Colorado Driver's Examination

HazMat #1

FREE Online Hazmat Test | DMV Colorado 2024

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 2021, 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.

Number of Question 30

Passing Score 24

Number of Tests 20

1 . If transporting chlorine, what must be in the vehicle?

A gas mask

Goggles

An axe

A cell phone

A driver transporting chlorine in cargo tanks must have an approved gas mask in the vehicle, as well as an emergency kit for controlling leaks in dome cover plate fittings on the cargo tank.

2 . A person supervising the loading of a tank:

Does not have to be able to move the vehicle.

Must be a licensed firefighter.

Does not need to know about the materials being loaded.

Must stay within 25 feet of the tank.

The loading and unloading of a tank must be watched by a qualified person. They must be alert; have a clear view of the tank; stay within 25 feet of the tank; know the hazards of the materials involved; know the procedures to follow in an emergency; and be authorized and able to move the tank if necessary.

3 . To complete a Uniform Hazardous Waste Manifest, you must:

Sign by hand.

Sign, but only if you cross into another state.

Sign, but only if the weather was hazardous.

Have a witness sign.

A Uniform Hazardous Waste Manifest must be signed by hand. The name and EPA registration number of the shippers, carriers, and destination must also appear on the manifest.

4 . Flammable gases are categorized as ____ hazards.

Class 1

Class 2

Class 4

Class 7

Flammable gases are assigned to hazardous materials Class 2.

5 . When a driver is not in their vehicle, hazardous materials' shipping papers should be:

Kept on the driver's person.

Kept on the driver’s seat.

Kept under the passenger’s seat.

Placed on the dashboard.

Shipping papers for hazardous materials should always be easily accessible. When a driver is not in their vehicle, hazardous materials' shipping papers should be left on the driver's seat.

6 . Which agency helps coordinate emergency response to chemical hazards?

The National Response Center

The Federal Containment Organization

The United Center for Chemical Assistance

The National Transportation Network

As a resource to police and firefighters, the National Response Center helps coordinate emergency response to chemical hazards.

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2024 Colorado | Frequently Asked Questions

To secure a CDL Doubles/Triples endorsement in Colorado, you must already hold a valid CDL. You'll need to pass a knowledge test on handling large trucks with multiple trailers. After passing, the endorsement will be added to your CDL. Remember, this endorsement does not cover the operation of motorcycles or school buses.

To obtain a Colorado CDL Doubles/Triples license, you should first have a valid Colorado CDL. Then, you'll need to pass the Doubles and Triples endorsement test. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and handling. After passing the test, the endorsement will be added to your CDL.

While Colorado doesn't specifically require specialized training for a CDL Doubles/Triples endorsement, it's highly recommended. Training can ensure you're prepared for the knowledge test and safe operation of these vehicles. Experience driving a single trailer truck may also be beneficial, but isn't required. The key requirement is passing the endorsement knowledge test.

Yes, to obtain a CDL Doubles/Triples endorsement in Colorado, you must pass a written knowledge test. This exam focuses on the safe operation and handling of large trucks with multiple trailers. It's important to study thoroughly, using resources like the Colorado CDL Handbook, to ensure success on this test.

For the CDL Doubles/Triples endorsement in Colorado, you're not required to perform a skills or road test. The endorsement solely requires passing a written knowledge test. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and managing the vehicles on the road. Practical skills are important for safe driving but aren't formally tested for this endorsement.

No, it is not permissible to operate double or triple trailers in Colorado without a valid CDL Doubles/Triples endorsement. This endorsement is necessary to ensure that drivers have the specialized knowledge and skills required to safely operate such vehicles. Driving without the proper endorsement can result in legal penalties.

In Colorado, you can add the CDL Doubles/Triples endorsement to your existing commercial driver's license. You don't need to initiate a new application for a separate license. However, you must pass the written knowledge test specific to doubles/triples operation. After passing, the endorsement is added to your current CDL.

Yes, even with a CDL Doubles/Triples endorsement, Colorado drivers must adhere to specific rules. These include a maximum trailer length of 28.5 feet for each unit in a set of doubles, and the total weight of all units combined cannot exceed 80,000 lbs. Also, drivers must follow all federal and state transportation laws, including hours of service regulations.

In Colorado, the maximum legal weight for a vehicle, including double or triple trailers, is 80,000 pounds. The maximum length for a single trailer is 57 feet 4 inches. For double/triple trailers, the combined length should not exceed 100 feet. However, these restrictions may vary depending on road and bridge limits.

Yes, safety is paramount when operating double/triple trailers. Drivers must follow federal and state laws, including speed limits and hours of service regulations. They should also be well-versed in coupling and uncoupling procedures, inspecting the coupling system regularly. Additionally, they must understand the high rollover risk associated with these vehicles and ensure proper cargo distribution to prevent accidents.