Missouri Vehicle Dimensions and Regulations
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Questions and Answers

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

  • 9 feet
  • 8 1/2 feet (correct)
  • 7 feet
  • 10 feet

    • What is the requirement for a city to have commercial zones?

  • Cities with a minimum land area of 50 square miles
  • Cities with a population of 100,000 or more
  • Cities adjacent to state borders
  • Cities with a population of 75,000 or more (correct)

    • What is the maximum length of a truck-tractor and semi-trailer upon interstates?

  • 53 feet (correct)
  • 45 feet
  • 50 feet
  • 65 feet

    • What is the maximum length of trucks and trailers on all other roads?

    <p>55 feet (D)</p> Signup and view all the answers

    What is the maximum length for any single vehicle?

    <p>45 feet (D)</p> Signup and view all the answers

    What is the maximum length of truck-tractor, semi-trailer, and trailer combinations on interstates?

    <p>28 feet (C)</p> Signup and view all the answers

    What is the maximum length of Driveaway Saddle Mount Combinations on interstate highways?

    <p>97 feet (B)</p> Signup and view all the answers

    What are exemptions from size limits (excluding interstate highways)?

    <p>Farm machinery driven occasionally (B)</p> Signup and view all the answers

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

    <p>22,400 lbs (D)</p> Signup and view all the answers

    What is the maximum gross weight allowed on interstates?

    <p>80,000 lbs (B)</p> Signup and view all the answers

    What is the weight limit for tandem axles on all other routes?

    <p>36,000 lbs (A)</p> Signup and view all the answers

    What determines the maximum gross weight allowed in a commercial zone?

    <p>The number of axles multiplied by 22,400 lbs (A)</p> Signup and view all the answers

    Which vehicles do not need to stop at weigh stations?

    <p>Vehicles licensed for 18,000 lbs or less (A)</p> Signup and view all the answers

    What is the minimum distance a truck or bus must maintain from another similar vehicle?

    <p>300 feet (C)</p> Signup and view all the answers

    What should you do to prevent any part of your load from falling off the vehicle?

    <p>Secure the load or use a protective cover (D)</p> Signup and view all the answers

    How do you compensate for off-tracking when turning?

    <p>Begin the turn as far to the right or left as possible (D)</p> Signup and view all the answers

    What is a requirement for receiving an oversize or overweight permit?

    <p>You must have liability insurance and pay a fee (D)</p> Signup and view all the answers

    What type of emergency equipment must commercial motor vehicles carry?

    <p>One fire extinguisher, one spare fuse, and a combination of warning devices (D)</p> Signup and view all the answers

    What type of vehicles are exempt from certain Motor Carrier Safety Regulations in Missouri?

    <p>Certain lighter vehicles transporting solid waste and farm vehicles under specific conditions (D)</p> Signup and view all the answers

    Under what circumstance may you follow closer than the normal limit in a bus or truck?

    <p>In a business or residential district or when passing (C)</p> Signup and view all the answers

    What should you check to ensure you have enough space over your vehicle?

    <p>Wires, signs, trees, and air conditioning units (A)</p> Signup and view all the answers

    What should you consider when ensuring the surface will hold the weight of your vehicle?

    <p>Parking lots, unpaved roads, and construction areas (D)</p> Signup and view all the answers

    Study Notes

    Missouri Vehicle Dimensions and Regulations

    • Vehicle Height Limits:

      • Maximum height, outside commercial zones on designated highways: 8.5 feet
      • Maximum height in commercial zones: Not specified, but likely related to the overall 8.5 foot limit.
      • Maximum height on all other highways: 8.5 feet

    • Commercial Zones:

      • Requirement for a city to have commercial zones: Population of 75,000 or more.
      • Commercial zone extension: One mile beyond city limits, plus one mile for every 50,000 residents.
      • St. Louis commercial zone extension: 18 miles beyond city limits.
      • Other examples of commercial zone extensions: Not specified, although the example of 12 miles is given.

