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ICAR PG Agricultural Engineering And Technology 29 Jun 2024Shift 1
MCQ (Single Correct) +4 −1
The coefficient of uniformity in soil gradation is the ratio of:
मृदा श्रेणीकरण (soil gradation) में एकरूपता गुणांक (coefficient of uniformity, \(C_u\)) किसका अनुपात होता है?

In geotechnical engineering and soil mechanics:
The Coefficient of Uniformity (

\(C_u\))\lt /strong\gt is defined by Allen Hazen as the ratio of \(D_{60}\) to \(D_{10}\): \[ C_u = \frac{D_{60}}{D_{10}} \]

Where:
\(D_{60}\) is the grain diameter corresponding to 60% finer by weight.
\(D_{10}\) is the effective particle size corresponding to 10% finer by weight.
A soil is well-graded gravel if \(C_u \gt 4\), well-graded sand if \(C_u \gt 6\), and uniformly graded (poorly graded) if \(C_u \approx 1\).

मृदा यांत्रिकी में, एलन हेज़ेन के अनुसार मृदा कणों के श्रेणीकरण में एकरूपता गुणांक (\(C_u\)) \(D_{60}\) और \(D_{10}\) का अनुपात होता है (\(C_u = \frac{D_{60}}{D_{10}}\))। जहाँ \(D_{60}\) 60% महीन कणों का व्यास और \(D_{10}\) प्रभावी कण आकार है।

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