Louisiana Class D Chauffeur License Test 2026 (110 Questions) – LA OMV – Vehicle Weight Limits, Air Brakes, Towing Laws & Safety Regulations Q&A

This document contains 110 fully answered exam questions for the Louisiana Class D “Chauffeur’s” License Test 2026, covering vehicle weight classifications, size limitations, load extension laws, speed limits, air brake systems, towing regulations, and required safety equipment. It explains Class D eligibility requirements (10,001–26,001 pounds, non-hazardous materials), age qualifications, and operational permissions, along with maximum vehicle dimensions including width, height, and length limits for single vehicles and truck-tractor combinations. The study guide provides detailed instruction on cargo securement rules (drop, shift, leak prevention), front and rear load extension measurements, red flag and red light requirements for extended loads, warning device placement distances during breakdowns, mirror visibility standards, and following distance requirements for trucks on rural highways. It also outlines fire extinguisher ratings required for passenger vehicles, tow trucks, and vehicles transporting explosives, as well as equipment rules for freight carriers. A significant portion of the material focuses on air brake systems, including service, parking, and emergency brake functions; air compressor and governor operation; manual and automatic air tank drains; safety valves; supply and application pressure gauges; spring brakes; brake lag distance; emergency braking techniques (controlled and stab braking); and full air brake inspection procedures. The document also explains stopping distance calculations, brake fade causes, parking brake exceptions, and the proper response to low air pressure warnings. This structured Q&A format reinforces Louisiana Office of Motor Vehicles regulations and supports thorough preparation for the written Class D licensing examination. This document is particularly relevant for: Louisiana Class D license applicants Commercial and delivery drivers Tow truck operators Small fleet and business vehicle operators Transportation safety trainees It is suitable for courses such as: Commercial Driver Safety Air Brake Systems and Inspection Vehicle Operations and Towing Regulations Transportation Law and Compliance Fleet and Road Safety Training Keywords: Louisiana Class D license test, LA OMV chauffeur exam 2026, Class D weight requirements pounds, vehicle size limits Louisiana, maximum vehicle width 8 feet, maximum height 13 feet 6 inches, maximum vehicle length 40 feet, truck tractor combination 65 feet, load extension red flag rule, towing speed limit 45 mph, school bus speed limit 35 mph, warning device placement 100 feet, air brake system components, service parking emergency brakes, spring brakes function, low air pressure warning 60 psi, brake lag distance, controlled braking method, stab braking technique, fire extinguisher rating 2 BC 4 BC 10 BC