ACI- CONCRETE FIELD-TESTING TECHNICIAN - GRADE 1
FINAL EXAM AND PRACTICE 2025/2026 NEWEST ACTUAL
EXAM WITH COMPLETE QUESTIONS AND VERIFIED
ANSWERS |ALREADY GRADED A+|
Q64. What must be done if the concrete drops below the top of
the slump mold while the top layer is being rodded? -ANSWERS-
add additional concrete to keep an excess of
concrete above the top of the mold at all times.
ASTM C143- (Para 7.3)
If the rodding operation results in subsidence of the concrete
below the top edge of the mold, add additional concrete to keep
an excess of concrete above the top of the mold at all times.
Q65. Prior to lifting the mold, concrete must be removed
from__________. -ANSWERS-remove concrete from the area
surrounding the base of the mold.
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ASTM C143- (Para 7.3)
Remove concrete from the area surrounding the base of the mold
to preclude interference with the movement of slumping concrete.
Q66. After the final rodding, the sides of the slump mold should
be tapped lightly with the tamping rod.
A. True
B. False -ANSWERS-B. False
ASTM C143- (Para 7.3)
After the top layer has been rodded, strike off the surface of the
concrete by means of a screeding and rolling motion of the
tamping rod.
Q67.When raising the slump mold, it should not be rotated or
twisted.
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A. True
B. False -ANSWERS-A. True
ASTM C143- (Para 7.3)
Raise the mold a distance of 12 in. [300 mm] in 5 _+ 2 s by a
steady upward lift with no lateral or torsional motion.
Q68.How much time is allowed for lifting the slump mold? -
ANSWERS-in 5 _+ 2 s
ASTM C143- (Para 7.3)
Raise the mold a distance of 12 in. [300 mm] in 5 _+ 2 s by a
steady upward lift with no lateral or torsional motion.
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Q69. The measurement for slump is made from the top of the
mold to what point of the concrete specimen? -ANSWERS-
displaced original center of the top surface of the specimen.
ASTM C143- (Para 7.4)
Immediately measure the slump by determining the
vertical difference between the top of the mold and the
displaced original center of the top surface of the specimen.
Q70. The dimensions of the slump cone are:
A. Top diameter 6 inches, bottom diameter 12 inches, height 12
inches
B. Top diameter 4 inches, bottom diameter 8 inches, height 16
inches
C. Top diameter 4 inches, bottom diameter 8 inches, height 12
inches
D. None of the above -ANSWERS-C. Top diameter 4 inches,
bottom diameter 8 inches, height 12 inches.