CDL Practice Test (General Knowledge)

CDL Practice Test (General Knowledge) Vehicle Safety and Regulations 1. Mud Flaps: - Must reach within 8 inches of the roadway on trucks and trailers. 2. Planning Ahead: - In town, a 12-15 second planning distance is approximately one city block. 3. Bridge Formula: - Restricts axle weight for axles that are closer together. 4. Oil Pressure: - Should rise to a normal level within seconds after starting the engine. 5. Starting on Hills: - Best method is to partly engage the clutch before removing your right foot from the brake. Driving Techniques and Emergencies 1. Highway Awareness: - At highway speeds, you should monitor traffic 12-15 seconds ahead, which translates to about a quarter of a mile. 2. Brake Difficulties: - If descending a long downgrade and experiencing brake issues, utilize an escape ramp, a turn going uphill, or an open field. 3. Alcohol Policy: - If found with a BAC below 0.04% but above 0.0, you will be taken out of service for 24 hours. 4. Cargo Regulations: - Obey all federal, state, and local regulations concerning cargo weight, securement, and covering. Emergency Situations and Assistance 1. Tire Fires: - Common causes include under-inflation and dual tires that touch. 2. Tie-Down Requirements: - A minimum of two tie-downs is necessary for securing a load. 3. Traffic Accidents: - If you are the first on the scene, stop at a safe distance and warn other traffic. 4. Dealing with Obstacles: - Choose to go right to avoid oncoming traffic when navigating around road obstacles. Night and Weather Conditions 1. Avoiding Night Blindness: - To minimize temporary night blindness, look at the sidelines when encountering bright lights from oncoming vehicles. 2. Fog Driving: - In a thick fog bank, the best action is to stop in a safe space until conditions improve. 3. Railroad Crossings: - Certain vehicles must come to a complete stop at railroad crossings, including school buses and trucks carrying explosives. Inspection and Equipment Requirements 1. Walk-Around Inspection: - During inspections, ensure the steering mechanism is tested adequately by grabbing it. 2. Emergency Warning Devices: - When stopped, position your warning devices correctly at 10 feet, 100 feet, and 200 feet facing approaching traffic. 3. Cargo Fire: - If faced with a cargo fire inside a box trailer, you should avoid opening the doors. Driving Regulations 1. CDL Regulations: - You cannot hold more than one CDL simultaneously. 2. Following Distances: - Maintain adequate space behind other vehicles to ensure a safe following distance. 3. Night Driving Regulations: - Reduce speed and increase following distance during nightt