For this problem use the Harlem Hotel Boring Log B$-6*$ given in the Lecture $1$ folder in Course Works. Using the strata boundaries shown on the log$.$ Assume the following moist unit weight of the: $$ FILL $($F$)=115$ pcf $$ SILT $($M$)=120$ pcf $$ SAND $($S$1)=125$ pcf $$ Varved SILTS and SANDS $($V$)=120$ pcf $$ TILL $($T$)=130$ pcf $$ Measure depth of overburden to the middle of the sampling spoon. For example, for Sample $9$D the depth of overburden would be $26$ ft$.$ below the ground surface. $$ Groundwater is located $30$ ft$.$ below the ground surface. Unit weight of water is $62\mathrm{.}4$ pcf$.1.$ The shear strength of soil is not influenced by its depth below groundwater. True or False $2.$ What is the uncorrected N$-$value for Sample $9$D$?3.$ What is the uncorrected N value for Sample $17$D$?4.$ Correcting for overburden only and assuming groundwater is at a depth of $30\mathrm{.}0$ ft$,$ what is the overburden correction coefficient of Samples $9$D$?5.$ Correcting for overburden only and assuming groundwater is at a depth of $30\mathrm{.}0$ ft$,$ what is the overburden correction coefficient for Samples $17$D$?6.$ If we assume the Sample $9$D was obtained using a donut hammer, what would be the Energy Correction Coefficient $?7.$ If Sample $17$D was taken with an automatic hammer, what would be the Energy Correction Coefficient$?8.$ What is the $($N$1)60$ value Sample $17$D$?9.$ Can the Percent Recovery ever be higher than the RQD$?10.$ Why do you think the RQD designation for Core Run No$.1$ was NA$?11.$ All rock core lengths taken during a subsurface exploration program are $5$ ft$.$ or less. True or False $12.$ When designing a rigid concrete subway structure in granular soils, the design soil lateral pressure would be based on At$-$Rest lateral pressures using the Rankine coefficient of Ko$.$ True or False $13.$ The stiffness of a Support of Excavation System$($SOE$)$ is solely based on the stiffness of the SOE wall EI$.$ True or False $14.$ The risk associated with the final construction cost of a project decreases with time. True or False $15.$ The final design of a multiple braced SOE involves checking each stage using $($a$)$ Apparent Pressure diagrams $($b$)$ Rankine Diagrams $($c$)$ Hydrostatic pressure diagrams $($d$)($a$)$ & $($c$)$ only $($e$)($b$)$ and $($c$)$ only $($f$)($a$)($b$)$ and $($c$)$