What is the recommended maximum grade for a highway to ensure vehicle performanc

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Question: What is the recommended maximum grade for a highway to ensure vehicle performance?

Options:

Correct Answer: 6%

Solution:

A maximum grade of 6% is generally recommended for highways to ensure that vehicles can maintain speed without excessive strain.

What is the recommended maximum grade for a highway to ensure vehicle performance?

What is the recommended maximum grade for a highway to ensure vehicle performance?

Step 1: Understand what 'grade' means. Grade refers to the steepness of a road, usually expressed as a percentage.
Step 2: Know that a 6% grade means that for every 100 units of horizontal distance, the road rises 6 units vertically.
Step 3: Recognize that steeper grades can make it harder for vehicles to maintain speed, especially for larger or heavier vehicles.
Step 4: Learn that a maximum grade of 6% is recommended because it allows most vehicles to perform well without straining their engines.
Step 5: Remember that this recommendation helps ensure safety and efficiency on highways.

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