NICET Soils Level 1 Exam Questions and Answers All Correct
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NICET Soils Level 1
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NICET Soils Level 1
NICET Soils Level 1 Exam Questions and Answers All Correct
What are the requirements for the soil to make use of sand cones? D1556 - Answer- It must have sufficient cohesion to maintain stable sides and be firm enough to withstand minor pressures exerted in digging the hole without deforming
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NICET Soils Level 1 Exam
Questions and Answers All
Correct
What are the requirements for the soil to make use of sand cones? D1556 - Answer- It
must have sufficient cohesion to maintain stable sides and be firm enough to withstand
minor pressures exerted in digging the hole without deforming
Sand cone method is not suitable for what? D1556 - Answer- Organic, saturated, highly
plastic soils, granular material or soils containing appreciable amount of material larger
than 1.5"
Describe the base plate of a sand cone. D1556 - Answer- may be round or square,fall
on the bottom, have sufficient thickness to be rigid and will be a minimum of 3" larger
than the funnel
What should the results be rounded to in the sand cone method?D1556 - Answer-
nearest decimal or significant digits
What should happen if a test location has small amounts of oversize fractions during a
sand cone test? D1556 - Answer- The test should be stopped and moved to a different
location
What should be used to fill the hole in the sand cone method? D1556 - Answer- Free
flowing sand of a known density and volume.
When are larger apparatuses needed during a sand cone test? D1556 - Answer- When
particles are larger than 1.5"
What is the specification for sand used in the sand cone method? D1556 - Answer-
uniformly graded, free of fines and fine sand particles and bulk density variation should
not be greater than 1%
, What should be done to the sand before use in the sand cone? D1556 - Answer- it shall
be dried then allowed to reached an air dried state in the general location of testing
What is specified to be acceptable sand for sand cone? D1556 - Answer- Bulk-density
variation between any one determination shall not be greater than 1%
What types of soils can be used in Modified proctors? D1557 - Answer- soils that have
30% or less of their particles retained on the ¾" sieve and have not been previous
compacted
What types of soils can be used in Modified proctors? D698 - Answer- soils that have
30% or less of their particles retained on the ¾" sieve and have not been previous
compacted
When should a correction factor be used on standard/modified proctors? D698/D1557 -
Answer- When more than 5% of oversized fractions are retained on any method sieve
What type of rammer should be used for a modified proctor? D1557 - Answer- -Shall
free fall a length of 18" (+-.05")
-weight shall be 10lbf (+- .02lbf)
-with a round and planar face with a diameter of 2" (+-.05")
What sieve is used in method A of a standard/modified proctor? D698/1557 - Answer-
No.4
What sieve is used in method B of a standard/modified proctor? D698/1557 - Answer-
⅜"
What sieve is used in method C of a standard/modified proctor? D698/1557 - Answer-
¾"
What is modified effort? D1557 - Answer- 56,000 lbf/ft³
What is standard effort? D698 - Answer- 12,400 lbf/ft³
What is the minimum amount of mass for a field sample for method A and B in
Standard/Modified proctors? D698/D1556 - Answer- 16Kg dry
23Kg moist
What data is given through laboratory compacton tests? D698/D1556 - Answer- Percent
compaction and molding water needed to achieve the required the required engineering
properties
What is the minimum amount of mass for a field sample for method C in
Standard/Modified proctors? D698/D1556 - Answer- 45Kg moist
29Kg dry
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