The bridge formula:
Answer: C
Permits less maximum axle weight for axles that are closer together.
The purpose of weight limits on bridges is to protect the structural integrity and wear on the bridge. Axles that are closer together result in more weight in a smaller area than those that are farther apart, so the limit is for less weight with axles that are close together.
All choices
- APermits the same maximum axle weight for any axle.
- BPermits less maximum axle weight for the axles that are far apart.
- CPermits less maximum axle weight for axles that are closer together.
Why the other answers are wrong
A. Permits the same maximum axle weight for any axle.
The bridge formula does not permit the same maximum axle weight regardless of axle spacing.
B. Permits less maximum axle weight for the axles that are far apart.
The formula permits more maximum axle weight for axles that are farther apart, not less.
CDL General Knowledge Test Info
Questions on Exam
50
Passing Score
80%
Time Limit
Typically 60 minutes; varies by testing location
The General Knowledge test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.
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