Which of the following actions would result in an automatic failure during the driving test?

Receiving a traffic citation during the driving test constitutes an automatic failure because it indicates a violation of traffic laws while demonstrating driving skills. The driving test assesses not just the ability to operate the vehicle but also adherence to traffic regulations and safe driving behaviors. If a candidate receives a citation, it reflects a serious infraction that undermines their ability to safely navigate the road in compliance with the law.

In contrast, while turning without signaling may result in a deduction of points, it does not automatically disqualify a driver from passing. Similarly, driving under the speed limit is often acceptable as it can be safer than speeding, depending on the context. Parked vehicle obstruction does not inherently indicate unsafe driving if managed properly during the test and usually comes into play as a scenario that can be evaluated.