Mississippi CDL Exam Questions and Answers With Complete Solution

Mississippi CDL Exam Questions and Answers With Complete Solution What is the most important reason for doing a vehicle inspection? - Safety for yourself and other road users. What things should you check during a trip? - Watch Gauges - Use senses to check for problems When stopped check critical items: - Tires, wheels, and rims - Brakes - Lights and Reflectors - Brake and Electrical connections to trailer - Trailer coupling devices - Cargo securement devices Name some key steering system parts. - - Steering Wheel - Tie Rod - Steering Shaft - Power Steering Cylinder - Steering Arm - Spindle - Steering Knuckle - Drag Link - Pitman Arm - Gear Box - Hydraulic Fluid Reservoir Name some suspension system defects. - Spring Hangers that allow movement of axel from proper position. - Cracked or broken spring hangers - Missing or broken leaves in a leaf spring - Broken or shifted leaves in a multi-leaf spring - Leaking shock absorbers - Axle positioning parts that are cracked, broken, or missing. - Air suspension systems that are damaged and/or leaking. - Any loose, cracked, broken, or missing frame members. What three types of emergency equipment must you have? - Fire Extinguisher - Spare Electrical Fuses - Warning Devices for Parked Vehicles What is the minimum tread depth for the front tires? - 4/32" What is the minimum tread depth for the other tires? - 2/32" Name some things that you should check on the front of your vehicle during the walk around inspection. - Condition of front axle - Condition of steering system - Condition of windshield - Lights and reflectors What should the wheel bearing seals be checked for? - That they are not leaking. How many red reflective triangles should you carry? - 3 How do you test hydraulic breaks for leaks? - Pump the brake pedal three times. Then apply firmly for 5 seconds. If the pedal moves, there could be a leak. Why put the starter switch key in your pocket during the pre-trip inspection? - So that the vehicle will not be moved. Why should you back towards the driver's side? - Because you can see better. If stopped on a hill, how can you start moving without rolling backwards? - Put slight pressure on the gas pedal to increase the RPMs before shifting into gear. When backing, why is it important to use a helper? - There are blind spots that you cannot see. What's the most important hand signal that you and your helper should agree on? - Stop What are two special conditions when you should downshift? - Before starting downhill - Before entering a curve When should you downshift automatic transmissions? - When going down grades Retarders keep you from slipping when the road is slick. True or False? - False. Retarders are used to slow the vehicle in replacement of the brakes. What are two ways you know when to shift? - By using the Engine Speed (RPM) - By using the Road Speed How far ahead does the manual say you should look? - 12 - 15 seconds ahead What are two main things to look for ahead? - Vehicles coming onto the highway into your lane - Brake lights from slowing vehicles What's your most important way to see the sides and rear of your vehicle? - Checking your mirrors regularly What does "communicating," mean in safe driving? - Signaling what you intend to do Where should your reflectors be placed when stopped on a divided highway? - 10', 100', and 200' What three things add up to total stopping distance? - Perception Distance + Reaction Distance + Braking Distance = Total Stop Distance If you go twice and fast, will your stopping distance increase by two or four? - Four. Empty trucks have the best braking. True or False? - False. Tractor brakes are designed to work better with a full load What is hydroplaning? - When the tires loose most if not all of their traction and skid across the road. What is "Black Ice?" - A thin layer of ice that is clear enough to see the road underneath How do you find out how many seconds of following distance space you have? - Speed Below 40mph, One second for each 10' of vehicle length - Above 40mph, Use same formula but add 1 second If you are driving a 30' vehicle at 55mph, how many seconds of following distance should you allow? - 4 seconds You should decrease your following distance if someone is following you too closely. True or False? - False. You should increase your following distance so you will have more time to brake. If you swing wide to the left before turning right, another driver may try to pass you on the right side. True or False? - False. Keep the rear of the vehicle close to the curb while the front of the vehicle swings left. What is a hazard? - Any road condition or possible user that is a possible danger. Why make emergency plans when you see a hazard? - Being prepared reduces the danger. What are some tips to follow so you won't become a distracted driver? - Be familiar with all safety and usage features on any in-vehicle electronics. How do you use in-vehicle communications equipment cautiously? - If possible, pull off the road in a safe, legal place when making or receiving a call. How do you recognize a distracted driver? - Vehicles that drift over the divider line - Vehicles traveling at inconsistent speeds - Drivers that are reoccupied with maps, drinks, food, or other objects. - Drivers who seem to be involved with conversations with their passengers. What is the difference between aggressive driving a road rage? - Aggressive Driving - The act of operating a motor vehicle in a selfish, bold, or pushy manner without regard for the rights or safety of others. : Road Rage - Operating a motor vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle. What should you do when confronted by an aggressive driver? - Make every attempt to get out of their way. What are some things you can do to reduce your stress before and while you drive? - Do not allow yourself to be distracted by communication devices - Give yourself plenty of travel time - If later then expected, deal with it. - Avoid gestures - Be a cautious and courteous driver. You should use low beams whenever you can. True or False? - False. You can see more hazards with your high beams What should you do before you drive if you are drowsy? - Sleep before you drive. What effects can wet breaks cause? How can you avoid these problems? - Weak brakes - Apply unevenly : Grab - Avoid deep puddles : Slow down and place transmission in a low gear, then gently put on the brakes when going through water. You should let air out of hot tires so the pressure goes back to normal. True or False? - False. Remain stopped until the tires cool off. You can safely remove the radiator cap as long as the engine isn't overheated. True or False? - False. Never remove any part of the system until it has completely cooled. What factors determine your selection of a "safe" speed when going down a long, steep downgrade? - Use the same gear going down a hill that you would use going up. Why should you be in the proper gear before starting down a hill? - You will not be able to downshift after your speed has increased. Describe the proper breaking technique when going down a long, steep downgrade. - Apply the brakes until you feel a definite slow down. - Once 5mph below the "safe" speed, release the brakes. What type of vehicles can get stuck on a railroad-highway crossing? - Low Slug Units - Single Axle tractor pulling a long trailer with landing gear set for a tandem-axel tractor. How long does it take for a typical tractor-trailer unit to clear a double track? - More then 15 seconds Stopping is not always the safest thing to do in an emergency. True or False? - True. When there is not enough time to stop, steering away would be useful. What are some advantages of going right instead of left around an obstacle? - If the driver has entered your lane, their natural response when they realize what has happened is to steer back into their lane. What is an "escape ramp?" - When there is a brake failure, turning uphill can be a justifiable way to slow the vehicle. If a tire blows out, you should hit the brakes hard to stop quickly. True or False? - False. Grip the wheel firmly and stay off the brake. Then allow the vehicle to naturally slow down. How do you know if your vehicle has antilock brakes? - Tractors - Will have Yellow ABS malfunction lamps on the instrumental panel : Trailer - Will have Yellow ABS malfunction lamps on the left side. What is the proper braking technique when driving a vehicle with antilock brakes? - Brake as you normally would How do antilock brakes help you? - They keep your brakes from locking so you can steer around obstacles while braking