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Question 1
(a) What are minerals? Sketch different types of mineral crystal forms and list different types of rock forming minerals. Describe with examples the importance of mineral identification in engineering applications.
(b) Differentiate three types of rocks with examples. Also, summarize their properties for engineering applications.
(c) Describe briefly the process of mechanical and chemical weathering of rocks. Draw a typical soil profile and discuss the factors controlling soil profile development.
(d) Define ‘folds', ‘faults', ‘dip' and ‘strike' and explain each of them with neat sketches. What are synclines and anticlines? Discuss the first and second rules of anticlines.
Question 2
Critically analyse "Subsurface Exploration and Geotechnical Investigation Report" (attached) with respect to the ideas learned in Week#11. The analysis should contain sections such as overview of the report, aspects included in the report and aspects missing in the report. You should also include a section covering what would you do differently if you were assigned to complete the investigation and prepare report? Total analysis should not exceed 3 A4 pages.
Describe the crystalline or atomic structure of the following minerals: 1) Brucite 2) Gibbsite 3) Bentonite 4) Illite
A 4 X 8-ft solar collector has water circulating through it at the rate of 1.0 gallon per minute while exposed to sunlight with intensity 300 Btu/ft^2-hr.
Determine the value of Po, as a funciton of H, for these two investment alternatives to be equivalent at an interest rate of i=15% per year.
In that season, what are the hydraulic radius of the river, its mean velocity and volumetric discharge?
The superelevation rate is 0.084. Prepare a plot showing the ordinates required for the transition from the tangent section to the full superelevated section, assuming that the pavement width is 7.3 m wide. Make any necessary assumptions.
A tape is calibrated and found to measure 100.04ft between the 0- and 100-ft marks. What measurements should be laid out to establish a horizontal distance of 682.25ft?
Compute points on the velocity profile from the pipe wall to the centerline of a 3/4-in Type K copper tube if the volume flow rate of water at 60 degrees F is .50 gal/min.
A 170 kg granite rock (ρ = 2700 kg/m 3 ) is dropped into a lake. A man dives in and tries to lift the rock. Determine how much force the man needs to apply to lift it from the bottom of the lake. Do you think he can do it?
A consolidated-drained triaxial shear test on a normally consolidated clay yielded a drained friction angle of 28 degrees. If the confining pressure during the test was 15 psi, what was the major principal stress at failure.
Determine the acceleration when t = 4 s, the displacement from t = 0 to t = 10 s, and the distance the particle travels during this time period.
Write a paper on steel sustainability.
How would you define the coefficient of permeability? Give typical values of the coefficient for: a) fresh cement pastes; b) hardened cement pastes; c) commonly used aggregates;
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