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When the brakes are applied, a brake malfunction is indicated by what?

  1. Brake lining contacting the drum

  2. Brake lining and drum not contacting

  3. Squeaking noise

  4. None of the above

The correct answer is: Brake lining and drum not contacting

When the brakes are applied, a brake malfunction is indicated by the brake lining and drum not contacting. This means that the brakes are failing to work properly and may need to be checked by a mechanic. Options A and C are incorrect because they do not indicate a brake malfunction, but rather a functioning brake system. Option D is incorrect because it is a vague and non-descriptive answer.