Missouri Class E License Exam Chapter 15

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Questions and Answers

What is the maximum height of any vehicle outside of a commercial zone on designated highways plus 10 miles therefrom?

14'

What is the maximum height of any vehicle in a commercial zone?

15'

What is the maximum height on all other highways?

13.5'

What is the maximum width allowed on any vehicle?

<p>8.5'</p> Signup and view all the answers

Commercial zones exist only in cities with a population of how many?

<p>75,000 or more</p> Signup and view all the answers

The commercial zone is _____ mile(s) beyond the city limits plus one mile for every ______ resident(s) or portion thereof.

<p>1 mile, 50,000 residents</p> Signup and view all the answers

How many miles does the commercial zone for St. Louis City extend beyond the city limits?

<p>18 miles</p> Signup and view all the answers

How many miles does the commercial zone for Kansas City extend beyond the city limits?

<p>12 miles</p> Signup and view all the answers

The commercial zones for Springfield, St. Joseph, and Columbia extend only how many miles beyond the city limits?

<p>2 miles</p> Signup and view all the answers

The commercial zone on interstate highways extends only how many miles beyond the city limits?

<p>2 miles</p> Signup and view all the answers

What is the maximum length of any single vehicle?

<p>45'</p> Signup and view all the answers

What is the maximum length of any bus or trackless trolley coach not including one foot in the front and back for safety bumper?

<p>45'</p> Signup and view all the answers

What is the maximum length of truck-tractor and semi-trailer upon interstates and certain designated highways?

<p>53'</p> Signup and view all the answers

What is the maximum length of truck-tractor and semi-trailer upon all other roads?

<p>60'</p> Signup and view all the answers

What is the maximum length of truck-tractor, semi-trailer, and trailer combinations upon interstates and certain designated highways?

<p>28'</p> Signup and view all the answers

What is the maximum length of truck-trailer, semi-trailer, and trailer combinations upon all other roads?

<p>65'</p> Signup and view all the answers

What is the maximum length of truck and trailer(s) and all other combination vehicles upon interstates and certain primary highways?

<p>65'</p> Signup and view all the answers

What is the maximum length of truck and trailer(s) and all other combination vehicles upon all other roads?

<p>55'</p> Signup and view all the answers

What is the maximum length of automobile transporters and boat transporters - conventional 5th wheel and stinger-steered?

<p>75' (for combination unit plus 3' front to 4' rear overhang)</p> Signup and view all the answers

What is the maximum length of Driveaway Saddle Mount Combinations (double or triple on interstate and designated highways)?

<p>97'</p> Signup and view all the answers

Motor vehicle carriers may carry loads that extend beyond their legal length limits by how much?

<p>3' beyond the front and 4' beyond the rear</p> Signup and view all the answers

What are the exemptions from size limits?

<ol> <li>farm machinery driven occasionally for short distances, 2. vehicles temporarily transporting farm machinery, 3. implement dealers delivering or moving farm machinery for repair, 4. vehicles temporarily transporting road-making machines or road materials, 5. vehicles towing disabled vehicles for repair on highways.</li> </ol> Signup and view all the answers

What is the maximum weight on any single axle allowed on interstates?

<p>20,000 pounds</p> Signup and view all the answers

What is the maximum weight on any single axle allowed in a commercial zone?

<p>22,400 pounds</p> Signup and view all the answers

What is the maximum weight on any single axle allowed on all other routes?

<p>22,000 pounds</p> Signup and view all the answers

What is the maximum weight on any tandem axle allowed on interstates?

<p>34,000 pounds</p> Signup and view all the answers

What is the maximum weight on any tandem axle allowed on all other routes?

<p>36,000 pounds</p> Signup and view all the answers

Actual gross weight allowed depends on the distance from _______ to _______.

<p>the first axle to the last axle</p> Signup and view all the answers

To determine the maximum gross weight allowed in a commercial zone, multiply the number of axles by what?

<p>22,400 pounds</p> Signup and view all the answers

What is the maximum gross weight allowed on interstates, primary and other designated highways?

<p>80,000 pounds</p> Signup and view all the answers

Where do you apply for an over-dimension and overweight permit?

<p>Missouri Department of Transportation, Motor Carrier Services Unit</p> Signup and view all the answers

To receive an oversize or overweight permit...

