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A 4.00-cm-diameter, 0.80-m long rod of aluminum 7075-T6 is subjected to an axial tensile force with a factor of safety of 1.75. The yield stress and modulus of elasticity of aluminum 7075-T6 are 500. MPa and 210. GPa, respectively.
Estimate the shaft normal cross sectional area in in2.
a. 1.9
b. 1.94
c. 2
d. 1.95
Estimate the shaft normal cross sectional area in m2.
a. 0.0126
b. 0.0080
c. 0.00628
d. 0.00126
Estimate the shaft maximum allowable tensile force (KN) using a factor of safety of 1.75.
a. 300
b. 359040
c. 285
d. 359
Convert the Modulus of Elasticity of 210 GPa to lb/in2.
a. 3.0 X10^7
b. 3.04 x10^7
c. 3.046 x 10^6
d. 3.05 X10^7
Estimate the shaft elongation in millimeters with an applied force of 300KN.
a. 0.000909
b. 0.9
c. 0.00126
d. 0.00114
Estimate the shaft strain with an axial force of 300. KN.
a. 0.00114
b. 0.00126
c. 0.909
d. 0.349
Calculate the undrained shear strength at a depth of 120 ft below the mudline. Calculate the undrained shear strength at a depth of 120 ft below the mudline if the soil has an OCR of 2.5 .
Footings for a structure are to be built beneath a basement slab on a clay soil at a depth of 20 ft below present ground level. The groundwater table is 15ft below the ground surface. The soil void-ratio is about 0.087.
determine the preassure in psi at a depth of 20 ft below the free surface of a body of water and find the absolute pressure when the barometer reads 29.9 inches of mercury.
A) Estimate the aquifer porosity and hydraulic conductivity, B) determine the flow rate per unit width of the aquifer, C) determine the specific discharge, D) determine average linear velocity of the flow assuming steady unidirectional flow
If an additional 11ft lane is added (each direction) and all other factors stay the same, what will be the new level of service?
A soil sample was taken from a proposed cut area in a highway construction project and sent to a soils laboratory for a compaction test, using the Standard Proctor compaction procedure. Results of the test are as follows:
A freeway exit ramp has a single 12-foot lane and consists entirely of a curve with a central angle of 90 degrees and L=628 feet. If the distance cleared of obstacles is 19.4 feet from the centerline, what design speed was used
If the amount of heat transfer in the HE unit is 2460 kJ per kg of steam, what is the magnitude of shaft work obtained from the turbine in kW?
Determine the maximum service load W (kips) at the mid-height of the beam-column shown in the accompanying figure 2.1. Assume the member is hinged with respect to bending in both x and y directions at the top and bottom.
The fire department proposes to approach the truck from the upstream side and heavily spray the truck with water to prevent an explosion. Will this help to reduce the chlorine concentration downstream?
The base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque. If the overall gear reduction ratio is 8 to 1, what is the maximum acceleration from rest (in ft/sec^2) for.
Calculate the equilibrium concentration of dissolved oxygen in 15oC water at 1 atm, and again at 2000 m elevation.
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