CDL Hazardous Materials Hazmat Practice Test 2

Question 1

Which document must be immediately accessible to emergency responders in the event of a hazardous materials incident?

Accepted Answer

Shipping papers describing the hazmat on board

Answer

The driver's medical certificate and log book

Answer

The vehicle's last annual inspection report

Answer

The carrier's insurance policy number and contact information

Question 2

What does the hazardous materials placard number system tell emergency responders?

Accepted Answer

The four-digit UN/NA identification number that identifies the specific hazardous material

Answer

The weight in kilograms of the hazardous material in the vehicle

Answer

The driver's hazmat endorsement certification number

Answer

The maximum speed at which the vehicle may travel on public roads

Question 3

When must hazardous materials shipping papers be tagged with the word 'DANGEROUS'?

Accepted Answer

When two or more hazardous materials from different hazard classes are listed, the shipper may use DANGEROUS instead of listing each material separately, if the total quantity does not exceed 1,001 lb and certain other conditions are met

Answer

Whenever any hazardous material is present, DANGEROUS must appear on every shipping paper

Answer

Only when transporting Class 1 explosives or Class 7 radioactive materials

Answer

Only when the vehicle is required to stop and notify authorities before crossing state lines

Question 4

Which class of hazardous materials requires special routing to AVOID tunnels whenever possible?

Accepted Answer

Class 1 Explosives and certain Class 2 gases, Class 3 flammables, and other classes as required by the Hazardous Materials Regulations

Answer

Class 8 Corrosives only, because they can damage tunnel infrastructure

Answer

Class 7 Radioactive materials only, due to public health concerns

Answer

Class 9 Miscellaneous hazardous materials when transported in quantities over 1,000 lb

Question 5

How far must a driver park from a tunnel, bridge, or building while transporting certain hazardous materials and waiting for traffic to clear?

Accepted Answer

300 feet from the nearest rail of a railroad crossing, bridge, or tunnel entrance

Answer

100 feet from any structure, including tunnels and bridges

Answer

500 feet from any building with a permanent occupancy

Answer

There is no specific distance; the driver uses professional judgment

Question 6

What is the primary purpose of the Emergency Response Guidebook (ERG)?

Accepted Answer

To help emergency responders quickly identify hazardous materials and take initial safety actions during the first 30 minutes of an incident

Answer

To provide drivers with a checklist for completing hazmat shipping papers before departure

Answer

To list all hazmat routes approved by the DOT for commercial motor vehicles

Answer

To document the driver's emergency training certifications for roadside inspectors