# Civil Engineering - Soil Mechanics and Foundation Engineering

### Exercise :: Soil Mechanics and Foundation Engineering - Section 2

31.

For a clay slope of height of 10 m, the stability number is 0.05, γ = 2.0 t/m3, C = 2.5 t/m2, the critical height of the slope of the soil, is

 A. 4.0 m B. 12.5 m C. 25.0 m D. 15.0 m

Explanation:

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32.

If σ0' and σ' represent initial and increased pressure ; e0 and e void ratios corresponding to initial and increased pressure ; and C0 the compression index (dimensionless), then, the virgin compression curve as expressed by Terzaghi empirical formula is

 A. e = e0 + Cc log10 σ'/σ0' B. e = e0 - Cc log10 σ'/σ0' C. e0 = e - Cc log10 σ'/σ0' D. e0 = e + Cc log10 σ0'/σ'

Explanation:

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33.

The equation τ = C + σ tan φ is given by

 A. Rankine B. Coulomb C. Culaman D. Mohr.

Explanation:

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34.

You are given a sample of soil containing coarse grains to determine its water content, you will use

 A. pycnometer B. oven-drying method C. calcium carbide method D. alcohol method.

Explanation:

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35.

Pick up the incorrect statement from the following:

 A. Compaction has no effect on the structure of a soil B. Permeability decreases with increase in the dry density of a compacted soil C. A wet side compacted soil is more compressible than a dry side compacted soil D. Dry side compaction soils swell more when given access to moisture E. None of the these.