Civil Engineering - Soil Mechanics and Foundation Engineering

6. 

Pick up the in-correct statement from the following: The soils which contain montmorillonite minerals

A. swell more when wet
B. shrink more when dry
C. possess high plasticity
D. possess high coefficient of internal coefficient
E. None of these.

Answer: Option D

Explanation:

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7. 

For determing the specific gravity of soil solids, using a pycnometer of 500 cc., the following data is available : Weight of dry empty pycnometer = 125 g Weight of dried soil and pycnometer = 500 g Weight of dried soil and distilled = 850 g water filled in pycnometer up to top The specific gravity of soil soilds, is

A. 2.0
B. 2.25
C. 2.50
D. 2.75

Answer: Option C

Explanation:

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8. 

Pick up the correct statement from the following:

A. Kaolinite is most stable clay
B. Kaolinite shows a very little sign of swelling on wetting
C. Kaolinite when wet, becomes moderately plastic because negative electro magnetic charges on platelets attrack water
D. Kaolinite is also called China clay
E. All the above.

Answer: Option E

Explanation:

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9. 

A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is

A. 100 tonnes
B. 50 tonnes
C. 20 tonnes
D. 10 tonnes.

Answer: Option D

Explanation:

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10. 

If the specific gravity and voids in soil sample are G and e respectively, the hydraulic gradient i, is

A.
B.
C.
D.

Answer: Option A

Explanation:

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