59+ CDL Test Questions to Ace Your Exam

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1	Cota Systems® \| 59+ CDL Test Questions to Ace Your Exam \| Read the Blog
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3	20 General Knowledge Test Questions	Answer
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5	1. What is the primary purpose of the pre-trip inspection?
6	A. State law requires vehicle inspections B. Safety is the most important reason to inspect your vehicle C. To make sure your lights are working properly D. To check for over inflated tires
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8	2. Aggressive driving is...
9	A. Operating in a selfish, bold, or pushy manner, without regard for the rights or safety of others B. Acceptable during rush hour in a metropolitan area C. Operating in a cautious and courteous manner D. All of the above
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11	3. The following statements about an engine overheating are TRUE EXCEPT...
12	A. Antifreeze is only used in colder temperatures B. If you can touch the radiator cap with your bare hand, it is probably cool enough to open. C. It is not possible to safely drive without radiator fluid D. Never leave the engine running if it is overheating
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14	4. What is the best thing to do if you are tired?
15	A. Drink plenty of coffee to stay awake B. Take pills to keep you alert C. Plan your trips for the middle of the night to avoid traffic D. Get enough sleep
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17	5. You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. You should:
18	A. Take your foot off the accelerator and apply the brakes. B. Press harder on the accelerator. C. Take your foot off the accelerator. D. Try a lower gear.
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20	6. You are driving on a two lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is generally the best action?
21	A. Steer to the right B. Steer onto the left shoulder C. Hard braking D. Steer into the oncoming lane
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23	7. Which of these statements about cargo loading is true?
24	A. State laws dictate legal weight limits. B. Slight overloading of a vehicle can make its brakes work better. C. If the shipper loads cargo, the driver is not responsible for overloading. D. The legal maximum weight allowed by a state can be considered safe for all driving conditions.
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26	8. How do you test hydraulic brakes for leaks?
27	A. Measure the free play on the pedal with a ruler. B. With the vehicle stopped, pump the pedal three times, apply firm pressure for 5 seconds, then hold and see if the pedal moves. C. Step on the brake pedal and the accelerator at the same time and see if the vehicle moves. D. Move the vehicle slowly and see if it stops when the brake is applied.
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29	9. Which of these statements about double clutching and shifting is true?
30	A. If you miss a gear while up-shifting, you must bring the vehicle to a stop. B. Double clutching should only be used with a heavy load C. You can use the tachometer to tell you when to shift. D. Double clutching should not be used when the road is slippery.
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32	10. The key principle in balancing cargo weight is to keep the load:
33	A. On the side away from most traffic B. Balanced in the cargo area C. To the front D. To the rear
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35	11. You are checking your tires for a pre-trip inspection. Which of these statements is true?
36	A. Tires of mismatched sizes should not be used on the same vehicle. B. Radial and bias-ply tires can be used together on the same vehicle. C. Dual tires should be touching each other. D. 2/32 inch tread depth is safe for the front tires.
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38	12. The first step to take if your vehicle catches fire while driving is:
39	A. Head for the nearest service station. B. Get the vehicle off the road and stop in an open area. C. Park in the shade of a building. D. Immediately open the door and jump out.
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41	13. While driving you are looking ahead of your vehicle. How should you be looking?
42	A. Look to the right side of the roadway B. Look back and forth and near and far C. Stare straight ahead at all times D. Look straight ahead and glance in your mirrors every 45 to 60 seconds
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44	14. You are driving a 40 foot vehicle at 45 MPH. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe?
45	A. 2 seconds B. 3 seconds C. 4 seconds D. 5 seconds
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47	15. Which of these statements about cold weather driving is true?
48	A. In snow storms, wiper blades should be adjusted so that they do not make direct contact with the windshield. B. Exhaust system leaks are less dangerous in cold weather. C. There is no need to worry about engine overheating when the weather is very cold. D. Windshield washer antifreeze should be added to the washer reservoir.
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50	16. Which is NOT part of the pre-trip inspection...
51	A. Check engine oil level B. Check horn(s) C. Check air seat adjustments D. Check seat belt fastener
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53	17. You are testing the stopping action of service brakes on a hydraulic system. Which of these can mean there is a problem?
54	A. The brake pedal goes to the floor B. Stopping action is delayed. C. The vehicle pulls to one side when the brake pedal is pressed. D. All of the above.
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56	18. On wet roads, you should reduce your speed:
57	A. By one-third B. By one-half. C. And get off the road as soon as possible. D. None of the above
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59	19. A vehicle is loaded with very little weight on the drive axle. What may result?
60	A. Damage to drive axle tires. B. A need to disconnect the steering axle brakes. C. Better handling. D. Poor traction
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62	20. How much space should you maintain in front of you at highway speeds?
63	A. Seven seconds for a 60 foot vehicle B. Five seconds for a 60 foot vehicle C. Ten seconds for a 60 foot vehicle D. Three seconds for a 60 foot vehicle
64	10 Air Brakes Endorsement Test Questions	Answer
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66	21. In a vehicle equipped with air brakes, which of the following activates the stop light switch when you brake?
67	A. Air pressure B. Hydraulic pressure C. Spring pressure D. Mechanical force
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69	22. A dual air brake system...
70	A. Has two air brake systems and one set of controls B. Takes less time to build air pressure C. Has one set of air tanks and hoses D. Must have two warning alarms
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72	23. In a vehicle equipped with air brakes, where is the safety valve located?
73	A. On the dashboard B. In the first tank to which the air compressor pumps air C. Under the brake pedal D. In the second tank to which the air compressor pumps air
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75	24. An emergency brake...
76	A. Is required on commercial vehicles B. Must be held on by mechanical force C. Could be activated by the loss of air pressure D. All of the above
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78	25. What determines how effective the spring emergency brakes or the parking brakes are?
79	A. It depends on the adjustment of the service brakes. B. It depends on the competence of the brake service technicians. C. It has nothing to do with the condition of the service brakes. D. Braking power increases when the brakes are hot.
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81	26. To test the low pressure warning signal, you should do all BUT the following...
82	A. Shut the engine off B. Turn the electrical power on C. Ask a friend to listen for the signal D. Step on and off the brake pedal to reduce air pressure
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84	27. Why should you NOT fan the brakes when you're driving on a long downgrade?
85	A. Air usage is less when fanning. B. The brake linings do not get hot when fanning. C. It won't allow the brakes to cool. D. None of the above are valid reasons.
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87	28. With dual air systems, the air pressure should build...
88	A. From 85 to 100 psi in 45 seconds B. From 70 to 100 psi in 60 seconds C. From 85 to 150 psi in 45 seconds D. From 70 to 150 psi in 60 seconds
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90	29. In a vehicle equipped with air brakes, what does the service line do?
91	A. It carries air from the foot brake or the trailer hand brake. B. It supplies air to the foot brake and the trailer hand brake. C. It carries fuel at a fueling station. D. It supplies air to the trailer air tanks.
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93	30. To check the air compressor governor "cut in" and "cut out" pressures...
94	A. Run the engine at a fast idle B. Step on and off the brake to reduce tank pressure C. Monitor the air pressure gauge D. All of the above
95	10 Hazardous Materials (HazMat) Endorsement Test Questions	Answer
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97	31. Special requirements for hazardous materials shipping papers include...
98	A. Color coding the hazardous materials bills B. Requiring drivers to keep papers either tabbed or on top of other papers C. Requiring shippers to keep the bills in a separate envelope D. None of the above
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100	32. If the hazardous materials are classified as FORBIDDEN you should...