SOIL MECHANICS EXAMs| Package| Questions with Correct Answers|

soil CORRECT ANSWER the uncemented aggregate of mineral grains and decayed organic matter (solid particles) with liquid and gas in the empty spaces between the solid particles mechanics CORRECT ANSWER branch of physics dealing with force and motion soil mechanics CORRECT ANSWER engineering sci...

What happens during fill operations? CORRECT ANSWER When fill operations are taking place the new soils are usually compacted in place to improve the strength characteristics. What is compaction CORRECT ANSWER Compaction in general terms is the densification of soil by the reduction in voids (m...

What does soil classification systems provide to geotechnical engineers? CORRECT ANSWER Soil classification systems provide a common language to express general characteristics of soil What are most soil classification systems based off? CORRECT ANSWER index properties such as particle size and A...

Add Blow Counts 2 and 3 CORRECT ANSWER The Soil Report discusses the Penetration Resistance "N" Blow Count Summation procedure. What is the correct summation procedure? a 140-pound hammer falling 30 inches CORRECT ANSWER What type of hammer and fall distance was utilized for sampling the soil b...

Porosity CORRECT ANSWER Is defined as the ratio of the volume of voids to the total volume Degree of Saturation CORRECT ANSWER Is defined as the ratio of the volume of water to the volume of voids Moisture Content CORRECT ANSWER Is also referred to as water content and is defined as the ratio ...

True CORRECT ANSWER T/F: Hydraulic gradient, i, is defined as the energy or head loss, h, per unit length, l. True CORRECT ANSWER T/F: Seepage velocity, the actual velocity of the water flowing in the voids, is greater than the discharge, or superficial, velocity and is related by porosity. De...

What is the sieve number that is used to separate fine sand from medium sand? CORRECT ANSWER 40 What is the grain size diameter (in mm) that is the dividing line between fines and sand particles sizes? CORRECT ANSWER 0.075 TF: The diffuse double layer is the basic structure of each clay partic...

What is the definition of Shear Strength CORRECT ANSWER The largest stress a soil can take without failure (the greatest stress the material can sustain) What is the definition of shear CORRECT ANSWER The failure mode due to the compressive forces What are the two design criteria that must b...

Q1.1: What is the sieve number that is used to separate fine sand from medium sand? CORRECT ANSWER #40 Q1.2: What is the grain size diameter (in mm) that is the dividing line between fines and sand particles? CORRECT ANSWER 0.075mm Q1.5: Mass of wet soil and can before oven = 74.8g Mass of d...

What is a settlement? CORRECT ANSWER a displacement caused by a change in stress What is the symbol for settlement? CORRECT ANSWER δ What are the three different types of settlements? CORRECT ANSWER -> Distortion -> Consolidation -> Secondary Settlement What is the equation for ...