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10 kPa of pressure required to push a 3 in^2 piston 5 mm into the compacted soil. Compute the CBR (%) if the same 3 in^2 piston required 100 kPa to penetrate 5 mm in calibrated rock soil.
The distance AB is measured as 322.33 ft, the angle at A is measured as 32º15' and the angle B is determined to be 41º30'. Determine the stations of the PC and PT.
Given for a simple curve: R = 500 ft, I = 58º08'40" and the station of the PI is 38+17.25. Set up the field notes for staking out the curve with deflection angles and incremental chords.
each month the splendid dry cleaning company buys one barrel ( 42 gal., 0.160 m^3) of tetrachloroethylene (C2Cl4) (M.W.= 166, p= 1.594 g/cm^3) ninety percent of the fluid is lost to the atmosphere a
A simple horizontal curve of radius 750 ft connects two tangents that intersect at an angle of 66º30'. Compute the parts of the curve, including T, L, LC, E, M, and D.
The faster you try to open a screen door, the more resistance you encounter. When the door is released, the length of the closer decreases linearly with time until it returns to its intial length. D
A vertical gate keeps water from flowing in a triangular irrigation channel. The channel has a 4-m top width and a 3-m depth. If the channel is full, what is the magnitude of the hydrostatic force o
It is required to dewater a construction site 80 m by 80 m. The bottom of the construction will be 1.5 m below the initial water surface elevation of 90 m. Four pumps are to be used in 0.5-m diamete
A torque of T = 3.00 kN-m will be applied to the hollow thin-walled aluminum alloy section. If the section has a uniform thickness of 4 mm, determine the magnitude of the maximum shear stress develo
The torsional assembly consists of a solid bronze [G = 49 GPa] segment (1) with diameter d1 = 90 mm securely connected at flange B to solid stainless steel [G = 89 GPa] segments (2) and (3), with di
Three prismatic bars, two of material A and one of material B, transmit a tensile load P. The two outer bars (material A) are identical. The cross-sectional area of the middle bar (material B) is 50
A 24-in.-wide by 0.100-in.-thick by 140-in.-long steel sheet is to be formed into a hollow section by being bent through 360° and having the long edges welded (i.e., butt-welded) together. Assum
A construction company requires to know how much of additives A and B to use to prepare concrete to be used in a freezing environment (northern location). The concrete mix should contain a minimum c
A multiple-piston hydraulic jack has two output pistons, each with an area of 250 cm^2. The input piston, whose area is 25 cm^2, is concerned to a lever that has a mechanical advantage of 9:1.
Determine the bulk modulus of elasticity (in N/m^2) of a liquid that has a 1.10 percent volume decrease because of an increase in pressure from 1,000 N / cm^2 to 11,000 N / cm^2.
A steel tank hold 120 ft^3 of water at atmospheric pressure(14.7psi and 68.4 degrees f). the water is subjected to a 100 fold increase in pressure. determine the initial weight and final density of
you are designing a highway to AASHTO guidelines on rolling terrain where the design speed will be 65 mi/hr. At one section, a +1.25% grade and a -2.25% grade must be connected with and equal tangen
suppose we have a 100-volt battery connected with a 100-ohm resistance. The current is then 100/100=1 amp. how much power is produced. if we double the voltage, what will the current be and what wi
A rectangular steel bar shown is fixed at the right end has a thickness of 20 mm. The temperature is increased by 20C and a force F is applied as shown midway along the bar. Use the properties E=200
a flat steel plate of 10mm thickness varies in width from 150mm to 300mm over a length of 1.5m. Determine the elongation of the plate under a tensile load of 250KN
List the densities in solid, liquid and gaseous state. Also compare the densities for each of them and calculate the density it will have in any ideal gas state.
A steel bar serving as a vertical hanger to support heavy machinery in a factory is attached to a support by the bolted connection. The main part of the hanger has a rectangular cross section with w
A rectangular gate 6 ft tall and 5 ft wide in the side of an open tank is held in place by the force F as indicated in the figure. The weight of the gate is negligible, and the hinge at O is frictio
an apple weighs 60g and has a volume of 75cm^3 in a refrigerator at 8 degrees C. What is the apple's density List three intensive and two extensive properties of the apple.
A solid circular shaft AC of total length L=L1+L2 is fixed against rotation at ends A and C and is loaded by a tourqe T_b at joint B. If the diameter of the two segements of the shaft are in ratio d