CDL Practice Test (General Knowledge) Latest Updated 2022 Graded A. Questions and answers

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CDL Practice Test (General Knowledge) Latest Updated 2022 Graded A How long should the mud flaps on a truck and trailer be? Correct Answer-Long enough to reach within 8 in of the roadway If you're... driving in town, how far will your recommended 12-15 second planning ahead measure in distance? Correct Answer-about a single block A bridge formula restricts the axle weight for axles which... Correct Answer-are closer together How soon should oil pressure rise to a normal level after starting the engine? Correct Answer-within seconds If starting from a standstill on a hill, what's the best way to get moving? Correct Answer-partly engage the clutch before you take your right foot off the brake Driving on a highway, it is recommended that you monitor a quarter of a mile ahead. At highway speeds, this equates to...? Correct Answer-12-15 sec Descending a long downgrade, which of these will help you if you have brake difficulties? Correct Answer--escape ramp -a turn going uphill -an open field (all of the above) If you are tested and found to have a blood alcohol concentration below 0.04% but above 0.0, what will happen? Correct Answer-You will be taken out of service for 24 hrs Federal, State, and local regulations concerning cargo weight, securement, and cover vary widely. Which should you obey? Correct Answer-all of themWhat are two of the most common causes of tire fires? Correct Answer-Under-inflation and duals that touch The minimum number of tiedowns on a load is...? Correct Answer-2 If your load protrudes more than 4 feet beyond the rear of your vehicle, which of these do you need in Texas? Correct Answer--a red flag at least 12X12 in (day) -a special permit -a burning red visible light (night) (all of the above) If an accident victim is bleeding heavily, what should you do to help? Correct Answer-apply direct pressure to the wound If there is an obstacle in the road and you have a choice of directions around it, why should you choose to go right? Correct Answer-it will avoid driving into oncoming traffic How can you avoid temporary night blindness from other drivers' lights? Correct Answer-look at the sidelines instead If you have to stop on a divided highway, how should you place your warning triangles? Correct AnswerAt 10ft, 100ft and 200ft , all facing approaching traffic How should you position your trailer to check the alignment of your mirrors? Correct Answer-straight with your cab If backing with a tractor trailer, turning the wheel left will do what? Correct Answer-turn the cab left and the trailer right If you have to stop on an undivided road, how should you set out your emergency warning triangles? Correct Answer-One front and one rear, and one nearer the vehicle toward traffic in the same laneIf a railroad crossing has a steep approach/exit, what should you be very aware of? Correct Answer-you could get hung up on the track When descending a hill in the state of Texas, what is it unlawful for you to do? Correct Answer-to coast down the hill If you hit a thick fog bank, what's the best thing to do? Correct Answer-stop in a safe space and wait for it to pass If you have a B:C type fire extinguisher, what is it suitable for dealing with? Correct Answer-electrical fires and burning liquids What should you be aware of when passing a motorcycle? Correct Answer-that your vehicle can throw a motorcycle off course How many different states' Commercial Driver's Licenses can you hold simultaneously? Correct AnswerOne If a road has been recently repaved, what can that mean for you going through an underpass? Correct Answer-the clearance height may be lower than it was previously What is the greatest weight allowed for any vehicle or combination of vehicles, plus load, in the state of Texas? Correct Answer-80,000 lbs If you have a convex mirror (e.g., "fisheye," "spot," "bugeye"), what should you allow for? Correct Answer-the objects may appear smaller and further away than they really are Which of the following are you not allowed to transport on public highways in Texas in an open truck? Correct Answer--gravel -sand -wood chips(loose material) If lug nuts have streaks of rust on them, what might that indicate? Correct Answer-they might be loose Which of these commercial vehicles must come to a complete stop at a railroad crossing? Correct Answer--school buses -heavy equipment -trucks carrying explosives How should you check for overhanging hazards (trees, power lines, etc.) before backing up? Correct Answer-get out of the vehicle and walk round to check for yourself How many red warning triangle/flares/reflectors should your vehicle be carrying? Correct Answer-3 If you need to establish a warning system at a time when artificial light is not required, what should you use in place of your warning triangles/ flares/reflectors, according to Texas law? Correct Answer-2 red flags If you can see the rear or front end of the vehicle but can't see the driver, you must assume...? Correct Answer-s/he can't see you To gain a CDL in Texas, you must self-certify that...? Correct Answer-- you are not addicted to alcohol -not an insulin-dependent diabetic -not addicted to drugs (all of the above) How do you know when it's time to shift gear? Correct Answer-by monitoring the vehicle speed and engine speed If you double your speed, how much does your stopping distance increase? Correct Answer-4 timesFor which of these circumstances should you NOT use your horn? Correct Answer-to show somebody they've annoyed you If you are towing another vehicle, what is the maximum length of tow connection you are permitted? Correct Answer-15 ft If you're carrying hazardous materials, what should you do with the shipping paper when you're out of the cab, for example, eating in a diner? Correct Answer-leave it in plain view on the drivers seat You are following another vehicle. What is the minimum space you should maintained between the two vehicles? Correct Answer-enough space for a following vehicle to overtake and enter the space btwn you safely If you travel at 55 mph instead of 65 mph, you could improve your fuel economy by as much as...? Correct Answer-a mile per gallon Going down a mountain, upon reaching your "safe" speed, you should then brake to...? Correct Answer- 5mph slower When performing a walk-around inspection, what must you do to the steering system? Correct Answergrab the steering mechanism to test it If you are stopped by the police and refuse to submit to a breath test or other testing method for drugs or alcohol, what will happen? Correct Answer-you will be treated as if you failed the test and lose your license [Show More]

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