Lab Final Exam Questions And Correct Answers

LAB FINAL EXAM QUESTIONS AND
CORRECT ANSWERS

What cis cthe cpurpose cof cthe cStandard cProctor ctest c(AASHTO cT c99) cand cModified
cProctor ctest c(AASHTO cT c180)?
a. cDetermine cthe cstrength cof ca csoil cspecimen
b. cDetermine cwhether csoil cstabilization cis crequired
c. cDetermine cthe cshrink cswell cpotential cof ca cspecimen
d. cDetermine cthe crelationship cbetween cmoisture ccontent cand cdensity cof ca csoil
cspecimen
e. cAll cof cthe cabove c- cCORRECT cANS✔✔d. cDetermine cthe crelationship cbetween
cmoisture ccontent cand cdensity cof ca csoil cspecimen


The cpeak cof cthe cparabolic ccurve ccreated cwith ctest cmethod cAASHTO cT c99
c(Standard cProctor ctest), crepresents cthe c______.
a. cWet cdensity
b. cSaturated cdensity
c. cMaximum cdry cdensity
d. cMinimum cdry cdensity c- cCORRECT cANS✔✔c. cMaximum cdry cdensity

In cAASHTO cT c99 c(Standard cProctor ctest), cthe csample cthat cis cto cbe cplaced cin cthe
cmoisture ctin cshall cbe ctaken cfrom cthe cmiddle cof cthe ccompacted csoil csample cand
cweigh ca cminimum cof c100 cgrams. c
a. cThis cis ca cmade-up cquestion
b. cTrue c
c. cFalse c- cCORRECT cANS✔✔b. cTrue

Which cof cthe cfollowing cvariables cdiffer cbetween cMethod cA cin cAASHTO cT c99 cand
cMethod cA cin cAASHTO cT c180?
a. cMold csize
b. cBlow ccount
c. cHammer cweight
d. cAll cof cthe cabove
e. cNone cof cthe cabove c- cCORRECT cANS✔✔c. cHammer cweight

The cCalifornia cBearing cRatio c(AASHTO cT c193) ctest cmethod cwas cdeveloped cto
cevaluate cairfield cpavements. c
a. cThis cis ca cmade-up cquestion
b. cTrue
c. cFalse c- cCORRECT cANS✔✔b. cTrue

, The cCalifornia cBearing cRatio c(AASHTO cT c193) ctest cmethod cis cprimarily cused cto
cevaluate cthe c________. c
a. cPermeability cof cmaterials cbeing cconsidered cfor cuse cas cpavement csubgrade,
csubbase, cand cbase/course cmaterials
b. cStrength cof ccohesive cmaterials cused cas cpavement csubgrade, csubbase, cand
cbase/course cmaterials
c. cCohesion cof cmaterials cbeing cconsidered cfor cuse cas cpavement csubgrade,
csubbase, cand cbase/course cmaterials c- cCORRECT cANS✔✔b. cStrength cof ccohesive
cmaterials cused cas cpavement csubgrade, csubbase, cand cbase/course cmaterials


AASHTO cT c193 cis cprimarily cintended cto cevaluate cthe cstrength cof ccohesive
cmaterials cthat chave cmaximum cparticle csizes cless cthan c_________. c
a. c9.5 cmm c(3/8")
b. c12.5 c(1/2")
c. c19.0 cmm c(3/4")
d. c37.5 cmm c(3/2") c- cCORRECT cANS✔✔c. c19.0 cmm c(3/4")

AASHTO cPP c92 c(Preparation cof cTest cSpecimens cUsing cthe cPlastic cMold
cCompaction cDevice) cwas cdeveloped cthrough ca cresearch cpartnership cbetween
cMSU, cMDOT, cand cCMRC. c
a. cThis cis ca cmade-up cquestion
b. cTrue
c. cFalse c- cCORRECT cANS✔✔b. cTrue

Practical cuses cfor cAASHTO cPP c92 c(Preparation cof cTest cSpecimens cUsing cthe
cPlastic cMold cCompaction cDevice) cinclude cutilizing cthe cPM cdevice cto cproduce
claboratory ctest cspecimens cfor cdesign cpurposes cand c_____________ cas ca cpart cof
cthe cquality ccontrol cprogram. c
a. cUtilizing claboratory cpractices
b. cUtilizing cthe csame cconstruction cconsolidation cmethods
c. cUtilizing cthe csame cmethod cof cspecimen ccompaction cduring cconstruction
coperations
d. cNone cof cthe cabove c- cCORRECT cANS✔✔c. cUtilizing cthe csame cmethod cof
cspecimen ccompaction cduring cconstruction coperations


AASHTO cPP c92 c(Preparation cof cTest cSpecimens cUsing cthe cPlastic cMold
cCompaction cDevice) crequires cthe cuse cof c__________ cplate cin caddition cto cthe
ccylindrical cplastic cmold. c
a. ca csteel
b. can caluminum
c. ca cconcrete
d. can casphalt c- cCORRECT cANS✔✔an caluminum

ASTM cC c127 cis cthe cstandard ctest cmethod cfor crelative cdensity c(specific cgravity)
cand c_________ cof ccoarse caggregate. c
a. cAdsorption