Question When transporting cargo, drivers must check the securement of the cargo every: Answers 10 miles. 150 miles. 500 miles. Explanation The securement of cargo must be checked before beginning a trip, within the first 50 miles of a trip, and then again every three hours or 150 miles thereafter. Take a FREE Practice Test Now This questions appears in the following tests: Connecticut Knowledge Test Class A , Kentucky Knowledge Test Class A , Alaska Knowledge Test Class B , Missouri Knowledge Test Class B , Idaho Double ,