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If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:
- a)45 mm
- b)53 mm
- c)90 mm
- d)81 mm
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
If aggregate size of 40-50 mm is to be tested for determining the prop...
Taking the average of size of aggregates between 40 to 50 mm.
Average size of aggregate 
m
mAn aggregate is said to be elongated if its greatest dimension is greater than 1.8 times the mean diameter.
Slot length to test elongation of aggregate = 1.8 x 45 = 81 mm.
Most Upvoted Answer
If aggregate size of 40-50 mm is to be tested for determining the prop...
Determining Slot Length for Proportion of Elongated Aggregates
Determining the slot length of the gauge is an important task in determining the proportion of elongated aggregates. The correct answer for the slot length of the gauge to use for aggregate size of 40-50 mm is option 'D', which is 81 mm.
Reasoning
The slot length of the gauge is determined based on the size of the aggregate being tested. The elongation index test is used to determine the proportion of elongated aggregates in a sample. The gauge used for this test has a rectangular opening of a specified size. The aggregate particles are passed through this opening, and the proportion of elongated particles is determined.
Steps to Determine the Slot Length of the Gauge
To determine the slot length of the gauge for aggregate size of 40-50 mm, follow the steps below:
Step 1: Check the Standard
Check the relevant standard to find the recommended slot length for the aggregate size being tested. In this case, the standard is BS EN 933-3:2012, which specifies the following slot lengths for various aggregate sizes:
- 4-10 mm: 24 mm
- 10-20 mm: 40 mm
- 20-40 mm: 63 mm
- 40-50 mm: 81 mm
- 50-63 mm: 100 mm
- 63-80 mm: 125 mm
- 80-100 mm: 160 mm
- 100-125 mm: 200 mm
- 125-160 mm: 250 mm
Step 2: Select the Correct Slot Length
Select the correct slot length for the aggregate size being tested. In this case, since the aggregate size is 40-50 mm, the recommended slot length is 81 mm. Therefore, the correct answer is option 'D'.
Conclusion
The correct slot length of the gauge to use for determining the proportion of elongated aggregates in aggregate size of 40-50 mm is 81 mm. It is important to follow the recommended slot lengths for each aggregate size to ensure accurate results.
Determining the slot length of the gauge is an important task in determining the proportion of elongated aggregates. The correct answer for the slot length of the gauge to use for aggregate size of 40-50 mm is option 'D', which is 81 mm.
Reasoning
The slot length of the gauge is determined based on the size of the aggregate being tested. The elongation index test is used to determine the proportion of elongated aggregates in a sample. The gauge used for this test has a rectangular opening of a specified size. The aggregate particles are passed through this opening, and the proportion of elongated particles is determined.
Steps to Determine the Slot Length of the Gauge
To determine the slot length of the gauge for aggregate size of 40-50 mm, follow the steps below:
Step 1: Check the Standard
Check the relevant standard to find the recommended slot length for the aggregate size being tested. In this case, the standard is BS EN 933-3:2012, which specifies the following slot lengths for various aggregate sizes:
- 4-10 mm: 24 mm
- 10-20 mm: 40 mm
- 20-40 mm: 63 mm
- 40-50 mm: 81 mm
- 50-63 mm: 100 mm
- 63-80 mm: 125 mm
- 80-100 mm: 160 mm
- 100-125 mm: 200 mm
- 125-160 mm: 250 mm
Step 2: Select the Correct Slot Length
Select the correct slot length for the aggregate size being tested. In this case, since the aggregate size is 40-50 mm, the recommended slot length is 81 mm. Therefore, the correct answer is option 'D'.
Conclusion
The correct slot length of the gauge to use for determining the proportion of elongated aggregates in aggregate size of 40-50 mm is 81 mm. It is important to follow the recommended slot lengths for each aggregate size to ensure accurate results.
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If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:a)45 mmb)53 mmc)90 mmd)81 mmCorrect answer is option 'D'. Can you explain this answer?
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If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:a)45 mmb)53 mmc)90 mmd)81 mmCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:a)45 mmb)53 mmc)90 mmd)81 mmCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:a)45 mmb)53 mmc)90 mmd)81 mmCorrect answer is option 'D'. Can you explain this answer?.
If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:a)45 mmb)53 mmc)90 mmd)81 mmCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:a)45 mmb)53 mmc)90 mmd)81 mmCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:a)45 mmb)53 mmc)90 mmd)81 mmCorrect answer is option 'D'. Can you explain this answer?.
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