General Knowledge Test 7 Welcome to your General Knowledge Test 7 Name Email 1. Before transporting a sealed load, you must check which of the following? The cargo is not past its expiration date. The cargo is secured inside its containers. Your vehicle does not exceed height restrictions. Your vehicle does not exceed weight restrictions. 2. You are driving in the right lane of a four-lane, undivided road. Traffic is heavy. You come around a curve and then you notice a hazard ahead in your lane. You don't have enough room to stop. What should you do? Brake hard and brace for collision. Steer to the right. Steer into the left lane. 3. Which of these statements about tires and hot-weather driving is true? When driving in very hot weather, you should inspect your tires every two hours or every 100 miles. If a tire is too hot to touch, you should drive on it to cool it off. The air pressure of a tire decreases as the temperature of the tire increases. 4. When you're starting off on dry, level pavement, it is usually necessary to do which of the following? (a) Partly engage the clutch before you take your right foot off the brake. (b) Apply the parking brake. Both (a) and (b) Neither (a) nor (b) 5. If you must drive in fog, what should you do? Turn on your 4-way flashers. Don’t stop along the side of the road. Slow down before you enter fog. All of the above 6. At night, with your low-beam headlights on, you can see 150 feet ahead. 500 feet ahead. 350 feet ahead. 250 feet ahead. 7. Why is it important to shift gears properly? To keep the oil flowing through the crankcase To keep the cargo cool To keep the engine at the proper temperature To help maintain control of the vehicle 8. When backing, which of the following is FALSE? Back toward the driver's side if possible. Use the highest reverse gear. Use a helper if possible. Start in the proper position. 9. Which of these is a danger of crossing railroad tracks on dirt roads? You could get hung up halfway across. The ground underneath the tracks might not be stable. Your tires could sink into the dirt and not cross the tracks. 10. Extra care may be needed to keep your vehicle centered in your lane, because commercial vehicles are often wider than other vehicles. often require a lot of room to change lanes. tend to sway from side to side. 11. Which of the following statements about night driving is true? Most drivers are more alert at night than during the day. Many CMV accidents occur between midnight and 6:00 a.m. It's a good idea to wear dark glasses to reduce glare from headlights. Hazards are easier to see at night. 12. What should you do when approaching a hazard in a work zone? Use your four-way flashers or brake lights to warn others. Stop quickly and pull to the side of the road. Swerve around it and get back into your lane. 13. After you start the engine, which of the following will occur? In 4–5 minutes, the oil pressure gauge will rise to normal. The coolant temperature gauge will rise to normal operating temperature. In 10–15 minutes, the air pressure gauge will rise to normal. The manifold exhaust indicator gauge will rise to 180 degrees. 14. Which of the following can cause a skid? Driving too fast Over-steering Over-braking All of the above 15. You are driving in a rainstorm in the middle of the day. What following distance should you maintain behind the vehicle in front of you? One second more than under normal driving conditions Much more than under normal driving conditions The same following distance as under normal driving conditions One car length for every 10 mph of speed 16. During an inspection of hydraulic brakes, you should pump the brake pedal three times, then apply firm pressure to the pedal for five seconds. If the brakes are working properly, the pedal should sink to the floor. the pedal should not move. the pedal should depress slightly. 17. In a combination vehicle, wet brakes increase the risk of hydroplaning at any speed. hydroplaning at speeds over 30 mph. jackknifing. overheated brakes. 18. Which of these statements about driving in areas with strong winds is true? Wind is a big problem when your truck comes out of a tunnel. The lighter your vehicle, the less trouble you will have with the wind. You should drive alongside other vehicles to help break up the wind. 19. Which of these statements about accelerating is true? You should feel a "jerking" motion if you are accelerating your vehicle properly. Rough acceleration can cause mechanical damage. When traction is poor, more power should be applied to the accelerator. 20. Which of these is important to check before driving in the winter? Exhaust Tires Both of the above 21. Which of the following statements about parking on the entrance and exit ramps is TRUE: You may never park on the ramps. You may park on the ramps, but not during the rush hour. Parking on the ramps is allowed. 22. Which of these items is checked in a pre-trip inspection? Wiper blades Whether all vehicle lights are working and clean Both of the above 23. Which of these will happen if a tire blows out at highway speeds? A rapid drop in speed to below 20 mph A vibrating feeling A loud hissing sound 24. Where should you keep the shipping papers? In a pouch on the driver's door Locked in the glove compartment Under the driver's seat 25. When getting ready to cross a bridge you should straddle the line to stay in the middle of the bridge. read the weight limit sign. slow down to 20 mph. 26. Which of these is true about the radiator shutters and the winterfront? The winterfront should be closed tightly. The engine may overheat if the winterfront is left open. You should remove ice from the radiator shutters. 