HazMat #1
Hazmat Test | Colorado 2025 #1 Page 4 of 5
On our website, we provide FREE practice - CDL hazmat test online! The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a CO CDL hazmat endorsement in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that Colorado requirements for issuing a hazmat endorsement for CDL may vary from those established in other states.
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19 . Placarded vehicles must carry fire extinguishers with a minimum rating of:
5 B:C.
The power unit of a placarded vehicle must be equipped with a fire extinguisher with an Underwriters Laboratories (UL) rating of 10 B:C or more.
20 . Identification numbers, shipping names, and hazard classes:
Should only be abbreviated on a shipping paper if the abbreviations are easy to understand.
Identification numbers, shipping names, and hazard classes must never be abbreviated when listed on a shipping paper. The only exception to this is if the abbreviation is specifically authorized in the hazardous materials regulations.
21 . If there is a collision involving a vehicle transporting Class 1 explosives, the driver should:
Remove the explosives from the vehicle before separating the vehicles involved in the collision.
If you are driving a vehicle that is transporting Class 1 explosives and it is involved in an accident, you should warn others of the danger, keep bystanders away, and not allow smoking or open fires near the vehicle. Before separating the vehicles involved in the collision, remove all explosives and place them at least 200 feet away from the vehicles and any occupied buildings.
22 . If transporting chlorine, what must be kept in the vehicle?
Directions for emergency personnel
A driver transporting chlorine in cargo tanks must keep an approved gas mask and an emergency kit in their vehicle.
23 . When transporting Division 1.1 materials, the floor liner should be:
Loose.
Use a floor lining when transporting Division 1.1, 1.2, or 1.3 materials. The floors should be tight and the liner must be made from either non-metallic material or non-ferrous metal. Non-ferrous metals are metals that do not contain iron or iron alloys.
24 . Placards must be placed:
Within three inches of other markings.
Hazardous materials placards must be positioned so any words or numbers can be read from left to right. They must be at least three inches away from any other markings.
2025 Colorado | Frequently Asked Questions
A CDL Class B license in Colorado allows the holder to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or towing vehicles not exceeding 10,000 pounds GVWR. This includes buses, farm labor vehicles, and any vehicle designed to transport 16 or more passengers including the driver.
A Class B CDL license in Colorado allows the holder to operate single vehicles with a gross vehicle weight rating of 26,001 pounds or more, and towed vehicles not exceeding 10,000 pounds. It covers vehicles like city buses, delivery trucks, dump trucks with small trailers, and large straight trucks.
To acquire a Class B CDL license in Colorado, you must be at least 18 years old (21 for interstate driving), possess a valid Colorado driver's license, pass a vision test, and successfully complete a written knowledge test. Additionally, you must pass a skills test which includes a pre-trip vehicle inspection, basic vehicle control, and on-road driving.
In Colorado, you must be at least 18 years old to qualify for a Class B Commercial Driver's License (CDL) for intrastate driving (within Colorado only). However, you must be at least 21 years old to drive a commercial vehicle across state lines, carry hazardous materials, or transport passengers.
Specific endorsements aren't necessary for a Class B CDL license but they can broaden your driving capabilities. Endorsements include: H for hazardous materials, N for tank vehicles, P for passenger vehicles, S for school buses, and T for double/triple trailers. Each endorsement requires passing a knowledge test and some require a skills test.
The Class B CDL skills assessment in Colorado includes three parts: a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving test. You must demonstrate knowledge of your vehicle and its controls, show ability to manage its operation under various traffic conditions, and ensure it's safe for the road.
Yes, Class B CDL license holders in Colorado are restricted to operating vehicles with a GVWR of 26,001 or more pounds, or towing vehicles not more than 10,000 pounds. They can also operate buses with 24 passengers or more, including the driver. However, they cannot operate Class A vehicles unless they have the appropriate endorsements.
In Colorado, the written CDL test is offered only in English. Federal regulations mandate that all CDL applicants demonstrate proficiency in English. They must be able to read, write, speak, and understand the language to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request accommodations for the Class B CDL written exam in Colorado if you have a disability. You must provide documentation of your disability and specify the type of accommodation needed. The DMV is committed to providing equal access to its services and will make reasonable accommodations in accordance with the Americans with Disabilities Act.
Yes, you can retake the Class B CDL written test in Colorado. If you fail, you must wait one day before retaking it. If you fail three times, you must wait 30 days before your next attempt. Keep in mind each retest has an associated fee and make sure to study the manual thoroughly before retaking the test.