Placarding第 50 / 80 题
How must placards be positioned on a vehicle?
a.Upside down
b.Hidden behind the mud flaps
c.Lying flat on the hood
d.So they are readable, with words or numbers level and reading from left to right
解析
Placards must be turned so the diamond points up and down and the numbers and words read correctly from left to right. They must be clean, not damaged, and clearly visible. Placards must be at least 3 inches away from other markings that could confuse responders.
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