ACI Certification Concrete Field Testing
Technician Grade 1 Sample Written Test
Exam 2024
The Method of determining air content of concrete containing lightweight aggregate is
the pressure method. True or False? - CORRECT ANSWER-False
When making a test xcylinder xfrom xconcrete xbeing xused xin xconstruction, xthe xfield
xtechnician xmust xalso xmeasure xthe xslump xof xthe xconcrete. xTrue xor xFalse? x-
xCORRECT xANSWER-True
While xthe xtechnician xis xchecking xthe xslump xof xthe xconcrete, xthere xis xa xdecided
xfalling xaway xor xshearing xoff xof xconcrete xfrom xone xside xof xthe xsample. xWhat
xshould xthe xtechnician xdo? x- xCORRECT xANSWER-Disregard xthe xtest xand xretest
xon xanother xportion xof xthe xsample
Preparation xof xspecimens xfor xtransport xincludes x- xCORRECT xANSWER-
Determining xthat xat xleast x8 xhours xhas xelapsed xsince xthe xfinal xset
If xthe xaggregate xcorrection xfactor xfor xa xgiven xsource xof xfine xand xcoarse
xaggregate xis xfound xto xbe x.2% xin xa xpressure xair xmeter, xand xan xair xcontent xvalue
xof x5.0% xis xread xon xthe xgage xof xthe xsame xair xmeter xcontaining xconcrete xwith
xthe xsame xaggregate, xwhat xis xthe xcorrect xair xcontent xin x%. x- xCORRECT
xANSWER-4.8% x= x5.0 x- x0.2
Strength xtest xspecimens xtransported xfrom xthe xfield xto xthe xtesting xlaboratory
xmust xbe x- xCORRECT xANSWER-Protected xfrom xjarring, xmoisture xloss, xand
xfreezing.
Test xfor xslump xand xair xcontent xmust xbe xstarted xwithin x__ xafter xobtaining xthe
xfinal xportion xof xthe xcomposite xsample. x- xCORRECT xANSWER-5 xmins
The xminimum xsize xfor xsamples xto xbe xused xfor xstrength xtests xis x__. x-
xCORRECT xANSWER-1 xft^3 x= x28 xL
After xstrike xoff xof xthe xmeasure xused xto xdetermine xdensity, xa xsmall xquantity xof
xconcrete xmay xbe xadded xto xcorrect xa xdeficiency. xTrue xor xFalse? x- xCORRECT
xANSWER-False
For xnormal xstrength xconcretes, xwhat xtemperature xrange xmust xbe xmaintained
xfor xtest xcylinders xduring xinitial xcuring? x- xCORRECT xANSWER-60-80 xdeg xF
Technician Grade 1 Sample Written Test
Exam 2024
The Method of determining air content of concrete containing lightweight aggregate is
the pressure method. True or False? - CORRECT ANSWER-False
When making a test xcylinder xfrom xconcrete xbeing xused xin xconstruction, xthe xfield
xtechnician xmust xalso xmeasure xthe xslump xof xthe xconcrete. xTrue xor xFalse? x-
xCORRECT xANSWER-True
While xthe xtechnician xis xchecking xthe xslump xof xthe xconcrete, xthere xis xa xdecided
xfalling xaway xor xshearing xoff xof xconcrete xfrom xone xside xof xthe xsample. xWhat
xshould xthe xtechnician xdo? x- xCORRECT xANSWER-Disregard xthe xtest xand xretest
xon xanother xportion xof xthe xsample
Preparation xof xspecimens xfor xtransport xincludes x- xCORRECT xANSWER-
Determining xthat xat xleast x8 xhours xhas xelapsed xsince xthe xfinal xset
If xthe xaggregate xcorrection xfactor xfor xa xgiven xsource xof xfine xand xcoarse
xaggregate xis xfound xto xbe x.2% xin xa xpressure xair xmeter, xand xan xair xcontent xvalue
xof x5.0% xis xread xon xthe xgage xof xthe xsame xair xmeter xcontaining xconcrete xwith
xthe xsame xaggregate, xwhat xis xthe xcorrect xair xcontent xin x%. x- xCORRECT
xANSWER-4.8% x= x5.0 x- x0.2
Strength xtest xspecimens xtransported xfrom xthe xfield xto xthe xtesting xlaboratory
xmust xbe x- xCORRECT xANSWER-Protected xfrom xjarring, xmoisture xloss, xand
xfreezing.
Test xfor xslump xand xair xcontent xmust xbe xstarted xwithin x__ xafter xobtaining xthe
xfinal xportion xof xthe xcomposite xsample. x- xCORRECT xANSWER-5 xmins
The xminimum xsize xfor xsamples xto xbe xused xfor xstrength xtests xis x__. x-
xCORRECT xANSWER-1 xft^3 x= x28 xL
After xstrike xoff xof xthe xmeasure xused xto xdetermine xdensity, xa xsmall xquantity xof
xconcrete xmay xbe xadded xto xcorrect xa xdeficiency. xTrue xor xFalse? x- xCORRECT
xANSWER-False
For xnormal xstrength xconcretes, xwhat xtemperature xrange xmust xbe xmaintained
xfor xtest xcylinders xduring xinitial xcuring? x- xCORRECT xANSWER-60-80 xdeg xF
