Texas CDL: General Knowledge Questions and Answers All Rated A

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Texas CDL: General Knowledge Questions and Answers All Rated A Merging onto a road is safest if you? Correct Answer-Wait for a large enough gap in traffic to enter the road. What three things add ... up to total stoping distance for your truck or bus? Correct Answer-Perception distance, reaction distance, effective breaking distance. You are checking your steering and exhaust system during a pre trip inspection. Which of these problems if found should be fixed before the vehicle is driven? Correct Answer-Steering wheel play of more than 10 degrees (2 inches on a 20 inch wheel) How does vehicle weight effect stopping? Correct Answer-Empty trucks take longer to stop than loaded ones, but this is not always the case for buses. When the roads are slippery you should? Correct Answer-Make turns as gently as possible Which of these is NOT a good rule when caring for injuries at an accident scene? Correct Answer-Keep injured persons cool You are driving on a straight level highway at 50mph. There are no vehicles in front of you, suddenly a tire blows out on your vehicle, what should you do? Correct Answer-Stay off the brakes until the vehicle has slowed down. After starting the engine Correct Answer-The coolant temperature gauge should begin a gradual rise to normal. You are driving a heavy vehicle with a Manuel transmission, you have to stop the vehicle on the shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting the vehicle back in motion up the grade? Correct Answer-Use the parking brake to hold the vehicle until the clutch engages.Which of these statements is true about speed management? Correct Answer-When the road is slippery it will take longer to stop and it will be harder to turn without skidding. Where must you keep shipping papers when transporting hazardous materials? Correct Answer-In the pouch on the drivers door or in the seat. You should use your mirrors to check? Correct Answer-Where the rear of the vehicle is while you are making turns. Extra care is needed to keep your vehicle centered in your lane because commercial vehicles... Correct Answer-Are often wider than other vehicles. Which of these would probably not help if your windshield were covered in ice? Correct Answer-Brush Which of these statements about causes of vehicle fires are true? Correct Answer-Poor trailer ventilation can cause cargo to catch fire. The purpose of retarders is to Correct Answer-Help slow the vehicle while driving to reduce brake wear. Which if these is usually true about driving in hot weather? Correct Answer-You should check tire mounting and pressure before driving. Which of these is usually true about driving in tunnels? Correct Answer-There maybe crosswinds when exiting When driving thru work zones you should Correct Answer-Watch for sharp pavement drop offs When passing another vehicle, pedestrian, or bicyclist you should assume that Correct Answer-They may move into your traffic lane. If you are not sure what to use to put out a hazardous material fire you should Correct Answer-Wait for qualified fire fightersWhat should you do when your vehicle hydroplanes Correct Answer-Release the accelerator Which of these statements about brakes are true? Correct Answer-The heavier a vehicle or faster it is moving the more heat the brakes have to absorb to stop. Which of these is true regarding the use of drugs while driving? Correct Answer-Prescription drugs are allowed if the drug will not affect safe driving ability. You are driving a new truck with a Manuel transmission, what gear will you probably have to use to take a long steep down grade hill? Correct Answer-A lower gear than you would use to climb the hill. Which of these statements about certain type of cargo is true? Correct Answer-Unstable loads such as having meat or livestock Which of these statements about marking a stopped vehicle is true? Correct Answer-If a hill or curve keeps drivers behind you from seeing the vehicle within 500 feet the reflective triangles should be moved back to give adequate warning. Which of these is true about rear wheel braking skids? Correct Answer-On vehicles with trailers, the trailers can push the towing vehicle sideways. Which of these statements about double clutching and shifting is true. Correct Answer-You can use the tachometer to tell you when to shift. Which of these is true about overhead clearance? Correct Answer-The weight of the cargo can change the height of the vehicle. How far should a driver look ahead of the vehicle while driving. Correct Answer-12-15 seconds or 1/4 of a mile If you need to leave the road due to traffic a traffic emergency you should? Correct Answer-Avoid braking until your speed has dropped to about 20mphWhich of these statements about backing a heavy vehicle is NOT true? Correct Answer-Because you can't see behind you, you should back slowly until you bump onto the dock. Which of these lights can not be checked at the same time. E Correct Answer-The signals, break lights, and 4 way flashers. Which of these is correct about emergency or evasive action? Correct Answer-In order to turn quickly you must have a firm grip on the steering wheel. You are driving a vehicle that can safely be driven at 55mph on an open road, but traffic is now heavy moving at 35 mph though the speed limit is 55mph. The safest speed for your vehicle is? Correct Answer-35 mph According to the cdl drivers manual, why should you limit the use of your horn? Correct Answer-It can startle other drivers. Which of these statements are true about bad weather and driving conditions. Correct Answer-When the temperature drops the bridges will freeze before the road does. To determine blood alcohol concentration for a person it is necessary to know Correct Answer-How much the person weighs What does emergency breaking mean? Correct Answer-Responding to a hazard by slowing the vehicle. Which of these happen when a tire blows out at highway speeds Correct Answer-A vibrating feeling 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 that you should keep I front of your vehicle to be safe? Correct Answer-4 seconds Truck escape ramps? Correct Answer-Help avoid damage to vehicles.When hydraulic breaks fail while driving the system will not build up pressure and the break pedal will feel spongy or go to the floor, what action should you take? Correct Answer-Pump the break pedal to generate pressure. Which of the following items are not checked in a pre trip inspection? Correct Answer-Amount of fuel in the vehicle Which of these systems should receive extra attention during a winter weather inspection. Correct Answer-Exhaust The total weight of a powered unit, the trailer and the cargo is called? Correct Answer-Gross combination weight Which of the following statements are true. Correct Answer-Most heavy vehicle accident's occur between midnight and 6am. Controlled breaking is used to keep a vehicle in a straight line when breaking. Correct Answer-is used to keep a vehicle in a straight line when breaking. When a coolant container is part of a pressurized system which of these is true. Correct Answer-You can check the coolant level of a hot engine. Which of these is a good thing to do when driving at night? Correct Answer-Keep your speed slow enough that you can stop within the distance of your headlights. You should avoid driving thru deep puddles to flowing water but if you must which of these steps can help keep your breaks working? Correct Answer-Gently putting on the break while driving through the water. Stab braking should not be used on vehicles with Correct Answer-Anti lock brake [Show More]

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