CONCRETE BATCH PLANT OPERATOR
EXAM (FDOT) WITH VERIFIED
SOLUTIONS
Stockpiles hof haggregate hshall hbe hmaintained hin ha hwell-drained hcondition hin horder
hto: h- hcorrect hanswers h-Minimize hFree hWater hContent
Coarse haggregate hstockpiles hmust hbe hsprinkled hfor hat hlest hhow hmany hhours
hprior hto hbatch hfor hFDOT? h- hcorrect hanswers h-24
Free hmoisture hof hthe haggregate hmeans: h- hcorrect hanswers h-Moister hon hthe
hsurface hof han haggregate hthat his habove hand hbeyond hthe habsorbed hmoister hin
hthe haggregate.
If hthe hmoister htest his hdone hother hthan hby hthe hcook-out hmethod, hhow hoften hshall
hthe hother hmethods hbe hverified? h- hcorrect hanswers h-Each hweek
, For hdrill hshaft hconcrete, hthe hquantity hof hcement hreplaced hwith hfly hash hshall hbe:
h- hcorrect hanswers h-33 hthru h37%
In hconcrete, hwhich hmaterial hhas ha hspecific hgravity hof hone? h- hcorrect hanswers h-
Water
What his hthe hair hcontent hrange hfor hall hclasses hof hstructural hconcrete hexcept
hClass hIV hShaft? h- hcorrect hanswers h-1.00 hthru h6.00%
When hcan hunmetered hwater hbe hadded hto hthe hconcrete? h- hcorrect hanswers h-Not
hat hall.
Do hnot hallow hthe htotal hnumber hof hrevolution hat hmixing hspeed hto hexceed: h-
hcorrect hanswers h-160 hRevolutions
After hall hmaterials hhave hbeen hcharged hinto hthe htransit hmixer hdrum, hthe hconcrete
hmust hbe hmixed hat hhow hmany hrevolutions hat hthe hplant hbefore hleaving hfor hthe
hproject? h- hcorrect hanswers h-70 hto h100
When hthe hwater hmeters h/ hscales hare hcalibrated, hprior hto hproduction, hat hwhat
hfrequency hshould hthey hbe hchecked hthere hafter? h- hcorrect hanswers h-3 hmoths
To hwhat haccuracy hshould hthe hscales hfor hweighing hcement h, hpozzolan, hslag hand
haggregates hat hthe hplant hbe hmaintained h- hcorrect hanswers h-0.5% hof hmaximum
hload hnormally hhandled
For hconcrete hcontaining ha hwater-reducing hretarding hadmixture, hin han hagitator
htruck, hthe hmaximum htime hfor hdepositing hthe hconcrete hshall hnot hexceed: h-
hcorrect hanswers h-90 hminutes
If ha hload hof hconcrete hhas hbeen hrejected hdue hto hexcessive hslump, hthe hconcrete
hmay hremain hin hthe htransporting hvehicle hto hreduce hthe hslump. h- hcorrect hanswers
h-Is hnot hallowed.
Who hplaces hthe horders hfor hconcrete hwith hthe hproducer? h- hcorrect hanswers h-The
hcontractor
The hminimum hnormal hsampling hfrequency hfor hthe hchloride hcontent hof hstructural
hconcrete his: h- hcorrect hanswers h-1 hper hdesign hmix hin huse hfrom hthe hfirst hday hof
hproduction hand hevery h30 hcalendar hdays hor hless hthereafter.
In hwhat hmoister hcondition hare hthe haggregates hon hthe happroved hconcrete hmix
hdesigns? h- hcorrect hanswers h-SSD hcondition
The hspecific hgravity hof han haggregate his hthe hratio hof hits hunit hweight hto hthe
hweight hof han hequal habsolute hvolume hof: h- hcorrect hanswers h-Water
EXAM (FDOT) WITH VERIFIED
SOLUTIONS
Stockpiles hof haggregate hshall hbe hmaintained hin ha hwell-drained hcondition hin horder
hto: h- hcorrect hanswers h-Minimize hFree hWater hContent
Coarse haggregate hstockpiles hmust hbe hsprinkled hfor hat hlest hhow hmany hhours
hprior hto hbatch hfor hFDOT? h- hcorrect hanswers h-24
Free hmoisture hof hthe haggregate hmeans: h- hcorrect hanswers h-Moister hon hthe
hsurface hof han haggregate hthat his habove hand hbeyond hthe habsorbed hmoister hin
hthe haggregate.
If hthe hmoister htest his hdone hother hthan hby hthe hcook-out hmethod, hhow hoften hshall
hthe hother hmethods hbe hverified? h- hcorrect hanswers h-Each hweek
, For hdrill hshaft hconcrete, hthe hquantity hof hcement hreplaced hwith hfly hash hshall hbe:
h- hcorrect hanswers h-33 hthru h37%
In hconcrete, hwhich hmaterial hhas ha hspecific hgravity hof hone? h- hcorrect hanswers h-
Water
What his hthe hair hcontent hrange hfor hall hclasses hof hstructural hconcrete hexcept
hClass hIV hShaft? h- hcorrect hanswers h-1.00 hthru h6.00%
When hcan hunmetered hwater hbe hadded hto hthe hconcrete? h- hcorrect hanswers h-Not
hat hall.
Do hnot hallow hthe htotal hnumber hof hrevolution hat hmixing hspeed hto hexceed: h-
hcorrect hanswers h-160 hRevolutions
After hall hmaterials hhave hbeen hcharged hinto hthe htransit hmixer hdrum, hthe hconcrete
hmust hbe hmixed hat hhow hmany hrevolutions hat hthe hplant hbefore hleaving hfor hthe
hproject? h- hcorrect hanswers h-70 hto h100
When hthe hwater hmeters h/ hscales hare hcalibrated, hprior hto hproduction, hat hwhat
hfrequency hshould hthey hbe hchecked hthere hafter? h- hcorrect hanswers h-3 hmoths
To hwhat haccuracy hshould hthe hscales hfor hweighing hcement h, hpozzolan, hslag hand
haggregates hat hthe hplant hbe hmaintained h- hcorrect hanswers h-0.5% hof hmaximum
hload hnormally hhandled
For hconcrete hcontaining ha hwater-reducing hretarding hadmixture, hin han hagitator
htruck, hthe hmaximum htime hfor hdepositing hthe hconcrete hshall hnot hexceed: h-
hcorrect hanswers h-90 hminutes
If ha hload hof hconcrete hhas hbeen hrejected hdue hto hexcessive hslump, hthe hconcrete
hmay hremain hin hthe htransporting hvehicle hto hreduce hthe hslump. h- hcorrect hanswers
h-Is hnot hallowed.
Who hplaces hthe horders hfor hconcrete hwith hthe hproducer? h- hcorrect hanswers h-The
hcontractor
The hminimum hnormal hsampling hfrequency hfor hthe hchloride hcontent hof hstructural
hconcrete his: h- hcorrect hanswers h-1 hper hdesign hmix hin huse hfrom hthe hfirst hday hof
hproduction hand hevery h30 hcalendar hdays hor hless hthereafter.
In hwhat hmoister hcondition hare hthe haggregates hon hthe happroved hconcrete hmix
hdesigns? h- hcorrect hanswers h-SSD hcondition
The hspecific hgravity hof han haggregate his hthe hratio hof hits hunit hweight hto hthe
hweight hof han hequal habsolute hvolume hof: h- hcorrect hanswers h-Water
