Questions and Answers
What is the maximum width for most vehicles?
8 feet
The load will not project more than _______ beyond the width of the body.
6 inches
What is the maximum width for buses?
8 feet 6 inches
What is the maximum height for vehicles?
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What is the maximum length for any single vehicle including load?
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What is the maximum length for a truck-tractor and trailer combination?
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What must secured loads not be allowed to do?
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A load must not extend more than how many feet to the front of the vehicle?
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A load must not extend more than how many feet beyond the rear of the vehicle?
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How many feet may poles, pilings, and logs project beyond the rearmost part of the trailer?
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What must be attached to the extreme rear of a load extending four or more feet past the bed of the vehicle during daylight hours?
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At night, how far must a red light be visible to the sides and rear of a load?
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What is the maximum speed for any vehicle in Louisiana?
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What is the speed limit when pulling or towing another motor vehicle?
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What is the speed limit for school buses when frequently stopping to load or unload children?
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Drivers must not follow within how many feet of one another on rural highways?
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High beam headlights must be dimmed no less than how many feet from oncoming traffic?
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You must stop within ___ but not closer than ___ of the nearest rail.
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What type of fire extinguisher must vehicles transporting passengers for hire carry?
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What is the required fire extinguisher type for tow trucks?
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How many flares, electric red lanterns, or portable reflectors must freight-carrying vehicles carry?
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What must every truck have to minimize the spray of water or mud?
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Study Notes
Vehicle Size Regulations
- Maximum width for most vehicles: 8 feet
- Maximum width for buses: 8 feet 6 inches
- Maximum height for vehicles: 13 feet 6 inches
- Maximum length: 40 feet for single vehicles, 65 feet for truck-tractor and trailer combinations
Load Projection Rules
- Loads may not extend more than 6 inches beyond the width of the body.
- Front extension limit: 4 feet; rear extension limit: 8 feet (except poles, pilings, logs - can extend 15 feet beyond rear)
Load Security Requirements
- Loads must be secured; contents must not drop, shift, leak, or escape.
- If a load extends 4 feet or more beyond the vehicle's body, a 12-inch red flag must be affixed at the rear during daylight hours.
Nighttime Safety Measures
- At night, a red light must be visible for at least 500 feet to the sides and rear if load extends past vehicle.
Speed Limits
- Maximum speed in Louisiana: 70 mph, with restrictions:
- 45 mph when towing another vehicle
- 35 mph for school buses
- Obey posted lower speed limits
- 75 mph on parts of I-49
Following Distance Regulations
- On rural highways, motor trucks must maintain a distance of at least 400 feet from one another unless passing.
Headlight Usage
- High beam headlights must be dimmed at least 500 feet from oncoming traffic and 200 feet from a following vehicle.
Coasting and Gear Regulations
- Vehicles must not coast downhill with the clutch disengaged or in neutral.
Railroad Crossing Rules
- Stop within 50 feet but no closer than 15 feet from the nearest rail; do not change gears until completely crossed.
Fire Extinguisher Requirements
- Passenger transport vehicles must have a type 2-BC fire extinguisher.
- Tow trucks must carry a 4-BC fire extinguisher for flammable liquid fires.
- Vehicles transporting explosives need a 10-BC fire extinguisher.
Vehicle Features
- Trucks must have mud flaps to reduce spray or splash of debris.
- Freight and passenger buses must carry three flares, red lanterns, or reflectors, and two red flags.
Signal Placement Guidelines
- One signal must be placed 100 feet behind and 100 feet forward of the vehicle in the center of the lane or shoulder; a third must be on the traffic side, 10 feet to the front or rear.
Towing Regulations
- The connection must be strong enough to tow the weight, with a maximum distance of 15 feet (may exceed when towing non-dismemberable objects).
Mirror Requirements
- Vehicles must have a rear view mirror that reflects a view of the highway for at least 200 feet to the rear.
Brake Regulations
- Trailers or semi-trailers with a gross weight of 3000 pounds or more must be equipped with adequate brakes.
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Description
Test your knowledge with this Class D License study guide. The flashcards cover essential vehicle size regulations, including maximum width, height, and length. Perfect for those preparing for their Class D License exam.
