Accident Procedures

21 questions

All types21 Multiple choice10 True / False5 Ordering6

After a commercial motor vehicle is involved in a minor collision on the paved shoulder of a highway, the driver determines that there are no severe injuries requiring immediate casualty care. To prevent secondary collisions and properly protect the scene, which sequence of actions must the driver take immediately?

Leave the hazard flashers off, lift the hood fully open to inspect the engine compartment for leaks, and wait for law enforcement.

Activate four-way emergency flashers, secure the vehicle by setting the parking brakes, and deploy emergency warning devices within 10 minutes.

Keep the engine idling with hazard lights on, omitting reflective warning triangles since shoulder placement provides sufficient warning to oncoming traffic.

Remain inside the cab and use a hand-held mobile device to contact company dispatch before securing the vehicle or placing warning devices.

Show answer & explanation

Answer: Activate four-way emergency flashers, secure the vehicle by setting the parking brakes, and deploy emergency warning devices within 10 minutes.

Answer

The driver must activate four-way emergency flashers, secure the vehicle by setting the parking brakes, and deploy emergency warning devices within 10 minutes.

According to official CDL accident procedures and federal safety standards, the driver's immediate priority is to protect the scene. This requires activating the four-way hazard flashers, setting the parking brake to secure the vehicle, and placing the required emergency warning devices within 10 minutes to alert oncoming traffic and prevent secondary crashes.

Step-by-Step Solution

Identify the primary responsibility at a post-collision scene when there are no immediate life-threatening injuries.

The first priority is to protect the area to prevent additional accidents and safeguard approaching motorists.

Secondary crashes often cause more severe casualties and damage than the initial collision.

Apply federal commercial vehicle safety standards for securing the vehicle and placing warning devices.

Turn on four-way emergency flashers, set the parking brakes, and place three reflective warning triangles within 10 minutes.

Federal Motor Carrier Safety Regulations require deploying emergency warning devices within a 10-minute window whenever a commercial motor vehicle is stopped on the shoulder or travel lane.

Key Concept

Post-Accident Scene Protection and Emergency Warning Deployment

Estimated Time:1m 0s

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Accident Procedures

Answer

Step-by-Step Solution

Key Concept

Common Mistakes