421 Window Clerk Exam 2026/2027 |
Latest Update | Practice Questions &
Answers | Guaranteed Pass
GIST - correct answer-Greeting Customers, Inquiring their needs, Suggesting
options best to the customers' needs and Thanking them for coming to the US
Postal Service
Processing Categories - correct answer-Letters, Flats, Machinable Parcels,
Irregular Parcels, and Outside Parcels.
Letter-Size Mail - correct answer-Rectangular, Between 3.5" to 6 1/8" high, 5" to
11.5" long and .007" to .25" thick. Max weight 3.5 oz
Postcards - correct answer-Rectangular, between 3.5" to 4.25" high, 5" to 6" long
and .007 to .016 thickness
, Flat-Size Mail - correct answer-Flexible, Uniformly thick, Rectangular, Minimum: 6
1/8" high OR more than 11.5" long, OR more than 1/4" thick. Maximum 12" high,
15" long and 3/4" thick. One of the minimum flat-size dimensions MUST exceed
maximum letter-size dimensions.
Machinable Parcels - correct answer-Must weigh at least 6 ounces but no more
than 25 pounds. High density parcels maximum weight is 15 pounds.(exception
for lightweight parcels)
Irregular Parcels - correct answer-Must have any one of the following
characteristics: Less than 6" in length, or less than 3" in height, or less than 6
ounces. Rolls and tubes 26" long or less. Unwrapped, paper-wrapped, or sleeve-
wrapped articles that are not letter size. And articles enclosed in envelopes that
are not letters, flats or machinable parcels.
Outside Parcels - correct answer-Length more than 27", or height than 17", or
thickness more than 17". Weight more than 25 pounds or 15 pounds if identified
as high density. Rolls and tubes longer than 26". Maximum weight for all parcels
in 70 pounds. However length and girth combined can be up to 130" for Standard
Post
Nonmachinable Surcharge - correct answer-First-Class Mail letters that will
receive the surcharge are considered if the following conditions exist: Too rigid,
contains pens, pencils, keys or coins that cause thickness of the mailpiece to be
uneven, is polybagged, polywrapped or has an exterior not made of paper.
Priority Mail Express - correct answer-Class of mail with the Guaranteed by End of
Day delivery(Next 1-day or 2-day), 365 days a year. Offers overnight delivery to
most locations or the customer gets their money back. Also delivery on Sundays
Latest Update | Practice Questions &
Answers | Guaranteed Pass
GIST - correct answer-Greeting Customers, Inquiring their needs, Suggesting
options best to the customers' needs and Thanking them for coming to the US
Postal Service
Processing Categories - correct answer-Letters, Flats, Machinable Parcels,
Irregular Parcels, and Outside Parcels.
Letter-Size Mail - correct answer-Rectangular, Between 3.5" to 6 1/8" high, 5" to
11.5" long and .007" to .25" thick. Max weight 3.5 oz
Postcards - correct answer-Rectangular, between 3.5" to 4.25" high, 5" to 6" long
and .007 to .016 thickness
, Flat-Size Mail - correct answer-Flexible, Uniformly thick, Rectangular, Minimum: 6
1/8" high OR more than 11.5" long, OR more than 1/4" thick. Maximum 12" high,
15" long and 3/4" thick. One of the minimum flat-size dimensions MUST exceed
maximum letter-size dimensions.
Machinable Parcels - correct answer-Must weigh at least 6 ounces but no more
than 25 pounds. High density parcels maximum weight is 15 pounds.(exception
for lightweight parcels)
Irregular Parcels - correct answer-Must have any one of the following
characteristics: Less than 6" in length, or less than 3" in height, or less than 6
ounces. Rolls and tubes 26" long or less. Unwrapped, paper-wrapped, or sleeve-
wrapped articles that are not letter size. And articles enclosed in envelopes that
are not letters, flats or machinable parcels.
Outside Parcels - correct answer-Length more than 27", or height than 17", or
thickness more than 17". Weight more than 25 pounds or 15 pounds if identified
as high density. Rolls and tubes longer than 26". Maximum weight for all parcels
in 70 pounds. However length and girth combined can be up to 130" for Standard
Post
Nonmachinable Surcharge - correct answer-First-Class Mail letters that will
receive the surcharge are considered if the following conditions exist: Too rigid,
contains pens, pencils, keys or coins that cause thickness of the mailpiece to be
uneven, is polybagged, polywrapped or has an exterior not made of paper.
Priority Mail Express - correct answer-Class of mail with the Guaranteed by End of
Day delivery(Next 1-day or 2-day), 365 days a year. Offers overnight delivery to
most locations or the customer gets their money back. Also delivery on Sundays
