NICET SOILS LEVEL 1 EXAM QUESTIONS AND ANSWERS

NICET SOILS LEVEL 1 EXAM
QUESTIONS AND ANSWERS
Define C117 - ANSWERS-- 7b 7b 7b


The determination of the amount of material finer than a 75-um (No.200) sieve
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




What is the significance of C136? - ANSWERS---
7b 7b 7b 7b 7b 7b 7b


To determine the grading of materials,
7b 7b 7b 7b 7b 7b


-compliance of particle size distribution, 7b 7b 7b 7b


-provide data for control of production of various aggregate
7b 7b 7b 7b 7b 7b 7b 7b


-developing relationships concerning porosity and packing
7b 7b 7b 7b 7b




What procedure should always be used unless otherwise specified in c117? -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--Procedure A
7b 7b




What is an appropriate wetting agent to use for sieving through a No.200 sieve? -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--
7b


Water or any dispersing agent that will promote separation of the fine materials
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




What should the temperature of the oven be when drying samples?(C117) -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--110 °C (+-5)
7b 7b 7b




If used, how much wetting agent should be used in procedure B? C117 -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--
7b


Enough to produce a small amount of suds when the sample was agitated
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




Report the amount retained by wash by....?(C117) - ANSWERS--<10%-
7b 7b 7b 7b 7b 7b 7b 7b


report to the .1% 7b 7b 7b


>10%-report to the nearest whole number 7b 7b 7b 7b 7b




How long do you sieve material? C136 - ANSWERS--
7b 7b 7b 7b 7b 7b 7b 7b


so that not more than 1% of material retained on any sieve will pass during 1 min
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ute of hand sieving
7b 7b 7b




How accurate shall balances be fo fine aggregate? C136 - ANSWERS--
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


readable to the nearest .1 Gram or .1%
7b 7b 7b 7b 7b 7b 7b




How accurate shall balances be for course aggregate or mixtures? C136 -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--readable to the nearest .5 gram or nearest .1%
7b 7b 7b 7b 7b 7b 7b 7b 7b




What is the significance of C117? - ANSWERS--
7b 7b 7b 7b 7b 7b 7b


Accurate determination of material finer than 75-
7b 7b 7b 7b 7b 7b


um in mineral aggregate by washing
7b 7b 7b 7b 7b




What practice is used for sampling aggregate? - ANSWERS--D75
7b 7b 7b 7b 7b 7b 7b 7b

, The investigation of potential sample material should be performed by....? D75 -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--A responsible, trained and experienced person
7b 7b 7b 7b 7b 7b




What should a stockpile be visually inspected of? D75 - ANSWERS--
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


Discernable Variations 7b




Where shall a sample be obtained where practicable?D75 - ANSWERS--
7b 7b 7b 7b 7b 7b 7b 7b 7b


From the finished product
7b 7b 7b




After a sample is obtained what shall not be done unless required for testing purp
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


oses? D75 - ANSWERS--Further crushing or manual reduction
7b 7b 7b 7b 7b 7b 7b




What shall be done if there are any discernable Variations in a stockpile? D75 -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--
7b


Corrective action shall be taken to establish homogeneity in the material
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




If it is necessary to indicate the degree of variation in a stockpile, what shall be do
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ne? D75 - ANSWERS--
7b 7b 7b


Separate samples shall be drawn from separate areas of the pile
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




What increases when sampling from the beginning or the final few tons of a conve
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


yor belt? D75 - ANSWERS--The potential of obtaining segregated material
7b 7b 7b 7b 7b 7b 7b 7b 7b




When should method A be used in a standard proctor? D698 - ANSWERS--
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


When 25% or less material is retained on a No. 4 sieve
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




When should method B be used for standard proctor? D698 - ANSWERS--
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


When 25% or less material is retained on a 3/8" sieve
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




When should method C be used for standard proctor? D698 - ANSWERS--
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


When 30% or less material is retained on a 3/4" sieve
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




When should a correction factor be established on a standard proctor? D698 -
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


ANSWERS--When the test specimen contains more than 5% of oversize fractions
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b




for purposes of comparing measured or calculated values, what shall the value be
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7


brounded to? D698 - ANSWERS--The nearest decimal or significant digit
7b 7b 7b 7b 7b 7b 7b 7b 7b




The procedures in D698 are considered...? - ANSWERS--industry standard
7b 7b 7b 7b 7b 7b 7b 7b




Define Standard Effort....D698 - ANSWERS--12,400 ft-Ibf/
7b 7b 7b 7b 7b


ft3 compactive effort applied by equipment in D698
7b 7b 7b 7b 7b 7b 7b




Define Standard Optimum Water Content....D698 - ANSWERS--
7b 7b 7b 7b 7b 7b


The molding water content at which soil can be compacted to the maximum dry u
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b


nit weight using standard compactive effort
7b 7b 7b 7b 7b




Define oversized fractions...D698 - ANSWERS--
7b 7b 7b 7b


The portion of a sample that does not pass through the required sieve in D698
7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b 7b