27. You were forced to leave the road in an emergency, and you are forced to return to the road before stopping on the shoulder. What should you do? Drive on the shoulder to the next exit and then re-enter the road. Using mirrors and turn signals, edge gradually back onto the road. Using mirrors and turn signals, turn sharply to get back onto the road. 28. Which of these statements about certain types of cargo is true? Oversize loads can be hauled without special permits during daylight hours. When liquids are hauled, the tank should always be loaded completely full. Unstable loads such as hanging meat or livestock require extra caution on curves. 29. The amount of liquid to load into a tank depends on the amount the liquid will expand in transit. the legal weight limits. both of the above. 30. How does vehicle weight affect stopping distance? The stopping distance of a commercial vehicle is independent of its weight. Empty trucks can take longer to stop than loaded trucks, but this is not normally the case for buses. Loaded trucks take longer to stop than empty trucks, but this is not normally the case for buses. 31. You should use a helper to help back your vehicle when possible. when you have a trailer. when you need to back on curved path. 32. Which of these statements about double-clutching and shifting is true? You can use the tachometer to tell you when to shift. Double-clutching should not be used when the road is slippery. Double-clutching should only be used with a heavy load. 33. Which of these statements is NOT true about backing a heavy vehicle? You should back slowly until you slightly bump into the dock. You should use a helper and communicate with hand signals. You should back and turn toward the driver's side when possible. 34. Which of the following may be a sign of tire failure? Vehicle thumping or vibrating Vehicle fishtailing Both of the above 35. For a first offense of driving a commercial vehicle while under the influence of alcohol or drugs, you will lose your CDL for at least 6 months. 2 years. 1 year. 36. For combination vehicles, which of the following statements about drive-wheel braking skids is true? This type of skid does not cause jackknifing. The trailer can push the tractor sideways. This type of skid occurs only rarely. Locked wheels have more traction. 37. In which of the following situations should you use your horn? To greet a friend To get a pedestrian to move out of your way To help you avoid a collision When you're changing lanes 38. If you must drive in fog, use high-beam headlights and fog lights. use low-beam headlights and fog lights. use high-beam headlights and parking lights. 39. After you start the engine, the oil pressure gauge should take 35 minutes to rise to normal. the engine temperature gauge will take 3–5 minutes to rise to normal. the coolant temperature gauge should begin a gradual rise to normal. 40. When making a left turn, turn your steering wheel slightly to the left before you reach the intersection. drive to the center of the intersection before you start turning. start turning as soon as you reach the stop line. 41. Which piece of emergency equipment must be carried in a CMV? Seat belt cutter Warning devices First-aid kit 42. Which of these statements about using mirrors is true? You should check your mirrors twice for a lane change. You should look at a mirror for several seconds at a time. There are blind spots that your mirrors cannot show you. 43. What is the minimum tread depth for front (steering) tires? 4/32 inch 2/32 inch 1/32 inch 44. Which of these statements about engine overheating is true? If your engine overheats within 20 miles of the end of your trip, you should complete the trip and then check the problem. You should never remove the radiator cap on a pressurized system until the system has cooled. You should never shut off an overheated engine until it cools. 45. At dawn or dusk, or in rain or snow, it can be hard to see and be seen. You can let others know you are there by using your horn. turning on the low-beam headlights. turning on the inside cab light. 46. You are starting your vehicle from a stop. As you apply power to the drive wheels, they start to spin. You should press harder on the accelerator. try a lower gear. take your foot off the accelerator. 47. Which of these is not part of the pre-trip inspection of the engine compartment? Worn electrical wiring insulation Condition of hoses Valve clearance 48. What should you do in thick fog? Follow the taillights or headlights in front of you Pull off the road into a rest area or truck stop Assume that the fog will thin out after you enter it 49. What should you do first when there's a fire? Report the fire Cover the fire Contain the fire 50. You are testing the stopping action of service brakes on a hydraulic system. Which of these can mean there is a problem? The brake pedal goes to the floor. The vehicle pulls to one side when the brake pedal is pressed. Both of the above are correct. 1 out of 50 Please fill in the comment box below. Time is Up! Time's up
