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A soil classified as gravel with Cc between 1 and 3 will be classified as… — Answer & Solution | Civexa

Soil Mechanics · Soil Classification

Soil Classification MCQ with answer and solution

A soil classified as gravel with Cc between 1 and 3 will be classified as well-graded, if

Solution

Concept

Well-graded gravel criteria

Formula

Cu ≥ 4 and 1 ≤ Cc ≤ 3

Step-by-step solution

1. For gravels, well graded needs Cu ≥ 4 and Cc between 1 and 3. 2. For sands Cu ≥ 6.

Explanation

The coefficient of uniformity requirement is 4 for gravels.

Why the other options are wrong

Cu > 6 is for sands.

Shortcut

Gravel 4; sand 6.

Common mistake

Using 6.

Correct answer: A) Cu ≥ 4

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