In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear

A sink contains exactly 12 liters of water. If water is drained from the sink until it holds exactly 6 liters of water less than the quantity of water drained away, how many liters of water were drained away ?

A

2

B

3

C

9

D

6

In a deposit of normally consolidated clay

A

effective stress increases with depth but water content of soil and un-drained strength decrease with depth

B

effective stress and water content increase with depth but undrained strength decreases with depth

C

effective stress and undrained strength increase with depth but water content decreases with depth

D

effective stress, water content and undrained strength decrease with depth

For a loose sand sample and a dense sand sample consolidated to the same effective stress

A

ultimate strength is same and also peak strength is same

B

ultimate strength is different but peak strength is same

C

ultimate strength is same but peak strength of dense sand is greater than that of loose sand

D

ultimate strength is same but peak

The strain energy stored in a body due to shear stress, is (where $$\tau $$ = Shear stress, C = Shear modulus and V = Volume of the body)

A

$$\frac{{\tau {\text{V}}}}{{2{\text{C}}}}$$

B

$$\frac{{2{\text{C}}}}{{\tau {\text{V}}}}$$

C

$$\frac{{{\tau ^2}{\text{V}}}}{{2{\text{C}}}}$$

D

$$\frac{{2{\text{C}}}}{{{\tau ^2}{\text{V}}}}$$

A tri-axial shear test is preferred to direct shear test, because

A

It can be performed under all three drainage conditions with complete control

B

Precise measurement of pore pressure and change in volume during test, is not possible

C

Stress distribution on the failure plane, is non uniform

D

None of these

While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful:

A

Pile formation

B

Raft foundation

C

Grillage foundation

D

None of these

Which of the following clay mixing devices is vacuum operated for deairation of clay?

A

Banbery mixer

B

Pug mill

C

Muller-mixer

D

None of these

A dry soil sample weighing 100 g has volume of 60 ml and specific gravity 2.5. Its void ratio is

A

0.4

B

0.5

C

0.6

D

0.8

In the triaxial compression test, the application of additional axial stress (i.e. deviator stress) on the soil specimen produces shear stress on

A

horizontal plane only

B

vertical plane only

C

both horizontal and vertical planes

D

all planes except horizontal and vertical planes

An empty swimming pool can be filled to capacity through an inlet pipe in 3 hours, and it can be completely drained by a drainpipe in 6 hours . If both pipes are fully open at the same time , in how many hours will the empty pool be filled to capacity?

A

4

B

6

C

5

D

5.5

In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear

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