Inspection

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Commercial Driver's License (General Knowledge) › Inspection

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1

Under which of the following conditions is it safe to remove the radiator cap on your vehicle?

The entire engine system is completely cooled

The radiator is undamaged and the engine is warm

The engine is not overheated, but the engine has been in recent use

None of these; the radiator cap should never be removed

Explanation

In order for it to be remotely safe to remove your radiator cap, the entire engine system must be completely cooled. Even in that condition, removing the radiator cap should be only be done with extreme caution.

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