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ACI Aggregate Testing Technician - Level 1 - Section 8 Exam Questions And Answers 2025 Update.

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©THESTAR 2024/2025 ALL RIGHTS RESERVED 12:54PM. 1 ACI Aggregate Testing Technician - Level 1 - Section 8 Exam Questions And Answers 2025 Update. AASHTO T 21 / ASTM C40 This test method involves the use of hazardous materials. - AnswerTrue AASHTO T 21 / ASTM C40 The user of these standards is responsible for any safety problems associated with them. - AnswerTrue AASHTO T 21 / ASTM C40 The principal value of this test is to furnish a warning that injurious amounts of ____ may be present. - AnswerOrganic impurities AASHTO T 21 / ASTM C40 A dark color in the test sample is a warning sign. - AnswerTrue AASHTO T 21 / ASTM C40 When a sample subjected to this test produces a color lighter than the standard color solution, it is advisable to perform the test for the effect of organic impurities on the strength of the mortar. - AnswerFalse; when it produces a darker color AASHTO T 21 / ASTM C40 When organic impurities are evident in the fine aggregate tested, it is advisable to perform Test Method _____ . - AnswerT 71 AASHTO T 21 / ASTM C40 For this test, bottles of at least 3 inch outside thickness should be used. - AnswerFalse; thickness no more than 2.5 in.

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©THESTAR 2024/2025 ALL RIGHTS RESERVED 12:54PM.




ACI Aggregate Testing Technician - Level 1 -
Section 8 Exam Questions And Answers 2025
Update.



AASHTO T 21 / ASTM C40

This test method involves the use of hazardous materials. - Answer✔True
AASHTO T 21 / ASTM C40
The user of these standards is responsible for any safety problems associated with them. -
Answer✔True
AASHTO T 21 / ASTM C40
The principal value of this test is to furnish a warning that injurious amounts of ____ may be
present. - Answer✔Organic impurities
AASHTO T 21 / ASTM C40

A dark color in the test sample is a warning sign. - Answer✔True
AASHTO T 21 / ASTM C40
When a sample subjected to this test produces a color lighter than the standard color solution,
it is
advisable to perform the test for the effect of organic impurities on the strength of the mortar.
- Answer✔False; when it produces a darker color
AASHTO T 21 / ASTM C40
When organic impurities are evident in the fine aggregate tested, it is advisable to perform Test
Method _____ . - Answer✔T 71
AASHTO T 21 / ASTM C40

For this test, bottles of at least 3 inch outside thickness should be used. - Answer✔False;
thickness no more than 2.5 in.


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