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Question:

How should manhole covers be?

A closed before you drive the vehicle.
explanation

Close all manholes and valves before moving a tank of hazardous materials, no matter how small the amount in the tank or how short the distance. Manholes and valves must be closed to prevent leaks. [Commercial Driver License Manual]

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Comments

Alkam 2126

4 years ago

It a great app to study for your CDL tests

Cbow33

4 years ago

Great app

Livvy2u

4 years ago

Mom

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