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QuestionOther Subjects
"You see a sign posted on a highway underpass that lists a measurement of 12'- 6''. What does it mean?
A. It tells you how far away the next intersection is.
B. A following distance of 12'6'' is recommended.
C. Vehicles must be shorter than 12'6'' to pass.
D. 12'6'' is the minimum height for trucks using that road."
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Understand the notation
The notation "12'- 6''" represents a height measurement using feet (') and inches (''). - 12' means 12 feet - 6'' means 6 inches
Step 3:: Convert the measurement
12 \text{ feet } + \frac{6}{12} \text{ feet} = 12.5 \text{ feet}
To understand the full meaning, let's convert this to a single measurement:
Step 4:: Interpret the sign's purpose
This is a standard highway clearance sign indicating the maximum vertical height allowed for vehicles passing under the underpass.
Step 5:: Analyze the options
A. Incorrect - This is not about distance to an intersection B. Incorrect - This is not about following distance C. Correct - Vehicles taller than 12'6'' cannot pass under this underpass D. Incorrect - This is the maximum height, not the minimum
Final Answer
Vehicles must be shorter than 12'6'' to pass. Key Insight: Highway clearance signs are critical safety markers that prevent oversized vehicles from attempting to pass under bridges or through underpasses that are too low, which could cause serious accidents.
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