meta-pixelTo determine if you need to use placards, which of the following do you NOT need to know?
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Question:

To determine if you need to use placards, which of the following do you NOT need to know?

Answer: The manufacturing date of the materials

Explanation
You do not need to know when a product is manufactured or has expired unless your company has an additional responsibility. You do need to know the amounts of the hazardous materials being shipped, their hazard classes, and the total amount of all the hazardous materials of all the hazard classes on your commercial vehicle.
This question is in Section 2: Hazmat & Passenger Vehicles of our CDL Test Guide. Explore now!
Related Question

Question: Which of these best describes how you should use the brake pedal on a steep downhill grade?

1. Repeated strong pressure then release.

2. Light, pumping action.

3. Release the brake when you ae 5 MPH below your safe speed, then let your speed come back up to your safe speed and repeat again, (bring speed down 5 MPH below your safe speed.)

Release the brake when you ae 5 MPH below your safe speed, then let your speed come back up to your safe speed and repeat again, (bring speed down 5 MPH below your safe speed.)

Question: A railroad crossing is ahead of you and you are hauling hazardous material. When you stop for the crossing, you can stop as far away as _____ feet from the nearest rail.

50.

Question: The driver must be able to see a low air pressure warning which comes on before pressure in the service air tanks fall below ____ psi.

60

Question: Describe what the trailer air supply control does.

It is used to supply the trailer with air, shut the air off, and apply the trailer emergency brakes.

Question: What should you check to be sure it is solid, clear of objects, and securely bolted to the tractor frame?

Catwalk

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