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The allowable tensile force on drill pipe is often adjusted to account for the make-up torque that is applied while screwing neighboring segments together. Consider a drill pipe with a 5 in. outer diameter and 4.408 in. inner diameter.
(a) If the yield stress of the pipe in tension is 100000 psi, what is the allowable tensile force on the pipe disregarding the make-up torque?
(b) Say the make-up torque is 26000 lb-ft. What is the allowable tensile force when the make-up torque is accounted for?
Wheeling-Pittsburg steel is investigating whether it should replace some of its basic oxygen furnace equipment now or wait to do it later. The cost later (3 years from now) is estimated to be 1,700,000.
The discharge of the river at the basin outlet is measured at an avarage of 650 cfs. assuming that the charge in storage for the system is essentially zero, estimate the ET losses for the area in inches and centimeters for the year
Select the best rectangular HSS for a column to support a service dead load of 30 kips and a service live load of 90 kips. The member is 22 feet long and is pinned at the ends.
Land is extremely valuable in this area therefore to win this job you need to consider innovative approach to reduce the waste areas
The design capacity of a steel pile is 250 kN. The pile is driven by a steam hammer with a manufacturer's hammer energy rating of 36 kN • m. Determine the average penetration of the pile
Determine the force in each member of the truss and state if it is in tension or compression. Set P=400 lb and d=4 ft.
Given this 10-yr record of annual precipitation in inches (28,21,33,26,29,27,19,28,18,22), plot a rough precipitation frequency curve. Tabulate the data to be plotted and show the method of computation. (note: the frequency in percent of years is ..
A compacted fill is being built with two sheep's-foot drum rollers, 5 ft wide, operating at 1.5 mi/hr. Four passes are required to obtain the 5-in. depth of compacted fill to meet the specifications density.
In what sequence are these oxidized compunds reduced by the bacteria, and why is the substrate that is reduced first preferred by the hydrogen acceptor. When do obnoxious odors appear
Considere a person who consumes 2100 kcal par day, of which 2000 kcal is converted thermal energy.( the remaining 100 kcal is used to do work on the environment.) The person has a surface area of 1.8 m² and is dressed in a bathing suit.
Design a cord (design the constants k and ) so the cord stretches 2.5 times the unstretched length, and the acceleration of the jumper doesn't exceed 3g, and the cord has zero stiffness at the bottom of a 400ft drop.
Use the Muskingum method to route a flood through a reach a river. The base flow is 100 cfs, and the incoming flood flow increases 50 cfs every 2 hr over a 6 hr period and the subsides at the same rate.
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