Which of the following methods is more suitable for the determination of permeability of clayey soil ?

Which of the following methods is best suited for determination of permeability of coarse-grained soils ?

A

constant head method

B

falling head method

C

both the above

D

none of the above

The most suitable equipment for compacting clayey soils is a

A

smooth wheeled roller

B

pneumatic tyred roller

C

sheep foot roller

D

vibrator

The maximum permissible differential settlement, in case of foundations in clayey soil, is usually limited to

A

10 mm

B

20 mm

C

30 mm

D

40 mm

Substances which have permeability less than the permeability of free space are known as

A

Ferromagnetic

B

Paramagnetic

C

Diamagnetic

D

Bipolar

For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass ?

A

oven drying method

B

sand bath method

C

alcohol method

D

calcium carbide method

Which of the following methods is most accurate for the determination of the water content of soil ?

A

oven drying method

B

sand bath method

C

calcium carbide method

D

pycnometer method

The minimum depth of foundation in clayey soils is

A

0.5 m

B

0.7 m

C

0.9 m

D

1.2 m

The maximum total settlement for isolated foundations on clayey soils should be limited to

A

25 mm

B

40 mm

C

65 mm

D

100 mm

The maximum total settlement for raft foundation on clayey soils should be limited to

A

25 mm

B

25 to 40 mm

C

40 to 65 mm

D

65 to 100 mm

Coefficient of permeability of soil

A

does not depend upon temperature

B

increases with the increase in temperature

C

increases with the decrease in temperature

D

none of the above

Which of the following methods is more suitable for the determination of permeability of clayey soil ?

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