Chapter 4 - C138/C138M - section 16 A - Density (Unit Weight), Yield, Air Content (Gravimetric) of concrete Exam Questions and Answers with Verified Solutions | Latest Updated 2026

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Chapter 4 - C138/C138M - section 16 A - Density (Unit Weight), Yield, Air Content (Gravimetric) of concrete Exam Questions and Answers with Verified Solutions | Latest Updated 2026

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Institution ASTM C1064/C1064M

Course ASTM C1064/C1064M

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Chapter 4 - C138/C138M - section 16 A - Density (Unit Weight), Yield, Air Content (Gravimetric) of concrete Exam Questions and Answers with Verified Solutions | Latest Updated 2026

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Chapter 4 - C138/C138M - section 16 A -
Density (Unit Weight), Yield, Air Content
(Gravimetric) of concrete Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026

The diameter of the tamping 5/8 Inch (16mm) + 1/6 inch (2mm)
rod used in the test method is
_____

What is the required shape of Rounded to a hemispherical tip
the tamping end of the rod?

What is the required minimum 9000 Vibrations per minutes (150
frequency of the vibrator used HZ)
in this test method?

The outside diameter or side 0.75 inch (19mm), 1.50 Inch (38mm)
dimension of the vibrating
element must be at least _____
but not greater than _____.

A plastic container can be False
used for the measure in this
method. True or False?

What is the minimum 1/4 Inch (6mm)
thickness of a metal strike off
plate?

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Uploaded on: June 25, 2026
Number of pages: 4
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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