LLR Impaired and Distracted Driving

Question 1

What does BAC stand for in relation to impaired driving?

Accepted Answer

Blood Alcohol Concentration

Answer

BAC stands for Blood Alcohol Concentration, which measures the percentage of alcohol in a person's bloodstream.

Question 2

In the US, the legal BAC limit for non-commercial drivers 21 and older is:

Accepted Answer

0.08%

Answer

The legal BAC limit for non-commercial adult drivers in all 50 US states is 0.08%, above which driving is illegal.

Question 3

For drivers under 21, most states enforce a BAC limit of:

Accepted Answer

0.02%

Answer

Most states have a zero-tolerance BAC limit of 0.02% or lower for drivers under 21, reflecting stricter standards for underage drivers.

Question 4

Which factor does NOT affect how alcohol impairs driving ability?

Accepted Answer

Color of the driver's eyes

Answer

Eye color has no effect on alcohol metabolism or impairment; body weight, food intake, and amount consumed are real factors.

Question 5

Using a hand-held cell phone while driving is:

Accepted Answer

Illegal in most US states while the vehicle is in motion

Answer

Most US states prohibit hand-held cell phone use while driving a moving vehicle, as it significantly increases crash risk.

LLR - Learners License Registration Practice Test