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BDifficulty 1/5

A driver gives a clearly perceptible prescribed arm signal for a left turn, but the right indicator remains on. Which optical signal takes precedence?

Correct answer

The one made with the arm.

The arm signal, if perceptible to other road users. Article 108 states that it overrides any contradictory optical signal. Correct the wrong indicator and check safety before manoeuvring: signalling grants no priority. Audible warnings have specific authorised uses under article 110 and do not indiscriminately replace optical signals for every manoeuvre.

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All options

  • The light signal.

  • It depends on the traffic.

  • The one made with the arm.

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