NICET SOILS LEVEL 1 QUESTIONS WITH COMPLETE SOLUTIONS
Define C117 - (ANSWER)The determination of the amount of material finer than a 75-um (No.200) sieve
What is the significance of C136? - (ANSWER)-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? - (ANSWER)Procedure A
What is an appropriate wetting agent to use for sieving through a No.200 sieve? - (ANSWER)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) - (ANSWER)110 °C (+-5)
If used, how much wetting agent should be used in procedure B? C117 - (ANSWER)Enough to produce a
small amount of suds when the sample was agitated
Report the amount retained by wash by....?(C117) - (ANSWER)<10%-report to the .1%
>10%-report to the nearest whole number
How long do you sieve material? C136 - (ANSWER)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 - (ANSWER)readable to the nearest .1 Gram or
.1%
How accurate shall balances be for course aggregate or mixtures? C136 - (ANSWER)readable to the
nearest .5 gram or nearest .1%
, NICET SOILS LEVEL 1 QUESTIONS WITH COMPLETE SOLUTIONS
What is the significance of C117? - (ANSWER)Accurate determination of material finer than 75-um in
mineral aggregate by washing
What practice is used for sampling aggregate? - (ANSWER)D75
The investigation of potential sample material should be performed by....? D75 - (ANSWER)A
responsible, trained and experienced person
What should a stockpile be visually inspected of? D75 - (ANSWER)Discernable Variations
Where shall a sample be obtained where practicable?D75 - (ANSWER)From the finished product
After a sample is obtained what shall not be done unless required for testing purposes? D75 -
(ANSWER)Further crushing or manual reduction
What shall be done if there are any discernable Variations in a stockpile? D75 - (ANSWER)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 -
(ANSWER)Separate samples shall be drawn from separate areas of the pile
What increases when sampling from the beginning or the final few tons of a conveyor belt? D75 -
(ANSWER)The potential of obtaining segregated material
When should method A be used in a standard proctor? D698 - (ANSWER)When 25% or less material is
retained on a No. 4 sieve
When should method B be used for standard proctor? D698 - (ANSWER)When 25% or less material is
retained on a 3/8" sieve
Define C117 - (ANSWER)The determination of the amount of material finer than a 75-um (No.200) sieve
What is the significance of C136? - (ANSWER)-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? - (ANSWER)Procedure A
What is an appropriate wetting agent to use for sieving through a No.200 sieve? - (ANSWER)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) - (ANSWER)110 °C (+-5)
If used, how much wetting agent should be used in procedure B? C117 - (ANSWER)Enough to produce a
small amount of suds when the sample was agitated
Report the amount retained by wash by....?(C117) - (ANSWER)<10%-report to the .1%
>10%-report to the nearest whole number
How long do you sieve material? C136 - (ANSWER)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 - (ANSWER)readable to the nearest .1 Gram or
.1%
How accurate shall balances be for course aggregate or mixtures? C136 - (ANSWER)readable to the
nearest .5 gram or nearest .1%
, NICET SOILS LEVEL 1 QUESTIONS WITH COMPLETE SOLUTIONS
What is the significance of C117? - (ANSWER)Accurate determination of material finer than 75-um in
mineral aggregate by washing
What practice is used for sampling aggregate? - (ANSWER)D75
The investigation of potential sample material should be performed by....? D75 - (ANSWER)A
responsible, trained and experienced person
What should a stockpile be visually inspected of? D75 - (ANSWER)Discernable Variations
Where shall a sample be obtained where practicable?D75 - (ANSWER)From the finished product
After a sample is obtained what shall not be done unless required for testing purposes? D75 -
(ANSWER)Further crushing or manual reduction
What shall be done if there are any discernable Variations in a stockpile? D75 - (ANSWER)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 -
(ANSWER)Separate samples shall be drawn from separate areas of the pile
What increases when sampling from the beginning or the final few tons of a conveyor belt? D75 -
(ANSWER)The potential of obtaining segregated material
When should method A be used in a standard proctor? D698 - (ANSWER)When 25% or less material is
retained on a No. 4 sieve
When should method B be used for standard proctor? D698 - (ANSWER)When 25% or less material is
retained on a 3/8" sieve
