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CDL Practice Test (General Knowledge) Questions and Answers 1.How long should the mud flaps on a truck and trailer be (Answer) Long enough to reach within 8 in of the roadway 2.If you're driving in town, how far will your recommended 12-15 second planning ahead measure in distance (Answer) about a single block
3.A bridge formula restricts the axle weight for axles which...: are
closer together 4.How soon should oil pressure rise to a normal level after starting the engine (Answer) within seconds 5.If starting from a standstill on a hill, what's the best way to get moving (Answer) - partly engage the clutch before you take your right foot off the brake 1 / 2
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6.Driving on a highway, it is recommended that you monitor a quarter of a mile ahead. At highway speeds, this equates to... (Answer) 12-15 sec 7.Descending a long downgrade, which of these will help you if you have brake difficulties (Answer) -escape ramp -a turn going uphill -an open field (all of the above) 8.If you are tested and found to have a blood alcohol concentration below 0.04% but above 0.0, what will happen (Answer) You will be taken out of service for 24 hrs 9.Federal, State, and local regulations concerning cargo weight, secure- ment, and cover vary widely. Which should you obey (Answer) all of them 10.What are two of the most common causes of tire fires (Answer) Under- inflation and duals that touch