HazMat HazMat Placarding and Labeling 2 — Questions and Answers
Question 1: What is the minimum size for a HazMat placard?
- 100 mm on each side
- 150 mm on each side
- 250 mm (approximately 9.84 inches) on each side (Correct answer)
- 300 mm on each side
Correct answer: 250 mm (approximately 9.84 inches) on each side
Federal regulations require HazMat placards to be at least 250 mm (9.84 inches) on each side.
Question 2: Which class of HazMat requires a DANGEROUS placard instead of a specific class placard?
- Any single class over 1,000 lbs
- Two or more classes of Table 2 materials where no single class is 1,001 lbs or more (Correct answer)
- Class 9 miscellaneous materials only
- Explosives in transit
Correct answer: Two or more classes of Table 2 materials where no single class is 1,001 lbs or more
A DANGEROUS placard may be used when you have two or more categories of Table 2 hazardous materials and no single category reaches 1,001 lbs.
Question 3: What color is the background of a FLAMMABLE placard?
- White
- Yellow
- Red (Correct answer)
- Orange
Correct answer: Red
Flammable placards have a red background to indicate fire hazard, consistent with the international color-coding system.
Question 4: When transporting a small amount of HazMat that does not require a placard, what must still be displayed?
- Nothing is required
- A HAZMAT sign on the rear
- Proper shipping name and UN number markings on packages (Correct answer)
- An orange panel
Correct answer: Proper shipping name and UN number markings on packages
Even when placards are not required, packages must still have proper shipping name, hazard class, and UN/NA identification number markings.
Question 5: What do the four-digit numbers on an orange panel or placard identify?
- The shipper's account number
- The UN/NA identification number for the specific material (Correct answer)
- The vehicle's permit number
- The weight of the hazardous cargo
Correct answer: The UN/NA identification number for the specific material
The four-digit UN or NA identification number on an orange panel or placard identifies the specific hazardous material being transported.
Question 6: A CORROSIVE placard has what distinctive feature?
- Flame symbol on red background
- Skull and crossbones on white background
- Test tubes dripping onto a hand and metal on white/black background (Correct answer)
- Propeller symbol on yellow background
Correct answer: Test tubes dripping onto a hand and metal on white/black background
Corrosive placards depict test tubes dropping liquid onto a hand and a metal surface to indicate the material destroys living tissue and metals.
HazMat HazMat Placarding and Labeling 2
What is the minimum size for a HazMat placard?