Which of the following statements is incorrect?

Soil Mechanics and Foundation Engineering MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

Soil Mechanics and Foundation Engineering

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Subject
Soil Mechanics and Foundation Engineeringcivil-engineering-mcqs › soil-mechanics-and-foundation-engineering
Published
12 Jan 2019
Last updated
28 May 2026

Browse all Soil Mechanics and Foundation Engineering MCQs

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Explanation

Option A is incorrect because effective cohesion in soils can, in some cases, have negative values due to certain soil conditions. Options B, C, and D are accurate: coarse-grained soils typically have effective friction angles above 30°, the friction angle tends to increase with soil compaction, and it is influenced by mineralogy and clay content.

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