Philadelphia Drivers License Practice Test

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Prepare for the Philadelphia Drivers License Test. Challenge yourself with multiple-choice questions and detailed explanations. Ace your exam and hit the road with confidence!

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What is the legal blood alcohol content (BAC) limit for drivers over 21 in Pennsylvania?

0.05%
0.10%
0.08%
0.12%

The correct answer is: 0.08%

In Pennsylvania, the legal blood alcohol content (BAC) limit for drivers over the age of 21 is set at 0.08%. This means that if a driver has a BAC at or above this threshold, they can be charged with driving under the influence (DUI). The limit is established to help ensure public safety, as higher levels of alcohol in the bloodstream impair judgment, coordination, and reaction times, significantly increasing the likelihood of accidents. Drivers under 21 are subject to a zero-tolerance law, which means they cannot have any measurable amount of alcohol in their system while driving. This lower threshold reflects the state’s commitment to discouraging underage drinking and driving. Higher BAC limits, as suggested in some of the other choices, would not align with the laws designed to measure and reduce impaired driving in the interest of safety for all road users.