Soil Mechanics and Foundation Engineering

321. Toughness index is defined as the ratio of

1. Plasticity index to consistency index
2. Plasticity index to flow index
3. Liquidity index to flow index
4. Consistency index to liquidity index

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322. Transporting and re-depositing soils, is done by

1. Water
2. Glacier
3. Gravity
4. All the above

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323. Unconfmed compressive strength test is

1. Undrained test
2. Drained test
3. Consolidated undrained test
4. Consolidated drained test

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324. Under-reamed piles are generally

1. Driven piles
2. Bored piles
3. Precast piles
4. All the above

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325. Uniformity coefficient of a soil is

1. Always less than 1
2. Always equal to 1
3. Equal to or less than 1
4. Equal to or greater than 1

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326. Valid range for n, the percentage voids, is

1. 0 < n < 100
2. 0 < n < 100
3. n > 0
4. n < 0

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327. Valid range for S, the degree of saturation of soil in percentage is

1. S > 0
2. S < 0
3. 0 < S < 100
4. 0 < S < 100

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328. Voids ratio of a soil mass can

1. Never be greater than unity
2. Be zero
3. Take any value greater than zero
4. Take values between 0 and 1 only

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329. W is the weight of soil having a moisture content w. If V is the volume of proctor's mould, the dry density of the soil is

1. WV/(1 + w)
2. V/w (1 + w)
3. W/V(1 + w)
4. V (1 + w)/W

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330. Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from

1. 80° to 90°C
2. 90° to 95°C
3. 103° to 105°C
4. 105° to 110°C

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