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FREE 2024 Illinois (IL) Doubles - Triples Practice Test 1

2024 IL Doubles - Triples Information

The doubles and triples CDL endorsement grants the ability to drive a combination of multiple trailers attached to one truck or power unit. Please keep in mind it is illegal to pull triple trailers in many states. Normal doubles and triple jobs can include UPS, Fedex, and more.

We have compiled 60 of the most used doubles and triples endorsement questions, and our questions are based on the information provided by the 2024 Illinois CDL drivers’ manual. The exam itself will have 20 multiple choice questions on it, and you must score at least 80% (16 out of 20) to pass the doubles and triples exam.

Our CDL Practice tests are based on the real exam, one question per page, multiple choice answers, and one chance to get it right. However, our practice tests will provide immediate feedback, showing the question again, highlighting the correct answer, and giving a brief explanation why that answer is correct.

Image of Illinois's Driver's License

Based on the 2024 IL CDL Driver's Manual

IL Doubles - Triples Fact Sheet
Questions on Test:
20
Correct answers needed to pass:
16
Passing Score:
80%
Age to apply:
18
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You should check the height of the trailer before connecting a converter dolly to a second or third trailer. The trailer height is right when:
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  1. You should check the height of the trailer before connecting a converter dolly to a second or third trailer. The trailer height is right when:
  2. The best way to stop all skids is to:
  3. When does the drivers manual advise disconnecting the steering axle brakes to help keep the rig straight?
  4. When driving with more than one trailer, which trailer should be the first one behind the tractor?
  5. Driving a truck with double or triple trailers requires a driver to:
  6. Which of these will result in the best control on curves?
  7. You are driving a 100' vehicle with double trailers at 30 MPH. The road is dry, and visibility is good. You should keep at least _____ seconds of space ahead of you:
  8. You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should:
  9. You are doing a walk around inspection of a double or triple trailer rig. You should be sure the converter dolly air tank drain valves are _____ and the pintle hook is _____.
  10. A converter dolly is
  11. If a converter dolly has spring brakes, you release the brakes by
  12. You have connected the converter dolly to the front semitrailer and then connected the rear semitrailer to the converter dolly. How should you test the coupling?
  13. To test the tractor protection valve, charge the trailer air brake system, turn off the engine, and
  14. If your landing gear is power operated, you should check for ________ during your walk-around inspection.
  15. Coupling a triple trailer is different from coupling other combinations because
  16. The tractor protection valve is designed to close automatically when the air pressure falls into the pressure range specified by the manufacturer, typically
  17. In order, the four steps to test your trailer's service brakes are as follows
  18. If your test of the tractor protection valve is successful,
  19. To uncouple the rear trailer, the first thing you do is
  20. A converter dolly with antilock brakes (ABS) is required to have
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