General Knowledge Test 5 Welcome to your General Knowledge Test 5 Name Email 1. At a blood alcohol concentration (BAC) of ______, most people lose consciousness, and some die. 0.40% 0.16% 0.10% 2. Which of these statements about speed management are true? On a wet road, you should reduce your speed by about one-third. On packed snow, you should reduce your speed by about one-half. Both of the above statements are true. 3. Which of the following statements about backing are true? You should back and turn toward the driver's side whenever possible. Backing is always dangerous. Both of the above are true. 4. Whether or not you load or secure your cargo yourself, you are responsible for recognizing overloads and poorly balanced weight. knowing that your cargo is securely tied down and covered. both of the above. 5. Why should you be in the proper gear before starting down a hill? You need to be in the same gear at the bottom of the hill. You may not be able to shift into a lower gear once you are going down a hill. The clutch is made to be used on even surfaces. 6. Which of these items is NOT checked on a pre-trip inspection? Whether all vehicle lights are working and clean Cargo securement Cab air conditioning 7. 8. You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true? Cracked wheels or rims can be used if they have been welded. A vehicle can be safely driven with one missing lug nut on a wheel. Rust around lug nuts may mean that they are loose. 9. Which of these can cause the vehicle to skid? Overacceleration Not enough weight on the front axle Both of above 10. What are some things you should do at an accident scene to prevent another accident? If you're stopping to help, park away from the accident. Try to move your vehicle to the side of the road. Do both of the above. 11. Where or when should you test the stopping action of your service brakes? In the parking lot when the vehicle is not moving At a special brake testing center only When the vehicle is moving at about 5 mph 12. Which of these statements about vehicle fires is true? A burning tire should be cooled with water. If the cargo or box trailer catches fire, open the doors as soon as you can. If your engine is on fire, open the hood as soon as you can. 13. When driving in work zones, you should use your four-way flashers or brake lights to warn drivers behind you. slow down. do both of the above. 14. Your blood alcohol concentration (BAC) depends on your height. age. body weight. 15. When should you check your mirrors for a lane change? After starting and after completing the lane change Before and after signaling the lane change Both of the above 16. You are driving a 40-foot vehicle at 50 mph. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe? 5 seconds 4 seconds 3 seconds 17. On which fires can you use an A:B:C fire extinguisher? Electrical fires Burning tires or cloth Both of the above 18. You are driving a 40-foot vehicle at 35 mph. The road is dry and visibility is good. What is the least amount of space you should keep in front of your vehicle to be safe? 4 seconds 5 seconds 3 seconds 19. Which of the following violations at railroad crossings can lead to loss of your CDL for at least 60 days? Getting stuck on the tracks because of insufficient clearance Not having sufficient space to drive all the way through without stopping Both of the above 20. Which of these is especially true about your tires in hot weather? If a tire is too hot to touch, you should hose it down with water. You should bleed a small amount of air to keep tire pressure steady. You should check tire mounting and air pressure before driving. 21. When you intend to turn, how should you use your turn signals? Signal continuously up through the turn. Signal well in advance of the turn. Do both of the above. 22. How can you avoid the effects that wet brakes can cause? Gently apply the brakes, increase engine rpm, and cross the water while keeping light pressure on the brakes. Slow down and place the transmission in low gear. Both of the above answers are correct. 23. Which of these is NOT something you should do if your headlights are not working properly? Clean the headlights. Adjust the headlights. Leave your high beams on. 24. You are driving a vehicle that can be driven safely at 55 mph on an open road. Although the speed limit is 55 mph, traffic is heavy, moving at 35 mph. The safest speed for your vehicle in this situation is 40 mph. 45 mph. 35 mph. 25. Which of these statements is true regarding the use of drugs while driving? No prescription or nonprescription drugs are allowed at any time for any reason. Prescription drugs are allowed as long as your doctor says the drugs will not affect safe driving ability. "Speed" and other amphetamines are allowed as long as you are using the drugs to stay awake. 26. Even if you don't have a Hazardous Materials endorsement on your CDL, you can drive a vehicle carrying hazardous materials if someone who has a Hazardous Materials endorsement rides with you. the vehicle does not require placards. the cargo will be transported less than 100 miles. 27. Which of these is a good rule to follow when using a fire extinguisher? Stay downwind of the fire. Aim at the base of the fire. Keep as close to the fire as possible. 