CDL General Knowledge (Colorado)

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

TL;DR

CDL General Knowledge (Colorado): 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

Accident Procedures & Fires6%
Alcohol & Other Drugs8%
Basic Control & Shifting10%
Emergency Maneuvers & Skid Control10%
Staying Alert, Fatigue & Hours of Service6%
Hazard Perception & Distracted/Aggressive Driving8%
Hazardous Materials Awareness (General Knowledge)2%
Mountain Driving4%
Night Driving & Extreme Conditions10%
Railroad-Highway Crossings4%
Seeing & Communicating8%
Speed & Space Management10%
Vehicle Inspection14%

Real Colorado 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 Colorado Department of Revenue, Division of Motor Vehicles (DMV)'s own site, verified 2026-09-03.

Administering agency

Colorado Department of Revenue, Division of Motor Vehicles (DMV)

CLP (permit) fee

$20.00

CDL license fee

$35.00

Minimum CLP hold before road test

14 calendar days

CLP validity

1 year from issuance (not renewable)

Spanish-language knowledge test

Available

The CDL Knowledge Test is available in English and Spanish, per Colorado DMV’s official CDL page (verified 2026-09-03). The Hazmat Knowledge Test is English-only. No 2025/2026 change found for Colorado.

CDL skills/road testing is conducted exclusively through DMV-approved third-party testing facilities.

5 real sample questions

On winter roads, which surfaces tend to freeze first and should be treated with extra caution?

A. Wide open highway lanes in direct sun

B. Bridges and overpasses

C. Tunnels

D. Freshly paved asphalt roads

Source: FMCSA CDL Manual §2.13

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

Same exam, other states

AK AL AR AZ CA CT DC DE FL GA HI IA ID IL IN KS KY LA MA MD ME MI MN MO MS MT NC ND NE NH NJ NM NV NY OH OK OR PA RI SC SD TN TX UT VA VT WA WI WV WY

Frequently asked questions

How many questions are on the CertQuestUSA CDL General Knowledge (Colorado) 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 (Colorado) 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 (Colorado) 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 (Colorado)?

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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