HazMat HazMat Placarding and Labeling 3

Question 1

Which placard class number represents explosives?

Accepted Answer

Class 1

Answer

Class 1 is the hazard class for explosives, subdivided into Divisions 1.1 through 1.6 based on explosion risk.

Question 2

What must you do if you discover a placard is damaged or unreadable during a trip?

Accepted Answer

Replace the placard before moving the vehicle if safe to do so

Answer

Regulations require placards to be legible and in good condition; damaged or unreadable placards must be replaced before continuing when safe.

Question 3

Which hazard class uses a yellow background placard?

Accepted Answer

Oxidizers and organic peroxides

Answer

Oxidizers (Class 5.1) and organic peroxides (Class 5.2) use yellow background placards to indicate their oxidizing potential.

Question 4

How far must a placard be visible from?

Accepted Answer

100 feet

Answer

Placards must be visible from a distance of at least 100 feet under normal conditions to provide adequate warning to others.

Question 5

What is required when transporting Division 1.1 or 1.2 explosives?

Accepted Answer

Specific EXPLOSIVES 1.1 or 1.2 placard and no other class placard

Answer

Division 1.1 and 1.2 explosives require specific placards (EXPLOSIVES 1.1 or EXPLOSIVES 1.2) and regulations prohibit using a DANGEROUS placard for these materials.

HazMat - Hazardous Materials Endorsement Practice Test

HazMat - Hazardous Materials Endorsement Practice Test

HazMat HazMat Placarding and Labeling 3