net. A. True B. False Which of the following represent field-based tests for det
ID: 1713035 • Letter: N
Question
net. A. True B. False Which of the following represent field-based tests for determining permeability (i.e. hydraulic conductivity): A. Constant head test B. Falling head test C. Ring permeameter test D. Both A and B E.None of the above The Modified Proctor compaction test delivers more compactive effort in the laboratory compared to the Standard Proctor compaction test. A. True B. False A permeable boundary represents which of the following boundary conditions in a flow net: A. Flow channel B. Flow line C. Not a boundary condition D. Equipotential line E. None of the above Which of the following is an advantage of standard penetration testing (SPT) in relation to cone penetration testing (CPT) A. Suited to gravelly soil C. Suited to very soft soils B. Continuous data E. Both B and C D. Soil samples obtained According to USCS and AASHTO, the #40 sieve separates coarse grain sizes that are considered gravel from those that are considered sands. A. True B. False Residual soils are transported by which of the following mechanisms: A. Glaciers B. Lakes C. Wind D. Rivers E. They are not transported The constant head permeater test for determining permeability is best suited for granular soils A. True B. False For which of the following laboratory tests are samples obtained using a hand auger boring suitable: A. Consolidation B. Grain size testing In general, increased compactive effort tends to decrease the optimal water content and increase the maxiumum dry unit weight.. A. True B. False C. Shear strength testing D. Both A and B E. All of the aboveExplanation / Answer
I have answered all the questions with explanations of my knowlege. Doubts are welcomed. give a thumbs up if ok.
Ques 1 : option (c) ring permeameter test. (its an insitu hydraulic conductivity test)
Ques 2 : option (a) true ( MPCT compactive effort is 4.55 times SPCT)
Ques 3 : option (d) Equipotential line.
A submerged permeable soil boundary is an equipotential line. The boundary between permeable and impermeable soil materials is a flow line. Equipotential lines intersecting a phreatic surface do so at equal vertical intervals.
Ques 4: option (d) soil samples are obtained (this is the only advantange of spt over cpt)
Ques 5: option (b) False ( Mesh no 4 which is 4.76 mm size separates gravel and sand)
Ques 6: option (e) they are not transported ( residual deposits are one which remains at the site of formation)
Ques 7: option (a) True (The constant head method is particularly suitable for relatively coarse grained soil)
Ques 8: option (b) grain size testing ( we get disturbed sample so used for classification tests)
Ques 9: option (a) True (obviously)
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