AND VERIFIED ANSWERS
◉ Coarse aggregate shall be shipped in the following: a) Rubbermaid
container
b) secure container, or sample bag c) ziplock bags d) Ziploc bags,
and a secure container. Answer: b) secure container, or sample bag
◉ When sampling stockpiles where power equipment is not
available, samples should be made up of at least ____________
portions? A) 3 b) 4 c) 5 d) 6. Answer: A) 3
◉ A board pushed vertically into a pile just above the sampling point
aids in preventing further segregation. A) True B) false. Answer: A)
True
◉ When sampling from transportation units, a minimum of three
trenches should be dug into the aggregate measuring at least 0.3 m
wide by at least 0.3 m below the surface. A minimum
of_________portions from approximately equals space points along
each trench should be taken by pushing the shovel downward into
the material. A) 1 b) 2 c) 3 d) 4. Answer: C) 3
, ◉ Each sample or every container shall be accompanied by a sample
tag, preferably in the container, having the following information
choose all of which apply: a) name of the person who sampled it b)
name of the person who submitted it c) source of supply d) date it
was taken e) company name. Answer: a) name of the person who
sampled it b) name of the person who submitted it c) source of
supply d) date it was taken e) company name
◉ Every precaution shall be used when obtaining samples so that
samples reflect the ___________ and ____________ of materials they
represent. A) condition b) moisture c) nature d) structure. Answer:
A) condition c) nature
◉ When calibrating your density measure, you should fill the
measure with water between _______ temperature. A) 15 and 25
degrees B) 15 and 30 degrees C) 18 and 28 degrees D) 20 and 30
degrees. Answer: C) 18 and 28 degrees
◉ When testing bulk density of an aggregate having a maximize size
of 56 mm, the method of consolidation will be rodding. How many
times per layer do you rod? A) 20 B) 25 C) 30. Answer: B) 25
◉ When rodding during a bulk density test how many layers should
be used to fill the measure? A) 2 B) 3 C) 4 D) 6. Answer: B) 3