    • Vehicle Length Limits:

      • Maximum length for any single vehicle: 45 feet
      • Maximum length for any bus or trackless trolley coach: 45 feet
      • Maximum length of truck-tractor and semi-trailer on interstates: 53 feet
      • Maximum length of truck-tractor and semi-trailer on other roads: 60 feet
      • Maximum length of truck-tractor, semi-trailer, and trailer combinations on interstates: 28 feet
      • Maximum length of truck-tractor, semi-trailer, and trailer combinations on other roads: 65 feet
      • Maximum length of trucks and trailers on interstates: 65 feet
      • Maximum length of trucks and trailers on other roads: 55 feet
      • Maximum length for Automobile Transporters and Boat Transporters: 75 feet
      • Maximum length for Driveaway Saddle Mount Combinations on interstate highways: 97 feet
      • Important Note: Carriers may exceed legal length limits, but an exception to the limit can exist.

    • Exemptions (Excluding Interstates):

      • Farm machinery operated occasionally and vehicles temporarily transporting farm machinery or road-making equipment.

    • Single Axle Weight Limits:

      • Maximum weight on any single axle on interstates: 20,000 lbs
      • Maximum weight on any single axle in a commercial zone: 22,400 lbs
      • Maximum weight on any single axle on other routes: 22,000 lbs

    • Tandem Axle Weight Limits:

      • Maximum weight on any tandem axle on interstates: 34,000 lbs
      • Maximum weight on any tandem axle on other routes: 36,000 lbs

    • Gross Weight Limits:

      • Maximum gross weight allowed in commercial zones: Calculated by multiplying the number of axles by 22,400 lbs
      • Maximum gross weight allowed on interstates, primary, and other designated highways: 80,000 lbs
      • Maximum weight of other routes: Not specifically detailed

    • Permits:

      • Oversize or overweight permits possible: True
      • Requirements for oversize or overweight permits: Non-reducible load, liability insurance, fee payment

    • Vehicle Route Maps:

      • Source of Missouri Vehicle Route Map: Missouri Department of Transportation

    • Hazardous Materials Transport:

      • Regulations for hazardous materials transport: Follows the equipment and operating regulations of the United States Department of Transportation

    • Emergency Equipment Requirements:

      • Vehicles licensed for 42,000 lbs or less with an 'F' plate, and solid waste haulers licensed for 60,000 lbs or less do not require emergency equipment.
      • Other commercial vehicles require: One fire extinguisher, one spare fuse, and a combination of warning devices

    • Vehicle Identification:

      • Required information on all commercial motor vehicles: Owner's name, address, and motor carrier number, plus local requirements.

    • Following Distance:

      • Minimum following distance for buses and trucks: 300 feet
      • Exceptions to following distance: Business/residential districts and passing situations
      • Following distance is kept as per the length of your vehicle. For every 10 feet in length of your vehicle.

    • Stopping Distances:

      • Stopping distance before railroad tracks varies: 15 to 50 feet

    • Load Security:

      • Required procedure to prevent a falling load: Secure load with protective cover.

    • Turning Considerations:

      • Turning compensation: Maintain a far edge for turns and consider the shortest path of rear wheels

    • Weigh Stations:

      • Vehicles exempt from stopping at weigh stations: Those licensed for 18,000 lbs or less, or for exemption by law.

    • Avoiding Accidents:

      • Strategies to avoid tailgaters: Reduce speed and maintain distance.
      • Tailgating at low speeds is better than at high speeds: True

    • Vehicle Clearance:

      • Items vehicles should check for clearance: Wires, signs, trees, air-conditioning units.

    • Surface Evaluation:

      • Factors to ensure vehicle weight is supported: Parking lots, unpaved areas, and construction sites.

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    Description

    Test your knowledge on the vehicle dimension regulations in Missouri, including height and length limits for various vehicles in commercial and non-commercial zones. This quiz covers specific rules that are essential for understanding state regulations regarding vehicle dimensions.

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