Placarding第 60 / 80 题
When must a placarded vehicle keep placards displayed?
a.Only when fully loaded
b.From the time it is loaded until it is unloaded and cleaned or purged
c.Only during business hours
d.Only on highways
解析
Placards must stay on the vehicle from loading until the hazardous material is unloaded and the container is cleaned, purged, or reloaded with non-hazardous material. An empty but uncleaned tank may still require placards. Remove placards only when they no longer apply.
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同考点相关题目
- What must you do if a required placard is lost or damaged during a trip?
- How close can a placard be to other signs or markings on the vehicle?
- What color is the flammable liquid (Class 3) placard?
- Why must a driver check that placards match the shipping papers?
- What is required for a placard's durability and appearance?
- If a shipment does not require placards, may the driver still need a hazmat endorsement?