Engineering :: Soil Mechanics and Foundations

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101.

When the plastic limit is equal to or greater than the liquid limit, then the plasticity index is

A.	negative	B.	zero
C.	one	D.	more than one

102.

The shrinkage index is equal to

A.	liquid limit + plastic limit	B.	plastic limit - liquid limit
C.	liquid limit - shrinkage limit	D.	shrinkage limit - liuid limit

103.

The flow index in soils indicates the

A.	ratio of liquid limit to plastic limit	B.	variation of liquid limit
C.	variation of plastic limit	D.	shear strength variation with water content

104.

The moisture contents of a clayey soil is gradually decreased from a large value. The correct sequence of the occurrence of the limits will be

A.	liquid limit, plastic limit and shrinkage limit	B.	plastic limit, liquid limit and shrinkage limit
C.	shrinkage limit, plastic limit and liquid limit	D.	plastic limit, shrinkage limit and liquid limit

105.

The clays which exhibit high activity

A.	contain montmorillonite	B.	have high plasticity index
C.	both (a) and (b)	D.	none of these

106.

The activity of clay is defined as the ratio of

A.	liquid limit to plastic limit	B.	liquidity index to plasticity index
C.	plasticity index to clay fraction	D.	plasticity index to shrinkage index

107.

The plasticity index is the ratio of liquidity index and flow index.

Right

Wrong

108.

The ratio of the liquid limit minus the natural content of a soil to its plasticity index, is known as

A.	toughness index	B.	liquidity index
C.	flow index	D.	relative consistency

109.

When the particles of soil are oriented 'edge to edge' or 'edge to face' with respect to one another, the soil is said to have

A.	single grained structure	B.	double grained structure
C.	honey-combed structure	D.	flocculent structure

110.

A soil containing continuous voids is called

permeable

impermeable