(111/133) Blood alcohol content (BAC) depends on each of the following, except:
Accuracy: 0.0%
AI Difficulty: 3
Explanation
AI Difficulty Assessment
3
Question Analysis
The Texas DPS Class C knowledge test covers alcohol and drug effects on driving. According to the Texas Driver Handbook, a person's blood alcohol concentration (BAC) is determined by factors such as the amount of alcohol consumed, body weight, and the time elapsed between drinks. The handbook explicitly states that BAC depends on these factors, but physical fitness is not listed as a factor affecting BAC. The liver metabolizes alcohol at a relatively constant rate regardless of fitness level, so being physically fit does not change how alcohol is processed or how high BAC rises.
Correct Answer Analysis
Correct Answer: How physically fit you are.
How physically fit you are is the correct answer because physical fitness does not influence BAC. The Texas Driver Handbook notes that BAC is affected by the number of drinks, body weight, and time between drinks, but not by a person's level of physical fitness. The body eliminates alcohol at a steady rate (about one drink per hour) regardless of fitness, so fitness level does not change BAC.
Wrong Options Analysis
Option: Your body weight.
Body weight is a factor because a heavier person has more body water, which dilutes alcohol, leading to a lower BAC for the same amount of alcohol consumed compared to a lighter person.
Option: How much you drink.
The amount of alcohol consumed directly affects BAC; more drinks increase BAC proportionally, as stated in the Texas Driver Handbook.
Option: How much time passes between drinks.
Time between drinks matters because the liver metabolizes alcohol over time. More time allows the body to eliminate alcohol, lowering BAC, while rapid drinking raises BAC faster.
About this Texas Class C License question
This question is part of the America Texas (TX) Class C License knowledge test question bank. Read the explanation above, then browse more questions on the same topic below.
Confirm the rule in the official source: Texas Driver Handbook (DL-7)
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