Wheels, Rims, Lug Nuts and Hub Leaks — Applied Knowledge

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Build confidence with 10 original questions about Wheels, Rims, Lug Nuts and Hub Leaks — Applied Knowledge. Review your answers and explanations after finishing.

Supplemental study practice. This is not a government licensing exam or ELDT certification, and does not replace hands-on training. Follow your state’s current handbook.

1 / 10

You have just changed a tire on your vehicle. After driving a short distance, what should you do regarding the wheel nuts?

Only check them if you notice vibration

Wait until the end of your shift to check them

Check them at your next scheduled maintenance

Stop and re-check the tightness of the nuts

2 / 10

While performing a pre-trip inspection, you find a cracked rim on the left front wheel. What should you do?

Do not operate the vehicle until the rim is replaced

Continue driving if the crack is small

Drive slowly and monitor the crack

Mark the rim for replacement at the next service

3 / 10

You are inspecting the right rear wheels and find a broken stud. What is the safest action?

Mark the broken stud for future repair

Do not operate the vehicle until the stud is replaced

Tighten the remaining studs and drive

Continue driving if all other studs are present

4 / 10

While inspecting the right rear wheels, you see rust streaks around several lug nuts. What is the correct action?

Only check the nuts if you hear noise while driving

Apply lubricant to the nuts

Ignore it if the nuts appear tight

Check the tightness of the nuts with a wrench

5 / 10

During your pre-trip inspection, you notice one of the wheel rims has a welded repair. What should you do before operating the vehicle?

Do not operate the vehicle until the rim is replaced

Tighten the lug nuts and continue driving

Clean the rim and check again later

Mark the rim for future inspection

6 / 10

While inspecting the right rear wheels, you notice a bent lock ring on one rim. What should you do?

Tap the lock ring back into place with a hammer

Do not operate the vehicle until the lock ring is replaced

Mark the rim for future replacement

Continue driving if the tire is holding air

7 / 10

During your walkaround, you see oil leaking from the wheel hub on the right rear axle. What should you do?

Wipe off the oil and continue driving

Do not drive the vehicle until the leak is repaired

Monitor the leak and report it at the end of the day

Add more oil to the hub and drive

8 / 10

During your inspection, you notice that the wheel and rim on the left front side are misaligned. What should you do?

Drive at a reduced speed

Continue driving and monitor for vibration

Report the issue after your trip

Do not drive the vehicle until the misalignment is corrected

9 / 10

During a walkaround inspection, you find a missing lug nut on the left front wheel. What is the safest course of action?

Replace the lug nut at your next scheduled service

Drive slowly and report it at the end of your shift

Do not drive the vehicle until the lug nut is replaced

Continue driving if the other lug nuts are tight

10 / 10

You are inspecting the right rear wheels and notice that a spacer is missing between dual tires. What is the correct action?

Continue driving if the tires are not rubbing

Drive carefully and replace the spacer at the next service

Mark the missing spacer for future inspection

Do not operate the vehicle until the spacer is replaced

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About the Wheels, Rims, Lug Nuts and Hub Leaks — Applied Knowledge practice quiz

This practice quiz focuses on Wheels, Rims, Lug Nuts and Hub Leaks — Applied Knowledge, listed under CDL Practice — Equipment and Maintenance. Use it to check what you understand, spot topics to revisit, and connect the material to safe, informed decisions on the road.

Before you begin

Keep your current CDL manual or course notes nearby. Read each prompt carefully and think through why an answer fits, especially when a question describes a vehicle, road, or workplace situation. Licensing rules and procedures can vary, so confirm requirements with current official materials for your state.

After you finish

Review any explanations shown with your results. Note unfamiliar terms or missed concepts, then revisit your manual or course notes before trying again. Use your score to guide study; understanding why an answer is correct matters more than the number alone.

Study note: These quizzes are independent study practice. They are not state licensing exams, official government materials, or ELDT certification, and they do not replace required training.

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