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CDL General Knowledge Cheat Sheet

The 64 highest-yield CDL General Knowledge questions with the correct answer and one line of logic each - plus the walk-in document checklist and the signs you must know on sight. Print it, mark it up, walk in calm.

  • 64 exam-style questions with answers and explanations
  • Walk-in checklist: documents, fees, vision test - printable with checkboxes
  • 12 must-know road signs with plain-English meanings
  • Yours forever - study on any device or on paper
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CDL General Knowledge
64 questions inside

Free preview - 5 of the questions inside

1. At the scene of an accident, your first priorities are to ________.
✓ Protect the area, notify authorities, and care for the injured
The three priorities at a crash scene are to protect the area (prevent another collision), notify authorities by calling for help, and care for the injured. These steps keep the situation from getting worse and save lives. Handle them before paperwork or moving vehicles unnecessarily.
2. When backing a commercial vehicle, you should ________.
✓ Back slowly, use both mirrors, and back toward the driver's side when possible
Back slowly so you can make corrections, use both mirrors, and back toward the driver's (left) side whenever you can, because you can see that side better. Use a helper and get out to look (GOAL) when possible. Slow, well-observed backing prevents most backing crashes.
3. Responsibility for making sure cargo is properly loaded and secured lies with ________.
✓ The driver
The driver is responsible for checking that the cargo is properly distributed, secured, and not overloaded before and during the trip, even if someone else loaded it. You can be held accountable for an unsafe load. Always inspect the cargo yourself.
4. You should signal your intention to turn or change lanes ________.
✓ Early, so other drivers have time to react
Signal early so other drivers, especially those near your large vehicle's blind spots, have time to anticipate your move. A late signal gives no warning. Early, clear signals are essential because trucks and buses can't maneuver quickly.
5. The legal blood alcohol concentration (BAC) limit for driving a commercial vehicle is:
✓ 0.04
Commercial drivers are held to a stricter standard of 0.04 BAC, half the 0.08 limit for non-commercial drivers, and any detectable alcohol can put you out of service. Because of the size and danger of these vehicles, the rules are tighter. The safest practice is no alcohol before or while driving.
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59 more questions in the PDF