<ol> <li>the load on your vehicle must be non-reducible</li> </ol> Signup and view all the answers

Flashcards

Max vehicle height (commercial zones)

15 feet

Max vehicle height (non-commercial zones)

14 feet

Max vehicle height (other highways)

13.5 feet

Max vehicle width

8.5 feet

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Commercial zone population threshold

75,000 or more

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Commercial zone extension (base)

1 mile beyond city limits

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Commercial zone extension (additional)

1 mile for every 50,000 residents

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Max single vehicle length

45 feet

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Max bus/trackless trolley length

45 feet

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Max truck-tractor/semi-trailer length (interstate)

53 feet

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Max truck-tractor/semi-trailer length (other roads)

60 feet

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Max double bottom (interstate) length

28 feet

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Max double bottom (other roads) length

65 feet

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Max truck/trailer (interstate & primary) length

65 feet

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Max truck/trailer (other roads)

55 feet

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Max auto/boat transporter length

75 feet

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Max Driveaway Saddle Mount length

97 feet

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Load extension (front)

3 feet

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Load extension (rear)

4 feet

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Single axle max weight (interstate)

20,000 pounds

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Single axle max weight (commercial zone)

22,400 pounds

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Single axle max weight (other routes)

22,000 pounds

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Permit application location

Missouri Department of Transportation, Motor Carrier Services Unit

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Weight calculation basis

Distance between first and last axle

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Study Notes

Maximum Dimensions for Vehicles

  • Maximum vehicle height outside commercial zones on designated highways: 14'.
  • Maximum vehicle height within commercial zones: 15'.
  • Maximum vehicle height on all other highways: 13.5'.
  • Maximum vehicle width for any vehicle: 8.5'.

Commercial Zone Information

  • Commercial zones exist in cities with a population of 75,000 or more.
  • The commercial zone extends 1 mile beyond city limits plus 1 mile for every 50,000 residents.
  • St. Louis City's commercial zone extends 18 miles beyond city limits.
  • Kansas City's commercial zone extends 12 miles, including Harrisonville.
  • Commercial zones for Springfield, St. Joseph, and Columbia extend 2 miles beyond city limits.
  • Commercial zones on interstate highways extend 2 miles beyond city limits.

Vehicle Length Regulations

  • Maximum length of any single vehicle: 45'.
  • Maximum length of buses or trackless trolley coaches (excluding bumper): 45'.
  • Maximum length for truck-tractor and semi-trailer on interstates: 53'.
  • Maximum length for truck-tractor and semi-trailer on all other roads: 60'.
  • Double bottoms (truck-tractor, semi-trailer, trailer combinations) on interstates: 28'.
  • Double bottoms on other roads: 65'.
  • Length of truck and trailer combinations on interstates and primary highways: 65'.
  • Length of truck and trailer combinations on other roads: 55'.
  • Maximum length for automobile transporters and boat transporters: 75'.
  • Maximum length for Driveaway Saddle Mount combinations on designated highways: 97'.

Load Extension and Exemptions

  • Motor vehicle carriers can extend loads 3' beyond the front and 4' beyond the rear.
  • Exemptions from size limits include:
    • Farm machinery driven occasionally for short distances.
    • Vehicles temporarily transporting farm machinery.
    • Dealers delivering or moving farm machinery for repair.
    • Vehicles transporting road-making machines or materials.
    • Vehicles towing disabled vehicles for highway repair.

Weight Regulations

  • Maximum weight on single axles on interstates: 20,000 pounds.
  • Maximum weight on single axles in commercial zones: 22,400 pounds.
  • Maximum weight on single axles on all other routes: 22,000 pounds.
  • Maximum weight on tandem axles on interstates: 34,000 pounds.
  • Maximum weight on tandem axles on other routes: 36,000 pounds.
  • Actual gross weight depends on the distance from the first axle to the last axle.
  • Maximum gross weight in a commercial zone: 22,400 pounds multiplied by number of axles.
  • Maximum gross weight on interstates and designated highways: 80,000 pounds.

Permits and Applications

  • Overdimension and overweight permits can be applied for at the Missouri Department of Transportation, Motor Carrier Services Unit.

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