Question

(5 pts) 1. Please answer the following either true (T) or false (F) TRUE OR FALSE All else being equal, water will flow faster through a soil layer with a low coefficient of A sample of soil with a coefficient of uniformity equal to 6.3 and coefficient of curvature permeability than through a layer with a high coefficient. equal to 2.4 must be classified as a well graded sand. The compression index, C represents the slope of the virgin consolidation curve A flexible foundation will generally have a uniform distribution of contact pressure with the soil. The Standard Penetration Test (SPT) is an effective way to estimate the strength of sand If a clay layer takes 120 days the reach 40% average consolidation, then it will take twi that time (240 days) to read 80% average consolidation. The scarp is the name given to the bottom portion slope that bulges during a landslid Compaction is used to improve the density of soil that is being moved to a new locat Clay slopes commonly fail due to rotational landslides Cone Penetration Tests (CPT) work well to measure the shear strength of sand or

Answer 1

玟-Loeff of permeability - pleasur Capacity of Soil with which the hater high.coeEF:-on-permeabill-→_higher-r OF Hou/ ex rate AnsFalse 2) For a well graded sand しー3 СС Ans

ue .- cc-Slape of the virgin- comPression curYe y True Flexible found Unifoxn Pzes Suref contact 5 But sprds also widely used alse compared to c But oerall SPT ives acceptable res ToY Sand 61 Refer the araph of Degree oF Consalidation 4 time fo ctor alse 3) Scarp Sleep-surfa ce on the upper- False 8Compaction i's used to improre the The-soil-is placed require d 0R is improve thedensitd oF embankmen t

cohesive Soils True lo) 01 CpT is now commonly used in place OF SPT erticulad for saft soils, silts Fineto medium Sands For gravels dense sandscfT ts does ield accep table re sults False