USPS Suite and Apartment Number Errors 1 — Questions and Answers
Question 1: Compare the two address entries and identify any error: Entry 1: 450 Maple Ave, Apt 3B, Boston, MA 02101 Entry 2: 450 Maple Ave, Apt 3D, Boston, MA 02101
- The entries are identical
- There is an error in the street number
- There is an error in the apartment number (Correct answer)
- There is an error in the ZIP code
Correct answer: There is an error in the apartment number
Entry 1 shows 'Apt 3B' while Entry 2 shows 'Apt 3D,' indicating a letter substitution error in the apartment designation.
Question 2: Which type of error is present when comparing 'Apt 7' with 'Apt 17'?
- Transposition error
- Omission error
- Insertion error (Correct answer)
- Substitution error
Correct answer: Insertion error
An insertion error occurs when an extra character is added; 'Apt 17' contains an inserted digit '1' not present in 'Apt 7.'
Question 3: A data entry clerk copies an address record: Original: 1234 Oak Street, Suite 200, Chicago, IL 60601 Copy: 1234 Oak Street, Suite 2000, Chicago, IL 60601 What type of error was made?
- Transposition error in the suite number
- Insertion error in the suite number (Correct answer)
- Omission error in the street number
- The records are identical
Correct answer: Insertion error in the suite number
An extra zero was inserted into the suite number, changing '200' to '2000,' making this an insertion error.
Question 4: Compare these two mailing records: Record 1: 789 Elm Street, Floor 3, Room 14, New York, NY 10001 Record 2: 789 Elm Street, Floor 3, Room 41, New York, NY 10001 The discrepancy is:
- A transposition error in the floor number
- An omission error in the room number
- A transposition error in the room number (Correct answer)
- The records are identical
Correct answer: A transposition error in the room number
The room number '14' in Record 1 becomes '41' in Record 2, with digits 1 and 4 switched in position — a classic transposition error.
Question 5: When comparing suite numbers in two address records, which pair represents a transposition error?
- Suite 301 vs Suite 310 (Correct answer)
- Suite 301 vs Suite 3010
- Suite 301 vs Suite 302
- Suite 301 vs Suite 31
Correct answer: Suite 301 vs Suite 310
In 'Suite 310,' the digits 0 and 1 from 'Suite 301' have been switched in position, which is the definition of a transposition error.
Question 6: In USPS address verification, what is the term for the apartment, suite, or unit number component of an address?
- Primary address line
- Secondary address unit designator (Correct answer)
- Delivery point barcode
- ZIP+4 extension
Correct answer: Secondary address unit designator
The USPS uses 'secondary address unit designator' to refer to apartment, suite, unit, or other sub-building identifiers in a mailing address.
Question 7: Compare these two entries: Entry A: 5520 Harbor Dr, Unit 4C, Miami, FL 33101 Entry B: 5520 Harbor Dr, Unit 4G, Miami, FL 33101 What is the error?
- Transposition error in the unit number
- Insertion error in the unit designation
- Letter substitution error in the unit designation (Correct answer)
- The entries are identical
Correct answer: Letter substitution error in the unit designation
The letter 'C' in Entry A has been replaced with 'G' in Entry B, making this a substitution error in the unit's letter designation.
USPS Suite and Apartment Number Errors 1
Compare the two address entries and identify any error:
Entry 1: 450 Maple Ave, Apt 3B, Boston, MA 02101
Entry 2: 450 Maple Ave, Apt 3D, Boston, MA 02101