Answer :
To determine the minimum weight when a vehicle carrying oxygen needs an oxygen placard, we must consider standard regulations for transporting hazardous materials. For substances like oxygen, regulations require a placard to be displayed on a vehicle when the weight of the material being transported reaches a certain threshold.
Here is a breakdown of the options:
- 1,100 pounds: This does not align with standard regulations for oxygen.
- 101 pounds: This is below the standard threshold for requiring a placard.
- 1,001 pounds: This is the correct threshold where a vehicle carrying oxygen must have a placard. According to regulations, when the quantity of a hazardous material like oxygen being transported reaches 1,001 pounds, a placard is necessary for safety and identification purposes.
- 1,500 pounds: This exceeds the minimum requirement for a placard.
Therefore, the minimum weight at which a vehicle carrying oxygen needs an oxygen placard is 1,001 pounds.
Here is a breakdown of the options:
- 1,100 pounds: This does not align with standard regulations for oxygen.
- 101 pounds: This is below the standard threshold for requiring a placard.
- 1,001 pounds: This is the correct threshold where a vehicle carrying oxygen must have a placard. According to regulations, when the quantity of a hazardous material like oxygen being transported reaches 1,001 pounds, a placard is necessary for safety and identification purposes.
- 1,500 pounds: This exceeds the minimum requirement for a placard.
Therefore, the minimum weight at which a vehicle carrying oxygen needs an oxygen placard is 1,001 pounds.