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1.A sample of moist soil has a volume of 40.5 cc mass weight of 59.2 gms. After drying it has a mass weight of 48.3 grams. The specific gravity of the solids are 2.68. Compute the degree of saturation, water content and void ratio.
2.The jib crane is supported by a pin at c and a rod at ab if the load has a mass of 2Mg with its com located at g determine the horizontal and vertical components of the reaction at the pin c and the force developed in rod ab on the crane when x=5m
3.Determine flow rate in a series pipe system given that roughness value and dimension(diameter and length) of pipes.
4.A 6 inch diameter water main in your town has become very rough due to rust and corrosion. It has been suggested that the flowrate through this pipe can be increased by inserting a smooth plastic liner into the pipe. Although the new diameter will be smaller, the pipe will be smoother. Will such a procedure produce a greater flowrate? List all assumptions and all calculations.
Calculate the super-elevation required for a horizontal curve on a two-lane, two- way highway with 60 mph design speed, and a 1200 ft. radius curve. What is the required length of the spiral curve?
Do the problem again but for an alum or iron floc with an overflow rate 20 m3/day.m2?
An adiabatic piston-cylinder device equipped with a spring maintains the pressure inside at at 300kPa when the volume is 0, and 3000kPa when the volume is 5 m3. The device is connected to a steam line maintained at 1500kPa and 200 C
Where z is the water height above the center of the valve. Determine (a) the initial discharge velocity from the tank and (b) the time required to empty the tank. The tank is considered to be empty when the water level drops to the center of the valv..
The tube supports the four parallel forces. Determine the magnitude of the forces and acting at C and D so that the equivalent resultant force of the four forces acts at point O.
A 12in diameter water main in your city has become very rough due to rust and corrosion, it has been suggested that the flowrate through the this pipe can be increased by inserting a smooth plastic liner into the pipe.
To avoid boredom, employees are assigned all three tasks at different times during the shift. Each employee has to work at least half an hour at each station during a five hour shift. How much time should each employee spend at each in order to maxim..
An infinite, long, solid, vertical cylinder of radius R is located in infinite mass of compressible liquid. Provide the velocity distribution for steady flow case
Two steel rods with fixed supports at A and C are attached by a rigid flange at point B and a downward load of 120 kN is applied to the flange. The upper rod has a cross section of 800 mm^2 and the lower rod has
The electric motor at A exerts a torque of 800N.m on the steel shaft from A to D. This has a torque of -300N.m at B and -500N.m at C. the dimensions are
a two story school has interior columns that are spaced 15 ft apartin two perpendicular directions. If the loading on the flat roof isestimated to be 20 lb/ft^2 determine the reduced live loadsupported by a typical interior column at (a) the ground f..
A spherical gas container having an outer diameter of 15 ftand a wall thickness of 0.90 in. is made of a steel for whichE =29*106 psi and v = 0.29. Knowingthat the gage
In the Civil War there were numerous incidents in which the bullet fired from a Union soldier's rifle struck and fused with the bullet from a Confederate's rifle. Assume the impact scenario.
Design a square column footing for a 18-in square tied interior column that supports a dead load D= 220 k and a live load L=180 k. The column isreinforced with eight bars, the base of the footing is 4 ft below grade
Did the moslem caliphates contribute to the fall of rome? if so how?
what does the free body analysis look like and how to calculate the loads into the horizontal and vertical members of a free standing jib hoist with a 15' boom and 5000 pound capacity
A square plate of uniform thickness has a side length of 25 cm that hangs vertically from hinges at its top edge, When horizontal jet strikes the plate at its center, the plate is deflected and comes to rest at an angle of 30o to the vertical.
If the ball strikes the bottom of the elevator shaft in 3s, determine the height of the elevator from the bottom of the shaft at the instant the ball is released.Also find the velocity of the ball when it strikes the bottom of the shaft.
A rectangular culvert 4 feet x 6 feet is running full and discharging 3,500 cfm. There is no friction loss. Find the velocity in fps. The culvert empties into a 10 ft wide culvert and the velocity reduces to 0.6 fps.
An intelligence data bank center requires power 24 hours a day, 7days a week. If the main power grid fails, a backup power supply isinitiated.
A refrigerator compressor compresses 0.5 kg/s of saturated R-134A vapor at -10C to 1000 kPa and 50C. The compresser has a point that is not insulated and losess heat to the surroundings,
What is the bulk densityof a box filled with 88 marbles, each of which weighs 1/2 oz, wherethe box weighs 9 oz and has interior measurements of 4" x 5" x10"
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