ACI CONCRETE FIELD TESTING TECHNICIAN GRADE I EXAM
20252026/ACTUAL COMPLETE ALL REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS) | ALREADY
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What are the requirements for the tamping rod used in the test
method? - ANSWER-Round, straight 5/8 [16 mm] +- 1/16 in. [2
mm] diameter rod at least 5 in. [300 mm] greater in length than
the depth of the bowl being used, with the tamping end
rounded to a hemispherical tip of the same diameter, made of
steel, high-density polyethylene, or other plastic of equal or
greater abrasion resistance.
What are the requirements for the strike-off bar used in this test
method? - ANSWER-Flat, straight steel bar at least 1/8 by 3/4 by
12 in. [3 by 20 by 300 mm] or a 4.4 flat, straight high-density
polyethylene bar, or other plastic of equal or greater abrasion
resistance, at least 1/4 by 3/4 by 23 in [6 by 30 by 300 mm].
What is the approximate volume of the measuring cup used to
add water to the air meter, in relation to teh volume of the air
meter bowl? - ANSWER-1.00% +- 0.04%
,What type of alcohol and concentration must be used in this
test method? - ANSWER-Isopropyl, 70% by volume (65% by
weight)
A mallet weighing ____ must be used to tap the sides of the
bowl after rodding each layer. - ANSWER-1.25 +- 0.50 lb. (600 +-
200 g)
The sample of concrete used in this test method must be
obtained in accordance with what ASTM Standard? - ANSWER-
C172
The maximum size aggregate allowed in this test method
is_____. – ANSWER-1 1/2 in. (37.5 mm)
If the concrete sample contains aggregate larger than that
allowed for this test, the sample must be _____. - ANSWER-Wet
sieved over a 1-in. (25-mm) sieve
When filling the bowl of the air meter, the concrete must be
placed in _____ layers of equal depth. - ANSWER-2
What is the specified number of strokes required when rodding
each layer of concrete? - ANSWER-25
, It is necessary to tap the sides of the bowl after each layer has
been rodded.
True or False? - ANSWER-True
The initial quantity of water and alcohol added to the air meter
can be poured
directly into the neck of the top section of the air meter. True or
False? - ANSWER-False; the funnel must be used
Upon final filling of the air meter with water, what part of the
liquid level should be adjusted to teh zero mark on the meter? -
ANSWER-Bottom of the meniscus
How long should the air meter be inverted and agitated? -
ANSWER-No more than five seconds at a time, but must be
repeated for a minimum of 45 seconds to free concrete from the
base
How many times does the rolling operation occur? - ANSWER-
A minimum of 2, a minimum of 3
Why is the isopropyl alcohol added to the meter? - ANSWER-To
dispel any foam that may be on the surface of the water
20252026/ACTUAL COMPLETE ALL REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS) | ALREADY
GRADED A+ | LATEST EXAM | JUST RELEASED !!!
What are the requirements for the tamping rod used in the test
method? - ANSWER-Round, straight 5/8 [16 mm] +- 1/16 in. [2
mm] diameter rod at least 5 in. [300 mm] greater in length than
the depth of the bowl being used, with the tamping end
rounded to a hemispherical tip of the same diameter, made of
steel, high-density polyethylene, or other plastic of equal or
greater abrasion resistance.
What are the requirements for the strike-off bar used in this test
method? - ANSWER-Flat, straight steel bar at least 1/8 by 3/4 by
12 in. [3 by 20 by 300 mm] or a 4.4 flat, straight high-density
polyethylene bar, or other plastic of equal or greater abrasion
resistance, at least 1/4 by 3/4 by 23 in [6 by 30 by 300 mm].
What is the approximate volume of the measuring cup used to
add water to the air meter, in relation to teh volume of the air
meter bowl? - ANSWER-1.00% +- 0.04%
,What type of alcohol and concentration must be used in this
test method? - ANSWER-Isopropyl, 70% by volume (65% by
weight)
A mallet weighing ____ must be used to tap the sides of the
bowl after rodding each layer. - ANSWER-1.25 +- 0.50 lb. (600 +-
200 g)
The sample of concrete used in this test method must be
obtained in accordance with what ASTM Standard? - ANSWER-
C172
The maximum size aggregate allowed in this test method
is_____. – ANSWER-1 1/2 in. (37.5 mm)
If the concrete sample contains aggregate larger than that
allowed for this test, the sample must be _____. - ANSWER-Wet
sieved over a 1-in. (25-mm) sieve
When filling the bowl of the air meter, the concrete must be
placed in _____ layers of equal depth. - ANSWER-2
What is the specified number of strokes required when rodding
each layer of concrete? - ANSWER-25
, It is necessary to tap the sides of the bowl after each layer has
been rodded.
True or False? - ANSWER-True
The initial quantity of water and alcohol added to the air meter
can be poured
directly into the neck of the top section of the air meter. True or
False? - ANSWER-False; the funnel must be used
Upon final filling of the air meter with water, what part of the
liquid level should be adjusted to teh zero mark on the meter? -
ANSWER-Bottom of the meniscus
How long should the air meter be inverted and agitated? -
ANSWER-No more than five seconds at a time, but must be
repeated for a minimum of 45 seconds to free concrete from the
base
How many times does the rolling operation occur? - ANSWER-
A minimum of 2, a minimum of 3
Why is the isopropyl alcohol added to the meter? - ANSWER-To
dispel any foam that may be on the surface of the water
