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When the soil is in loosest form, density index is zero and its relative compaction Rc is ______

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in Geotechnical Engineering I by (102k points)
When the soil is in loosest form, density index is zero and its relative compaction Rc is ______

(a) 40%

(b) 60%

(c) 80%

(d) 100%

The question was asked by my college professor while I was bunking the class.

Enquiry is from Density Index and Relative Compaction topic in chapter Preliminary Definitions and Relationships of Geotechnical Engineering I

1 Answer

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Best answer
The correct choice is (c) 80%

Easiest explanation: The relationship between the relative compaction Rc and density index ID is given by,

Rc=80+0.2ID

When ID=0,

Rc=80+0.2*0

Rc=80%.

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