USPS Omission and Insertion Errors 2

Question 1

Original: '4821 Westbrook Lane, Denver, CO 80203'. Copy: '4821 Westbrook Lane, Denver, CO 8023'. What error exists in the copy?

Accepted Answer

A digit was omitted from the ZIP code

Answer

The ZIP code '8023' is missing the zero, making it only 4 digits instead of the correct 5-digit '80203'.

Question 2

Original: 'Mr. James Holloway'. Copy: 'Mr. James Hollloway'. Which type of error appears in the copy?

Accepted Answer

Insertion of an extra letter

Answer

The copy has 'Hollloway' with three l's, meaning an extra 'l' was inserted into the last name.

Question 3

Original: '319 Elm Street Apt 7B, Atlanta, GA 30301'. Copy: '319 Elm Street, Atlanta, GA 30301'. What is missing from the copy?

Accepted Answer

The apartment number

Answer

The apartment designation 'Apt 7B' was omitted entirely from the copy, which could cause delivery failure.

Question 4

A clerk copies '7702 Pine Ave' as '77702 Pine Ave'. This is an example of:

Accepted Answer

Insertion error — an extra digit was added

Answer

The copy '77702' has five digits instead of four, meaning an extra '7' was inserted into the street number.

Question 5

Original: 'Sacramento, CA 95814-3201'. Copy: 'Sacramento, CA 95814-321'. The copy contains:

Accepted Answer

A missing digit in the ZIP+4 extension

Answer

The ZIP+4 extension should have four digits ('3201') but the copy shows only three ('321'), omitting the final digit.

USPS Error Detection Test Practice Test