Engineering :: Soil Mechanics and Foundations

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181.

The angle of internal friction of round grained loose sand is about

A.	5? to 25?	B.	25? to 30?
C.	30? to 35?	D.	32? to 37?

182.

The angle of internal friction of round grained dense sand is about

A.	5? to 25?	B.	25? to 30?
C.	30? to 35?	D.	32? to 37?

183.

The angle of shearing resistance for dry loose sand is same as that of angle of internal friction.

Right

Wrong

184.

The frictional resistance of clayey soil is

A.	less than	B.	more than
C.	same as

185.

The frictional resistance offered by sand is

A.	sliding friction	B.	rolling friction
C.	resistance due to interlocking	D.	all of these

186.

The useful method of finding the shear strength of very plastic cohesive soils is by means of

A.	cone test	B.	penetration test
C.	vane shear test	D.	torsional shear test

187.

A line showing the dry density as a function of water content for soil containing no air voids, is called

A.	saturation line	B.	zero air void line
C.	liquid limit line	D.	none of these

188.

The earth pressure at rest is defined as the lateral pressure exerted by soil

A.	when it is at rest	B.	when the retaining wall has no movement relative to the back fill
C.	when the retaining wall tends to move away from the back fill	D.	when the retaining wall moves into the soil

189.

The active earth pressure of a soil is defined as the lateral pressure exerted by soil

A.	when it is at rest	B.	when the retaining wall has no movement relative to the back fill
C.	when the retaining wall tends to move away from the back fill	D.	when the retaining wall moves into the soil

190.

The effect of cohesion on a soil is to

A.	reduce both active and passive earth pressure intensities	B.	increase both active and passive earth pressure intensities
C.	reduce active earth pressure intensity but to increase passive earth pressure intensity	D.	increase active earth pressure intensity but to reduce passive earth pressure intensity