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1- In a 1500-mm rock core run, the following rock pieces were recovered from a borehole:
55mm, 108mm, 76mm, 102mm, 132mm, 276mm, 95mm, 168mm, 21mm, 63mm. find the RQD and the core recovery ratio.
2- Point load tests were carried out on two sedimentary rock speci¬mens of 54 mm diameter (NX core), as shown the following figure The loads P1 and PII at failure are 6.28 kN and 4.71 kN, respectively. Find the point load strength index Ism) in the two directions and compute the point load strength anisotropy index 1,(s0)
Suppose that the distance from the lake outlet to the withdrawal cannot be more than 20 mi. What should be the new volume of the lake?
Suppose that a water treatment plant has a Parshall Flume with a 4 ft wide throat. a) If the upstream depth of the water (ha) is 1 ft and the depth of the water in the throat section (hb) is 0.65 ft, what is the flow rate in gpm
A horizontal water jet impinges against a vertical flat plate at 25 ft/s and splashes off the sides in the vertical plane. If a horizontal force of 350 lbf is required to hold the plate against the water stream,
Would a 30 slot stainless steel screen (2.0 m long; located at the bottom of the well) have sufficient collapse strength for this application?
Assume the actual water temperature for calibrating a 1/3 ft3 measure was 65 degrees F. If you had used a water temperature of 75 degrees F for your calibration, how much error would there be in your volume calculation (both in ft3 and as a percen..
1. draw a plan of a typical strip mine showing all operational features and equipment.2. answer the followinga. why is
if the enginer is mounted floatiing on very weak spring, what is the amplitude of the vertical vibration of the engine? (b) if the engine is mounted solidly on a rigid foundation, what is the alternating force amplitude transmitted? Assume the con..
A 24-inch pipeline branches into a 12-inch and an 18-inch pipe, each of which is 1 mile long, and they re-join back into a 24-inch pipe. If the flow rate is 30 CFS in the main pipe
A pump of 80% efficiency lifts water from one large open tank to another; the difference in water surface elevations is 20 feet. The pipe is relatively smooth (f = 0.0122), and has 3 elbows, each with a loss coefficient of 2/3.
Stack gas samples were collected from a sample of 50 incinerators in Chicago. Of the 50 samples, only 18 met an environmental standard for the concentration of a hazardous compound. Can it be concluded that fewer than half of the incinerators in C..
A car is travleing towars a 20 degree slope at 60 mph. The wheels have a radius of 12 in. and the car's wheelbase is 100 in. What is the angular rotation rate of the car immediately after the front wheel contacts the slop
A car is traveling toward a 20 degree slope at 60 mph. The wheels have a radius of 12 in, and the car's wheelbase is 100 in. What is the angular rotation rate of the car immediately after the front wheel contacts the slope
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