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What is the purpose of using the cumulative method when weighing the material retained on each sieve?
What is the purpose of using the cumulative method when weighing the material retained on each sieve?
- To save time by weighing all the sieves together.
- To prevent the need for recording individual sieve weights.
- To avoid using a balance for each individual sieve.
- To determine the total mass of fine aggregates retained on all sieves. (correct)
What precaution should be taken when recording the mass of fine aggregates retained on the sieve?
What precaution should be taken when recording the mass of fine aggregates retained on the sieve?
- Use the cumulative percentage to determine the mass.
- Deduct the dry weight of used materials before recording the mass. (correct)
- Add the dry weight of used materials after recording the mass.
- Combine the mass of fine aggregates with the dry weight of used materials.
How is the fineness modulus of fine aggregate calculated?
How is the fineness modulus of fine aggregate calculated?
- By multiplying the total cumulative percentage for retain aggregate.
- By adding the total cumulative percentage for retain aggregate.
- By subtracting the total cumulative percentage for retain aggregate.
- By dividing the total cumulative percentage for retain aggregate. (correct)
What is the significance of determining whether a tested fine aggregate is poorly graded through grading curve analysis?
What is the significance of determining whether a tested fine aggregate is poorly graded through grading curve analysis?
Why is it important to refer to a standard when assessing the suitability of fine aggregate for concrete material?
Why is it important to refer to a standard when assessing the suitability of fine aggregate for concrete material?
In table 2, what does a cumulative percentage of 78% for a specific sieve indicate?
In table 2, what does a cumulative percentage of 78% for a specific sieve indicate?
What does the sieve analysis determine?
What does the sieve analysis determine?
Why is it recommended to use the sieve analysis in conjunction with AASHTO T 11?
Why is it recommended to use the sieve analysis in conjunction with AASHTO T 11?
What is NOT determined through a sieve analysis?
What is NOT determined through a sieve analysis?
How is the size of screen openings arranged in a set of nested sieves?
How is the size of screen openings arranged in a set of nested sieves?
What is one of the uses of gradation data obtained from a sieve analysis?
What is one of the uses of gradation data obtained from a sieve analysis?
Why is accurate determination of material passing the No. 200 (75 µm) sieve not possible with the sieve test alone?
Why is accurate determination of material passing the No. 200 (75 µm) sieve not possible with the sieve test alone?
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