Nevada CDL Practice Test
10 Nevada-specific questions + General Knowledge · Updated July 12, 2026
The Nevada CDL General Knowledge test runs 50 questions at the federal 80% standard (miss up to 10). Nevada administers the CDL knowledge test in English only (as most states now do). This practice set leads with 10 questions specific to Nevada — the state licensing rules (CLP validity, fees, intrastate age) that generic CDL prep skips — then fills with General Knowledge from the federally standardized material.
Nevada's real CDL exam sections. Also take the Air Brakes and Combination Vehicles practice tests.
Answer each question to see the explanation. Your score is tallied against the real passing bar at the end.
1. What is the minimum age to be issued a Nevada CDL to operate a commercial motor vehicle in INTERSTATE commerce?
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Correct answer: 21 years old
You must be at least 21 years old to be issued a Nevada CDL to operate a CMV in interstate commerce. Applicants between 18 and 20 may be granted a CDL for intrastate (Nevada-only) commerce.
2. In Nevada, an applicant who is 18 to 20 years old may be granted a CDL only to:
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Correct answer: Operate a CMV in intrastate commerce — with no passengers-for-hire and no placarded hazardous materials
Applicants 18 to 20 may be granted a CDL to operate a CMV in intrastate commerce only. This age group will not be granted the privilege to transport passengers for hire or to transport hazardous materials requiring placards.
3. How long is a Nevada commercial learner permit (CLP) valid?
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Correct answer: 180 days
A Nevada CLP is valid for a 180-day period for the purpose of behind-the-wheel training on public roads or highways.
4. A Nevada CLP may be issued only if the applicant ALSO:
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Correct answer: Holds a valid underlying base driver license from the same jurisdiction
A CLP may only be issued if the applicant also holds a valid underlying base license (commercial or non-commercial) from the same jurisdiction. The CLP carries a restriction stating it is only valid when accompanied by that base license.
5. After your Nevada CLP is issued, how long must you hold it before you may take the CDL skills test?
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Correct answer: 14 days from the date of initial issuance
A CLP is required to be issued a CDL and must be held for 14 days from the date of initial issuance before taking the skills test.
6. Which endorsements are the ONLY ones Nevada allows on a commercial learner permit (CLP)?
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Correct answer: Passenger (P), School Bus (S), and Tank (N)
The only endorsements allowed on a commercial learner permit are P (Passenger), S (School Bus), and N (Tank vehicle).
7. What is the minimum age to drive an over-length combination vehicle (70 feet) with a Nevada CDL?
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Correct answer: 25 years old
Nevada requires a driver to be 25 years of age or older to drive an over-length combination vehicle (70 feet), even though the interstate minimum for a standard CMV is 21.
8. If your Nevada CLP has been expired for 30 days or more, you must:
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Correct answer: Retake all applicable knowledge tests to renew the CLP
Any applicant with a CLP that is expired for 30 days or more must retake all applicable knowledge tests to renew the CLP.
9. When you renew a Nevada CLP for a SECOND time, what happens?
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Correct answer: All applicable knowledge tests must be retaken, and no skills-test portions can be banked
If you renew your CLP a second time, all applicable knowledge tests must be retaken. When renewing a CLP, no portions of the skills test can be banked.
10. A Nevada CDL issued to an applicant under age 65 expires:
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Correct answer: Eight years from the date of issuance
Original issuance and renewals for applicants under age 65 are issued a card that expires eight years from the date of issuance. Applicants 65 and older receive a card that expires four years from their date of birth.
11. If drivers react a half-second slower because of distractions, crashes:
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Correct answer: Double
If drivers react a half-second slower because of distractions, crashes double. Being totally familiar with your electronics, pre-programming devices, and planning your route before driving all help you stay focused.
12. What is the best way to handle a cell-phone call while driving a commercial vehicle?
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Correct answer: Pull off the road in a safe, legal place to make or receive the call
When possible, pull off the road in a safe, legal place to make or receive a call, and do not place a call while driving. Federal rules prohibit hand-held mobile phone use and texting while driving a CMV.
13. Even a hands-free communication device is:
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Correct answer: Still unsafe to use while you are moving down the road
Some jurisdictions allow only hands-free devices while driving, but even these are unsafe to use while you are moving. Keep any needed calls short, and hang up in tricky traffic situations.
14. How should you handle another driver who appears to be distracted?
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Correct answer: Give them plenty of room, keep a safe following distance, and be very careful passing
Watch for vehicles that drift, travel at inconsistent speeds, or whose drivers are preoccupied. Give a distracted driver plenty of room, keep your safe following distance, and be very careful when passing — they may not know you are there.
15. What is the difference between aggressive driving and road rage?
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Correct answer: Aggressive driving is selfish, pushy operation; road rage is intent to harm another person
Aggressive driving is operating a motor vehicle in a selfish, bold, or pushy manner without regard for others’ rights or safety. Road rage is operating a vehicle with the intent to harm others or physically assault a driver or their vehicle.
16. What should you do when confronted by an aggressive driver?
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Correct answer: Make every attempt to get out of their way, avoid eye contact, and do not challenge them
First and foremost, make every attempt to get out of their way. Put your pride aside — do not challenge them by speeding up, avoid eye contact, ignore gestures, and report aggressive drivers to the authorities when you can do so safely.
17. What is one way to keep from becoming an aggressive driver yourself?
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Correct answer: Be realistic about your travel time and expect delays from traffic, construction, or weather
Reduce your stress before and while you drive: be realistic about travel time and allow for delays, give other drivers the benefit of the doubt, keep your following distance reasonable, and avoid gestures — keep your hands on the wheel.
18. What is the most important reason for inspecting your vehicle?
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Correct answer: Safety — for yourself and for other road users
Safety is the most important reason you inspect your vehicle — safety for yourself and for everyone else on the road. A vehicle defect found during inspection can prevent a crash or breakdown.
19. A pre-trip inspection is done for what main purpose?
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Correct answer: To find problems that could cause a crash or breakdown before you drive
A pre-trip inspection helps you find problems that could cause a crash or breakdown. On the CDL skills test you must show you know whether the vehicle is safe to drive.
20. What is the minimum tread depth for the front tires of a commercial vehicle?
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Correct answer: 4/32 inch
Front tires must have at least 4/32 inch of tread depth in every major groove. Bad wear on the front tires is especially dangerous because it makes the vehicle harder to steer and stop.
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