28. You are checking your brakes and suspension system for a pre-trip inspection. What are you looking for? Brake pads should not have oil, grease, or brake fluid on them. Brake shoes must not be worn dangerously thin, missing, or broken. Both of the above should be true. 29. You are checking your tires for a pre-trip inspection. Which of these statements is true? Tires of mismatched sizes should not be used on the same vehicle. Radial and bias-ply tires can be used together on the same vehicle. A tread depth of 2/32 inch is safe for the front tires. 30. Which of these tells you that cargo contains hazardous materials? A hazardous materials placard is on the vehicle. There is a four-inch, diamond-shaped hazardous materials label on the container. Both of these answers are correct. 31. Which of these statements about managing space to the sides is true? Always keep your vehicle to the right side of your lane. You should avoid traveling alongside other vehicles whenever possible. Strong winds make it easy to stay in your lane. 32. Which of the following materials can be used in an A:B:C fire extinguisher to put out all three classes of fires? Dry chemical agent Carbon dioxide Water 33. You should have at least _______ of tread on your steering axle tires. 2/32 inch. 4/32 inch. 1/4 inch. 34. Cargo that is not loaded or secured properly can cause which of the following problems? Other road users can hit or be hit by loose cargo. Loose cargo can injure the driver or passengers during a quick stop or crash. Both of the above are correct. 35. When getting in to start the engine and inspect inside the cab, you must start the engine and listen for unusual noises. make sure the parking brake is on and put the gearshift in neutral (or park if automatic). do both of the above. 36. Front-end header boards protect you from your cargo in case of collision. block the forward movement of your cargo. do both of the above. 37. The Ohio Commercial Driver License Manual suggests several things to do when you pass a vehicle. Which of these is NOT one of them? Assume the other driver does not see you. Constantly blow your horn while passing the vehicle. At night, flash your lights from low to high beam and back while you pass the vehicle. 38. Which of these is NOT required knowledge for drivers needing a HAZMAT endorsement? Which products can be loaded together When to use placards Basic chemistry 39. There are certain types of vehicle inspections, including general, maintenance, and physical. post-trip, pre-trip, and en-route. all of the above. 40. Which of these will help keep an engine cool in hot weather? Properly adjusted V-belts Making sure the engine has the right amount of oil Both of the above 41. When crossing or entering traffic with a heavy vehicle, you should remember which of the following? Because heavy vehicles are easy to see, you can count on other drivers to move out of your way or slow down for you. Heavy vehicles need larger gaps in traffic than cars. The best way to cross traffic is to pull the vehicle partway across the road and block one lane while waiting for the other lane to clear. 42. If you are involved in a collision but are not seriously injured, what must you do? Protect the area and notify the authorities. Care for the injured and collect required information. Do both of the above. 43. Name some suspension system defects. Broken leaves in a leaf spring and a cracked or broken spring hanger Leaking shock absorbers Both of the above 44. Which of these statements about drinking alcohol are true? Statistics show that drivers who have been drinking have a much greater chance of being in a crash. Alcohol first affects judgment and self-control, which are essential for safe driving. Both of the above are true. 45. You should check the following for looseness, sticking, damage, or improper settings accelerator, brakes, and clutch pedals. steering wheel and transmission controls. all of the above. 46. Which of these statements is FALSE? Alcohol goes directly from the stomach to the blood stream. Your blood alcohol level (BAC) is determined by how fast you drink, how much you drink, and how much you weigh. A drinker can control how fast his or her body absorbs and gets rid of alcohol. 47. You must drive on a slippery road. Which of these is a good thing to do in such a situation? Apply the brakes during turns. Slow down gradually. Use a smaller following distance. 48. Which of these can cause a fire? Loose fuel connections Underinflated tires Both of the above 49. Loads that are over-length, over-width, or overweight may require driving limited to certain times. flashing lights. both of the above. 50. Serious traffic violations that can cause your CDL to be suspended include excessive speeding and erratic lane changes. tailgating and reckless driving. all of the above. 51. What are important reasons for performing a vehicle inspection? Federal and state regulations require you to inspect your vehicle. A vehicle defect that is found during inspection and corrected can prevent problems later. Both of the above are important reasons. 1 out of 51 Please fill in the comment box below. 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