214 Elm St' filed under '241 Elm St'. The employee should:

    Answer: Flag as a transposition error affecting the house number

    House numbers 214 and 241 differ by a digit transposition ('1' and '4' swapped) and must be flagged.