NICET Soils Level 1 Questions with Correct Answers
Define C117 - -The determination of the amount of material finer than a 75-um
(No.200) sieve
What is the significance of C136? - --To determine the grading of materials,
-compliance of particle size distribution,
-provide data for control of production of various aggregate
-developing relationships concerning porosity and packing
What procedure should always be used unless otherwise specified in c117? - -
Procedure A
What is an appropriate wetting agent to use for sieving through a No.200 sieve? - -
Water or any dispersing agent that will promote separation of the fine materials
What should the temperature of the oven be when drying samples?(C117) - -110 °C
(+-5)
If used, how much wetting agent should be used in procedure B? C117 - -Enough to
produce a small amount of suds when the sample was agitated
Report the amount retained by wash by....?(C117) - -<10%-report to the .1%
>10%-report to the nearest whole number
How long do you sieve material? C136 - -so that not more than 1% of material
retained on any sieve will pass during 1 minute of hand sieving
, How accurate shall balances be fo fine aggregate? C136 - -readable to the nearest .1
Gram or .1%
How accurate shall balances be for course aggregate or mixtures? C136 - -readable
to the nearest .5 gram or nearest .1%
What is the significance of C117? - -Accurate determination of material finer than
75-um in mineral aggregate by washing
What should a stockpile be visually inspected of? D75 - -Discernable Variations
What practice is used for sampling aggregate? - -D75
The investigation of potential sample material should be performed by....? D75 - -A
responsible, trained and experienced person
Where shall a sample be obtained where practicable?D75 - -From the finished
product
After a sample is obtained what shall not be done unless required for testing purposes?
D75 - -Further crushing or manual reduction
What shall be done if there are any discernable Variations in a stockpile? D75 - -
Corrective action shall be taken to establish homogeneity in the material
If it is necessary to indicate the degree of variation in a stockpile, what shall be done? D75 -
-Separate samples shall be drawn from separate areas of the pile
Define C117 - -The determination of the amount of material finer than a 75-um
(No.200) sieve
What is the significance of C136? - --To determine the grading of materials,
-compliance of particle size distribution,
-provide data for control of production of various aggregate
-developing relationships concerning porosity and packing
What procedure should always be used unless otherwise specified in c117? - -
Procedure A
What is an appropriate wetting agent to use for sieving through a No.200 sieve? - -
Water or any dispersing agent that will promote separation of the fine materials
What should the temperature of the oven be when drying samples?(C117) - -110 °C
(+-5)
If used, how much wetting agent should be used in procedure B? C117 - -Enough to
produce a small amount of suds when the sample was agitated
Report the amount retained by wash by....?(C117) - -<10%-report to the .1%
>10%-report to the nearest whole number
How long do you sieve material? C136 - -so that not more than 1% of material
retained on any sieve will pass during 1 minute of hand sieving
, How accurate shall balances be fo fine aggregate? C136 - -readable to the nearest .1
Gram or .1%
How accurate shall balances be for course aggregate or mixtures? C136 - -readable
to the nearest .5 gram or nearest .1%
What is the significance of C117? - -Accurate determination of material finer than
75-um in mineral aggregate by washing
What should a stockpile be visually inspected of? D75 - -Discernable Variations
What practice is used for sampling aggregate? - -D75
The investigation of potential sample material should be performed by....? D75 - -A
responsible, trained and experienced person
Where shall a sample be obtained where practicable?D75 - -From the finished
product
After a sample is obtained what shall not be done unless required for testing purposes?
D75 - -Further crushing or manual reduction
What shall be done if there are any discernable Variations in a stockpile? D75 - -
Corrective action shall be taken to establish homogeneity in the material
If it is necessary to indicate the degree of variation in a stockpile, what shall be done? D75 -
-Separate samples shall be drawn from separate areas of the pile
