Texas CDL- General Knowledge Exam Latest Updated Graded A+

What are several things to look for in a pre-trip inspection of your tires? - ANSWER-Look for tires that are mismatched in size and ply, and tires that are worn or damaged. What should you look for in a pre-trip inspection of your wheels and rims? - ANSWER-Look for rust around wheel nuts that indicate looseness AND cracked or damaged wheels or rims AND mismatched or bent lock rims. What do you look for in pre-trip inspection of your brakes and suspension system? - ANSWER-Brake shoes and pads with fluid in them AND look for shoes worn thinner than 1/32 inch AND cracked, missing, or broken parts. Which of these problems should be fixed before the trip if found on a pre-trip inspection? - ANSWER-A small leak of power steering fluid AND steering wheel play of more than 10 degrees (2 inches on a 20 inch wheel) AND A leak in the exhaust system What emergency equipment should you carry in your vehicle? - ANSWER-At least one fire extinguisher AND warning triangles AND spare electrical fuses. When you do a pre-trip inspection of the engine compartment, you don't check: - ANSWER-valve clearance. When you do a pre-trip inspection of the engine compartment, you DO check: - ANSWER-electrical wire insulation AND engine oil level AND hose condition Which items should you check before and during a trip? - ANSWER-Cargo securement AND vehicle gauges AND tires What do you check in an enroute inspection? - ANSWER-Brakes and tires AND coupling devices AND cargo How do you start your vehicle on an uphill grade? - ANSWER-Use the parking brake to hold the vehicle until the clutch engages. How should you accelerate? - ANSWER-Accelerate smoothly so you won't cause coupling damage. What should you do if your drive wheels start to spin as you start up from a stop? - ANSWER-Turn your engine off and start over. How should you hold your steering wheel? - ANSWER-With both hands, as on a clock at 3 and 9. What is a true statement about backing? - ANSWER-Avoid backing whenever you can. Which tips about double-clutching and shifting are true? - ANSWER-Use your tachometer to tell you when to shift. What are some facts about downshifting you should know? - ANSWER-Downshift before you go down a hill. What is the purpose of retarders? - ANSWER-The help slow the vehicle and reduce brake wear. What is a major caution when using retarders? - ANSWER-They may cause the drive wheels to skid when the traction is poor. How far ahead should you look while driving? - ANSWER-12 to 15 seconds ahead. How far should you look ahead of your vehicle when driving at highway speed? - ANSWER-1/4 mile. Mirrors can be used to check: - ANSWER-the location of the rear of your vehicle in a turn AND the condition of some of your tires AND traffic gaps when merging. What should you know about mirrors? - ANSWER-Even using mirrors there may be "blind spots." How should you use your turn signal? - ANSWER-When turning, signal early. How should you use your vehicle lights? - ANSWER-Flash your brake lights to warn vehicles behind you of hazards. How should you mark a stopped vehicle? - ANSWER-Don't use the 4-way flashers in daylight. Where do you place your triangles when you stop on the side of a four-lane divided highway? - ANSWER-One 10 feet to the rear, another 100 feet to the rear, and then the third one, 200 feet to the rear. When carrying your reflective triangles to set them up, you should: - ANSWER-Carry them between you and the oncoming traffic. Why should you limit blowing your horn? - ANSWER-It can startle other drivers. What is the stopping distance at 55 mph on dry pavement? - ANSWER-The length of a football field. What is the effect of speed and weight on stopping distance? - ANSWER-If a vehicle is heavier, brakes have to do more work to stop. What is the MOST important fact about emergency braking? - ANSWER-If the wheels are skidding you can't control the vehicle. Which facts about speed management are true? - ANSWER-When the road is slippery, it will take longer to stop and it will be harder to turn without skidding AND On packed snow, REDUCE your speed by at least ONE-HALF AND On a wet road, REDUCE your speed by about ONE-THIRD. How should you drive on a slippery road? - ANSWER-Slow down gradually. What should you do if the road starts becoming very slippery due to glare ice? - ANSWER-Slow down and stop driving as soon as you can safely do so. What is true about hydroplaning? - ANSWER-It is more likely to happen if tire pressure is low. It can happen with speeds as low as 30 mph. How do you exit a highway off-ramp that curves downhill? - ANSWER-Slow down to a safe speed before the curve. When driving at night, you should: - ANSWER-Keep your stopping distance withing your sight distance. If freeway traffic is heavy and going at about 35 mph, what is the safest speed for your vehicle? - ANSWER-35 mph. If you're driving a 40 foot vehicle at 35 mph, what is the least amount of space to keep in front of you to be safe? - ANSWER-4 seconds.