Core TradesQuestion 54 of 700
In soil compaction, the maximum dry density of a soil is achieved when it is compacted at its:
a.Fully saturated moisture content
b.Completely dry (zero moisture) condition
c.Liquid-limit moisture content
d.Optimum moisture content
Explanation
A soil reaches its maximum dry density at the optimum moisture content, where water lubricates particles enough to pack tightly without filling all voids. Too dry, too wet, or fully saturated soils compact to lower densities.
Practice all 700 questions free — no signup required.
Related questions on this topic
- In differential leveling, a 'backsight' reading is taken on:
- A 'balanced' grading design PRIMARILY seeks to:
- Which field method determines in-place soil density by excavating a small hole and replacing the soil with a calibrated sand from a known-volume cone?
- Under Cal/OSHA rules, a trench that workers enter must be protected by shoring, sloping, or a shield system once its depth reaches at least:
- For an excavation made in soft or unstable (Type C) soil, the MAXIMUM allowable slope (horizontal to vertical) is generally:
- A driveway rises 3 feet in elevation over a horizontal run of 60 feet. What is its slope expressed as a percent?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB General Building (B) Trade Examination · How we review