Soil Mechanics And Foundation Set 2

optimum water content increases but maximum dry density decreases ✘ optimum water content decreases but maximum dry density increases ✘ both optimum water content and maximum dry density increase ✘ both optimum water content and maximum dry density decrease[ES 93] ✔

effective stress increases with depth but water content of soil and un-drained strength decrease with depth ✘ effective stress and water content increase with depth but undrained strength decreases with depth ✘ effective stress and undrained strength increase with depth but water content decreases with depth ✘ effective stress, water content and undrained strength decrease with depth ✔

oven drying method ✘ sand bath method ✘ calcium carbide method ✘ pycnometer method ✔

moisture content only ✘ amount of compaction energy only ✘ both moisture content and amount of compaction energy ✘ none of the above ✔

plasticity index to consistency index ✘ plasticity index to flow index ✘ liquidity index to flow index ✘ consistency index to liquidity index ✔

0.028 ✘ 0.28 ✘ 36 ✘ 0.036 ✔

dry of OMC and wet of OMC ✘ wet of OMC and dry of OMC ✘ wet of OMC and wet of OMC ✘ dry of OMC and dry of OMC where OMC is optimum moisture content ✔

gravel ✘ sand ✘ silt ✘ clay ✔

It can be performed under all three drainage conditions with complete control ✘ Precise measurement of pore pressure and change in volume during test, is not possible ✘ Stress distribution on the failure plane, is non uniform ✘ None of these ✔

less at edges compared to middle ✘ more at edges compared to middle ✘ uniform throughout ✘ none of the above ✔