Free CDL Practice TestAdvertisements Click here to download1. Which of these statements about staying alert to drive is true? Sleep is the only thing that can overcome fatigue. A half-hour break for coffee will do more to keep you alert than a half-hour nap. If you must stop to take a nap, it should be at a truck stop or other rest area and never on the side of the road.2. Your vehicle has hydraulic brakes. While traveling on a level road, you press the break pedal and find that it goes to the floor. Which of these statements is true? Shifting into neutral will help to slow the vehicle. Pumping the break pedal may bring the pressure up so you can stop the vehicle. The parking break will not work either because it is part of the same hydraulic system.3. You are driving a vehicle at 55 mph on drive pavement. About how much total stopping distance will you need to bring it to a stop? Half the length of the football field. The length of a football field. Twice the length of the vehicle.4. Which of these statements about cold weather driving is true? Exhaust system leaks are less dangerous in cold weather. An engine cannot overheat when the weather is very cold. Windshield washer antifreeze should be used.5. When driving at night, you should: Look to the left side of the road when a vehicle is coming toward you. Deem your lights within 300 feet of an oncoming vehicle. Adjust your speed to keep your stopping distance within your sight distance.Advertisements 6. Which of these statements about downshifting is true? When you downshift for a hill, you should do so after you start down the hill. When double-clutching, you should let the rpm’s decrease while the clutch is released, and the shift lever is in neutral. When you downshift for a curve, you should do so before you enter the curve.7. For your safety, when setting out reflective triangles, you should: Hold the triangles between yourself and oncoming traffic. Keep them out of sight while you walk to the spots where you set them out. Turn on the flashers.8. As the blood alcohol concentration (BAC) goes up, what happens? The effects of alcohol decrease. Judgment and self-control are affected. The drinker more clearly sees how alcohol is affecting him/her.9. Which of these is a good thing to remember about using mirrors? You should look at a mirror for several seconds at a time. Convex mirrors make things look larger and closer than they really are. There are blind spots that your mirror cannot show.Advertisements 10. Hydroplaning: Only occurs when there is a lot of water. Cannot occur when driving through a puddle. is more likely is tire pressure is low.11. If you are being tailgated, you should: Flash your brake lights. Increase your following distance. Signal the tailgater when it’s safe to pass you.12. A key principle to remember about loading cargo is to keep the load: Balanced in the cargo area. To the front. To the rear.13. How far should a driver look ahead of the vehicle while driving? 5-8 seconds. 18-21 seconds. 12-15 seconds.Advertisements 14. How do you correct a drive-wheel acceleration skid? Apply more power to the wheels. Downshift. Stop accelerating.15. The purpose of the retarders is to: Help prevent skids. Apply extra breaking power to the non-drive axles. Help slow the vehicle while driving and reduce break wear.16. Controlled braking: is used to keep a vehicle in a straight line when braking. can be used when you are turning sharply. involves locking the wheels for a short period of time.17. Which of these is a good thing to do when steering to avoid a crash? Don’t turn any more than needed to clear what is in your way. Apply the brakes while turning. Steer with one hand so that you can turn the wheel more quickly.Advertisements 18. You should stop driving: whenever you become sleepy. After 9 hours. After 5 hours. Loading …Question 1 of 18 Restart Quiz Buy Now & DownloadAdvertisements