Class D License Study Guide

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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?

13 feet 6 inches Signup and view all the answers

What is the maximum length for any single vehicle including load?

40 feet Signup and view all the answers

What is the maximum length for a truck-tractor and trailer combination?

65 feet Signup and view all the answers

What must secured loads not be allowed to do?

drop, shift, leak or otherwise escape Signup and view all the answers

A load must not extend more than how many feet to the front of the vehicle?

4 feet Signup and view all the answers

A load must not extend more than how many feet beyond the rear of the vehicle?

8 feet Signup and view all the answers

How many feet may poles, pilings, and logs project beyond the rearmost part of the trailer?

15 feet Signup and view all the answers

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?

red flag 12 inches square Signup and view all the answers

At night, how far must a red light be visible to the sides and rear of a load?

500 feet Signup and view all the answers

What is the maximum speed for any vehicle in Louisiana?

70 mph Signup and view all the answers

What is the speed limit when pulling or towing another motor vehicle?

45 mph Signup and view all the answers

What is the speed limit for school buses when frequently stopping to load or unload children?

35 mph Signup and view all the answers

Drivers must not follow within how many feet of one another on rural highways?

400 feet Signup and view all the answers

High beam headlights must be dimmed no less than how many feet from oncoming traffic?

500 feet Signup and view all the answers

You must stop within _ but not closer than _ of the nearest rail.

50 feet, 15 feet Signup and view all the answers

What type of fire extinguisher must vehicles transporting passengers for hire carry?

2-BC Signup and view all the answers

What is the required fire extinguisher type for tow trucks?

4-BC Signup and view all the answers

How many flares, electric red lanterns, or portable reflectors must freight-carrying vehicles carry?

Three of each Signup and view all the answers

What must every truck have to minimize the spray of water or mud?

mud flap Signup and view all the answers

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.