ACI Aggregate Testing Technician - Level 1 - Section 4 2024/2025 Exam Questions Marking Scheme New Update | A+ Rated

ACI Aggregate Testing Technician -
Level 1 - Section 4 2024/2025 Exam
Questions Marking Scheme New Update
| A+ Rated


AASHTO T 27 / ASTM C136

In this test method a set of sieves with progressively _____ openings

determines the ______ of the size of the particles sampled. - 🧠ANSWER

✔✔Smaller, distribution


AASHTO T 27 / ASTM C136

The purpose of the test is to determine the _____ of the materials used as

aggregates or proposed to be used as aggregates. - 🧠ANSWER

✔✔Grading


AASHTO T 27 / ASTM C136

Results of the test may also be useful in developing relationships related to

porosity and packing. - 🧠ANSWER ✔✔True


AASHTO T 27 / ASTM C136




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, For material finer than the 75-μm sieve, you must use Test Method T 98. -

🧠ANSWER ✔✔False; Method T 11


AASHTO T 27 / ASTM C136

Balances for testing fine aggregate must be readable to _____ . -

🧠ANSWER ✔✔0.1 g


AASHTO T 27 / ASTM C136

When a sample is 20 kg or more, a ____ shaker is recommended. -

🧠ANSWER ✔✔Mechanical sieve


AASHTO T 27 / ASTM C136

More than ____ min. is considered excessive time spent in the mechanical

sieve shaker and may result in _____ of the sample. - 🧠ANSWER ✔✔10,

degradation

AASHTO T 27 / ASTM C136

The size of the field sample should be that shown in Practice T 2, or ____

that required in the chart under 7.4 and 7.5 (except as modified in 7.6),

whichever is greater. - 🧠ANSWER ✔✔Four times


AASHTO T 27 / ASTM C136


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STATEMENT. ALL RIGHTS RESERVED