Arkansas Commercial Driver License (CDL) Practice Test

The correct answer highlights the importance of checking cargo security to ensure safety during transportation. After the first 25 miles, it's crucial to check cargo, as this is the distance where initial shifting can occur due to acceleration and changes in driving conditions. Following that, checking every 150 miles or every 3 hours aligns with best practices. This frequency helps to account for any potential shifts or losses that may have occurred over an extended distance or time, ensuring that the load remains secure and stable.

Maintaining proper cargo security is vital not only for the protection of the cargo itself but also for the safety of the driver and other road users. By adhering to this schedule, drivers can minimize the risk of accidents or cargo spillage, which could lead to dangerous situations on the road.