Colorado CDL Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

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Question: 1 / 400

When must a full stop be made at railroad crossings?

Only when a train is approaching

While driving a school bus or hazardous materials

A full stop must be made at railroad crossings specifically when driving a school bus or a vehicle carrying hazardous materials. The rationale behind this requirement is rooted in safety. School buses are responsible for the safety of children, and stopping at railroad crossings decreases the risk of accidents by ensuring that the driver checks for oncoming trains before proceeding. Similarly, vehicles transporting hazardous materials are subject to stricter regulations because a collision involving them could lead to significant dangers, such as spills or fires.

Other vehicles may be required to slow down and check for trains, but the law mandates a complete stop only for those specific types of vehicles. This reflects a heightened level of caution and responsibility that stems from the potential consequences of an accident involving more vulnerable passengers or dangerous cargo.

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At all times, regardless of vehicle type

When driving any commercial vehicle

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