ACI CONCRETE FIELD TEST TECHNICIAN
EXAM QUESTIONS WITH COMPLETE
SOLUTIONS GRADED A+
QUESTIONS AND ANSWERS
This practice covers sampling from four types of equipment, what are they?.
ANSWER -Continuous Mixer, Stationary, Revolving Truck, Paving Mixer
The elapsed time between obtaining the first and final portions of a composite shall
not exceed. ANSWER -15 minutes
Start tests for slump, temperature, and air content within ..... minutes after obtaining
the final portion of the composite sample.. ANSWER -5 Minutes
The concrete sample must be protected from contamination and. ANSWER -Water
loss (evaporation)
The minimum size sample for making strength test specimens is. ANSWER -1 cubic
foot
When sampling from a stationary mixer, the batch must be sampled at ...... or more
regularly spaced intervals during discharge of the middle portion of the batch..
ANSWER -2
When sampling from a paving mixer, obtain samples from at least ....... different
portions of the pile and combine them into one composite sample from test purposes..
ANSWER -5
, When sampling from a revolving truck mixer, sample the concrete by collecting ......
or more portions take at regularly spacer intervals during discharge of the middle
portion of the batch.. ANSWER -2
When the concrete contains aggregate larger than that permitted for a particular test
method, the sample of concrete must be ............... before making the test.. ANSWER -
wet screened
The mold for making the slump test is in the shape of. ANSWER -Frustrum (a cone)
The height of the slump mold is?. ANSWER -12"
The interior surface of the slump mold is allowed to have minor irregularities?.
ANSWER -False
For use in the slump test, the tampering end of both ends of the tamping rod must
be?. ANSWER -Hemispherical tip
The slump mold should be in a dry condition before beginning the test?. ANSWER -
False
The surface on which the slump mold will be placed must be. ANSWER -
nonabsorbent and flat
The slump mold is filled in ..... layers. ANSWER -3
Each layer should fill approximately ......... the volume of the mold.. ANSWER -1/3
EXAM QUESTIONS WITH COMPLETE
SOLUTIONS GRADED A+
QUESTIONS AND ANSWERS
This practice covers sampling from four types of equipment, what are they?.
ANSWER -Continuous Mixer, Stationary, Revolving Truck, Paving Mixer
The elapsed time between obtaining the first and final portions of a composite shall
not exceed. ANSWER -15 minutes
Start tests for slump, temperature, and air content within ..... minutes after obtaining
the final portion of the composite sample.. ANSWER -5 Minutes
The concrete sample must be protected from contamination and. ANSWER -Water
loss (evaporation)
The minimum size sample for making strength test specimens is. ANSWER -1 cubic
foot
When sampling from a stationary mixer, the batch must be sampled at ...... or more
regularly spaced intervals during discharge of the middle portion of the batch..
ANSWER -2
When sampling from a paving mixer, obtain samples from at least ....... different
portions of the pile and combine them into one composite sample from test purposes..
ANSWER -5
, When sampling from a revolving truck mixer, sample the concrete by collecting ......
or more portions take at regularly spacer intervals during discharge of the middle
portion of the batch.. ANSWER -2
When the concrete contains aggregate larger than that permitted for a particular test
method, the sample of concrete must be ............... before making the test.. ANSWER -
wet screened
The mold for making the slump test is in the shape of. ANSWER -Frustrum (a cone)
The height of the slump mold is?. ANSWER -12"
The interior surface of the slump mold is allowed to have minor irregularities?.
ANSWER -False
For use in the slump test, the tampering end of both ends of the tamping rod must
be?. ANSWER -Hemispherical tip
The slump mold should be in a dry condition before beginning the test?. ANSWER -
False
The surface on which the slump mold will be placed must be. ANSWER -
nonabsorbent and flat
The slump mold is filled in ..... layers. ANSWER -3
Each layer should fill approximately ......... the volume of the mold.. ANSWER -1/3
