ACI Certification Exam Questions with Complete Solutions

ACI Certification Exam Questions with
Complete Solutions23

Standard Practice for Making and Curing Concrete Test Specimens in the Field - ANSWERS-ASTM
C31/C31M



Standard Test Method for temperature of freshly mixed Hydraulic Cement concrete - ANSWERS-
ASTM C1064/C1064M



Standard Practice for Sampling Freshly Mixed Concrete - ANSWERS-ASTM C172/C172M



Standard Test Method for Slump of Hydraulic-Cement Concrete - ANSWERS-ASTM C143/C143M



Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of
Concrete - ANSWERS-ASTM C138/C138M



Standard Test Method for Air Content of Freshly mixed Concrete by the Pressure Method. -
ANSWERS-ASTM C231/C231M



Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method -
ANSWERS-ASTM C173/C173M



3in around - ANSWERS-The end of the temp. sensing portion of the temp. measuring device is
submerged a minimum of ____________ into the freshly mixed concrete.

ASTM C1064/C1064M

,+- 1F, 30-120 - ANSWERS-The temp. measuring device shall be capable of accurately measuring
the temp. of freshly mixed concrete to _____________ throughout a range of
_______________.

ASTM C1064/C1064M



Annually, Accuracy - ANSWERS-The temp. measuring device shall be verified ___________ or
whenever there is a question of ____________.

ASTM C1064/C1064M



True - ANSWERS-True or False ; the temp. of concrete may be measured in a wheelbarrow?

ASTM C1064/C1064M



True - ANSWERS-True or False ; The temp. of concrete may be measure in a wall form?

ASTM C1064/C1064M



False - ANSWERS-True or False; A composite sample of concrete is required even if the only
purpose for obtaining the sample is to determine temp.?

ASTM C1064/C1064M



Dampen with water - ANSWERS-What must be done to the sample container prior to sampling
the concrete?

ASTM C1064/C1064M



Gently press concrete around temp. measuring device @ surface of concrete - ANSWERS-What
must be done to the concrete surrounding the temp. measuring device after the device is
submerged in the fresh concrete?

ASTM C1064/C1064M

, 2-5min - ANSWERS-How long must the temperature measuring device remain in the freshly
mixed concrete?

ASTM C1064/C1064M



Report the temp. - ANSWERS-After the temperature of the concrete is read, what is required?

ASTM C1064/C1064M



1 F / 0.5 C - ANSWERS-The temp. of the concrete is reported to the nearest
_________________.

ASTM C1064/C1064M



Verify conformance to specified requirements for temp. of concrete. - ANSWERS-According to
Test Method C1064/C1064M, what is one reason to take the temperature of concrete?

ASTM C1064/C1064M



False; Based on Contract - ANSWERS-True or False; A maximum temp of freshly mixed concrete
is specified in Test Method C1064/C1064M



False; Do not rod for Temp. - ANSWERS-True or False; The sample of concrete used for temp.
determination must be rodded 25 times?

ASTM C1064/C1064M



compliance - ANSWERS-Sampling by this practice covers procedures for obtaining
representative samples, on which tests are to be performed to determine _________ with
quality requirements of the specifications under which the concrete is furnished.

ASTM C172/C172M