ENGINEERING AND DESIGN PRACTICE SET
ANSWERS FULL SOLUTION
◉ What is a modified proctor used in
Answer: It is used in base, sub grade, MSE wall back fill materials
◉ Modified proctors are created how
Answer: With a 10lb hammer(rammer) on a 18" drop with 56 blows
per layers with 5 layers in total.
◉ What is a standard proctor used in
Answer: It is used in embankment and structure back fill materials
◉ Standard proctors are created how
Answer: With a 5.5lb hammer(rammer) on a 12" drop with 25 blows
per layer with 3 layers in total
◉ Comparison between VT and QC density test tolerance
Answer: 2 lbs/pcf
◉ What is the STRG
, Answer: Sampling, Testing, and Reporting Guide (state wide)
◉ A job guide schedule is
Answer: project specific
◉ The material identification number for embankment in the
laboratory is
Answer: 004L
◉ The material identification number for embankment in the field is
Answer: 004F
◉ The material identification number for base is
Answer: 030
◉ PP is short for
Answer: project personel
◉ Sampling in the field it is important to
Answer: sample each type of material and have enough for a
representative sample