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CDL General Knowledge (Arizona)

First published: September 3, 2026Last verified: September 3, 2026Reviewed by the CertQuestUSA team
TL;DR

CDL General Knowledge (Arizona): a 124-question practice bank for the real CDL Permit & Endorsement Exams standard, 2 full papers of 50 questions each with no repeats, every question citing the real regulation it comes from.

Where these questions come from

Every question in this bank cites a real source -- primarily FMCSA CDL Manual (77%) and 49 CFR (23%) of this exam's citations.

Not sure where you stand? Take the free diagnostic — 10 real questions across the exam's domains, no sign-up required, with a domain-by-domain breakdown at the end.
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2
full papers, no repeats
50
questions per paper
124
questions in the bank
What this exam covers
Real Arizona CDL requirements

The knowledge tested here is federal (FMCSA) and identical nationwide -- what varies by state is who administers it and under what terms. Researched directly from Arizona Department of Transportation, Motor Vehicle Division (ADOT MVD)'s own site, verified 2026-09-03.

Administering agency
Arizona Department of Transportation, Motor Vehicle Division (ADOT MVD)
CLP (permit) fee
Class A or B: $25.00; Class C: $12.50
CDL license fee
Class A or B: $25.00; Class C (with P endorsement or HME): $12.50
Minimum CLP hold before road test
14 days
CLP validity
Up to 12 months
Retake wait after a failed knowledge test
Must wait until the next business day to retake a failed knowledge test
Spanish-language knowledge test
Available

ADOT’s general knowledge-test language page lists Spanish among 11 supported languages; this is not stated as CDL-specific, and no 2025/2026 Arizona-specific change was found. Worth a direct confirmation call before relying on this for CDL specifically.

5 real sample questions
Under 49 CFR 392.5, a driver who has consumed an alcoholic beverage within a specified number of hours before going on duty is prohibited from driving. What is that specified period?
A. 1 hour
B. 4 hours
C. 8 hours
D. 24 hours
Source: 49 CFR 392.5
Under the federal tire tread depth standard, what is the minimum tread depth allowed in any major tread groove on a steering axle tire?
A. 1/32 inch
B. 2/32 inch
C. 4/32 inch
D. 6/32 inch
Source: 49 CFR 393.75
What is the most important reason for performing a pre-trip inspection before every trip?
A. To satisfy your dispatcher that the truck left on time
B. To find problems that could cause a crash or breakdown before they happen on the road
C. To reduce the number of miles logged for the day
D. To avoid having to fill out any paperwork later
Source: FMCSA CDL Manual §2.1.1
A roadside inspector determines that a commercial motor vehicle has a safety defect serious enough to be an immediate hazard. What is the inspector authorized to do under 49 CFR 396.9?
A. Issue a warning only, since only the motor carrier can pull a vehicle from service
B. Declare the vehicle "out of service" until the defect is corrected
C. Impound the vehicle permanently
D. Fine the driver but allow the vehicle to continue to the next scheduled stop
Source: 49 CFR 396.9
What is the minimum tread depth required on non-steering axle tires of a commercial motor vehicle?
A. 1/32 inch
B. 2/32 inch
C. 3/32 inch
D. 4/32 inch
Source: 49 CFR 393.75
Same exam, other states
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Frequently asked questions

How many questions are on the CertQuestUSA CDL General Knowledge (Arizona) practice test?
124 questions total, split into 2 full papers of 50 each with no repeats across papers.
What topics does the CDL General Knowledge (Arizona) test cover?
13 domains, with the heaviest weight on Vehicle Inspection (14%), Basic Control & Shifting (10%), and Emergency Maneuvers & Skid Control (10%).
Where do CertQuestUSA's CDL General Knowledge (Arizona) questions come from?
Primarily FMCSA CDL Manual (77%) and 49 CFR (23%) of this bank's citations -- computed directly from this exam's own question sources, not a generic description.
Is there a free diagnostic for CDL General Knowledge (Arizona)?
Yes -- 10 real questions across the exam's domains, no sign-up required, with a domain-by-domain breakdown at the end.
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