NEW EXAM ACTUAL PRACTICE QUESTIONS AND ANSWERS
2022 UPDATE
The maximum height of any vehicle outside of a commercial zone on designated
highways plus 10 miles therefrom - ✓✓✓14 feet
The maximum height of any vehicle in a commercial zone - ✓✓✓15 feet
The maximum height on all other highways - ✓✓✓13 1/2 feet
Maximum width of any vehicle - ✓✓✓8 1/2 feet
Capacity to be a commercial zone - ✓✓✓Commercial zones exist only in cities with a
population of 75,000 or more.
Commercial zone - ✓✓✓The commercial zone is one mile beyond the city limits, plus
one mile for every 50,000 residents or portion thereof, except for a few cities.
The commercial zone for St. Louis - ✓✓✓Extends 18 miles beyond the city limits.
The commercial zone for Kansas City - ✓✓✓Extends 12 miles beyond the city limits and
includes the city of Herrisonville.
The commerical zones for Springfield, St. Joseph, and Columbia - ✓✓✓Extend only 2
miles beyond the city limits.
Maximum length for any single vehicle - ✓✓✓45 feet
Maximum length for any bus or trackless trolley coach not including one foot in front and
back for safety bumper - ✓✓✓45 feet
Page 1 of 7
, Maximum length of truck-tractor and semi-trailer upon interstates and certain designated
highways the length of the semi-trailer (no overall maximum length, includes load). -
✓✓✓53 feet
Maximum length of truck-tractor and semi-trailer upon all other roads - ✓✓✓60 feet
Maximum length of truck-tractor, semi-trailer, and trailer combinations (double bottoms)
upon interstates and certain designated highways the length of the semi-trailer (no
overall maximum length) - ✓✓✓28 feet
Maximum length of truck-tractor, semi-trailer, and trailer combinations (double bottoms)
upon all other roads - ✓✓✓65 feet
Maximum length of truck and trailer(s) and all other combinations of vehicles upon
interstates and certain primary highways - ✓✓✓65 feet
Maximum length of truck and trailer(s) and all other combinations of vehicles upon all
other roads - ✓✓✓55 feet
Maximum length of Automobile Transporters and Boat Transporters including
Conventional 5th Wheel and Stingersteered - ✓✓✓75 feet (for combination unit plus 3
feet front to 4 feet overhang)
Maximum length of Driveaway Saddle Mount Combinations (Double or Triple on
interstate and designated highways) - ✓✓✓97 feet
Motor vehicle carriers may carry loads that extend beyond their legal length limits, but
loads must not extend more than 3 feet beyond the front or 4 feet beyond the rear of the
vehicle. - ✓✓✓True
Exemptions from size limits (excluding interstate highways) - ✓✓✓1. Farm machinery
driven occasionally for short distances
2. Vehicles temporarily transporting farm machinery.
3. Implement dealers delivering or moving farm machinery for repair.
Page 2 of 7