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Question

Difficulty: EasySpatial Awareness and Blind Spot Management

While accelerating on an entrance ramp to merge onto an urban highway, a driver checks both the interior rearview mirror and the exterior side mirror. Which action must the driver perform immediately before steering into the traffic lane?

  1. Turn the head to look over the left shoulder directly into the vehicle's blind spotAnswer
  2. B
    Lean forward toward the steering wheel to expand the field of view in the exterior side mirror
  3. C
    Rely entirely on the exterior side mirror if it is equipped with a convex wide-angle section
  4. D
    Briefly flash the high-beam headlights to signal adjacent drivers to open up a space

Answer

Turning the head to look over the left shoulder directly into the blind spot.
Looking over the left shoulder provides a direct view of the area adjacent to the vehicle's rear pillar, which cannot be seen in rear-view or side mirrors. Performing this glance right before merging guarantees that the target lane is clear of traffic.

Step-by-Step Solution

1
Identify the limitations of rear-view and side mirrors.
Recognize that even properly adjusted mirrors leave areas adjacent to and slightly behind the rear quarters of the vehicle hidden from view.
Mirrors provide a limited rearward angle of vision.
2
Determine the required safety procedure prior to changing lanes or merging.
Perform a physical head check (chin-to-shoulder glance) toward the intended lane of travel.
Direct visual verification ensures no hidden vehicle, motorcycle, or vulnerable road user occupies the blind spot.

Key Concept

Blind spot management and physical shoulder checks
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Topics

Spatial Awareness and Blind Spot Management

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