General Knowledge CDL Practice Questions
236 free General Knowledge CDL-style practice questions.
The distance that you should look ahead of your vehicle while driving amounts to about ___ miles at normal highway…You are inspecting hydraulic brakes. You should pump the brake pedal three times, then apply firm pressure to the pedal…During the vehicle inspection, checking of ___ will NOT prevent a fire.When you are driving on a snow-packed road, you should reduce your speed by:What should you do when you see a hazard in the roadway ahead of you?How do you correct a drive-wheel acceleration skid?If you are convicted for driving under the influence while driving a commercial vehicle, and this is your first offense,…Brake fade:Containerized loads:The tread depth on front steering wheel tires should be:When driving in cold weather, your tire tread should:Which of these is a good thing to do when steering to avoid a crash?Convex (curved) mirrors:What should be true about other drivers?Which of the statements about pre-trip inspection is true?When the hydraulic brakes fail while you are driving, the system will not build up pressure, and the brake pedal…Which of these is a good thing to remember about using mirrors?Which of these should you NOT do in an emergency situation?You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start…Which of these statements about certain types of cargo is true?The primary cause of fatal crashes is:Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which…You must stop on a hill or curve on a two-lane, two-way road. How far should you place reflective triangles?What is true about using a heater?You are driving on a two-lane road. An oncoming driver drifts into your lane and is headed straight for you.…Which of these statements about brakes is true?Which of the following systems should receive extra attention during winter weather inspection?Medicine used to treat the common cold:Which of the following statements about speed management is true?If your brakes fail on a downgrade, you must first:Which may be a sign of tire failure?According to the driver's manual, why should you limit the use of your horn?You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder while…If a coolant container is part of a pressurized system, which of these is true?Communication means:You are checking your steering and exhaust system in a pre-trip inspection. Which of these problems, if found, should be…When loading a trailer, if the cargo is loaded all to the rear, it may result in:Which of these actions are NOT recommended for a left turn?You should lightly apply your brakes to flash the brake lights if:Which of these is true about notifying the authorities after an accident occurs?Which of these is true about hauling hazardous materials?Can state inspectors inspect your truck or bus?You are driving a vehicle that could be driven safely at 55 mph on an open road. But traffic is…There are two types of jackknife, they are:Why is damage to the exhaust system a danger?Which of these is the proper signal to change lanes?Which of these is true about driving in a tunnel?Perception distance is the distance your vehicle travels from the time:When exiting or entering on a curved freeway ramp, you should:How much space in front of you is needed while driving on a highway?