According to the manual, a vehicle's four-way emergency flashers may be used to:
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A.
Warn other drivers of danger or a stopped vehicle Correct
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B.
Signal that you intend to turn at the next intersection
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C.
Signal a lane change on the highway
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D.
Ask a following driver to pass
The answer is "Warn other drivers of danger or a stopped vehicle"
The manual authorizes the four-way flashers as a warning by any vehicle to signal other drivers of a possible danger or that a vehicle is stopped or disabled. Drivers who pick the turn-at-the-next-intersection answer are reaching for the single turn indicator rule, which signals an upcoming turn; the four-way flashers warn of danger, not a planned maneuver.
The traps in the wrong answers
B. Signal that you intend to turn at the next intersection
An upcoming turn is signaled with a single turn indicator on the side you are turning toward, not both flashers at once. Carries over the turn-signal rule and applies it to the hazard switch, which the manual reserves for warning of danger or a stopped vehicle.
C. Signal a lane change on the highway
A lane change is signaled with a single turn indicator, not both together. Blurs the four-way flasher into the one-sided turn signal the manual assigns to lane changes.
D. Ask a following driver to pass
The manual does not authorize hazards as a pass-invitation gesture. Reaches for an older hand-signal convention that never covered the four-way flasher.
This question tests your knowledge of Emergencies in North Carolina. Source: North Carolina Driver Handbook, "Emergency Warning Flashers," p.67..
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