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An A36 structural steel (36 Ksi yield strength) W8 x 40 member has been physically cut to 20 ft. long. This member is to be installed as a vertical column that supports a centric, axial compressive design load of 160.000 lbf and can be modeled as one end fixed and one end pinned. Required:
a. What is the factor of safety against yielding?
b. What is the safe allowable load (lbf) according to Code 1 (AISC).
c. Is this column acceptable to use with the design load according to Code 1 (AISC) and why?
A computer technician can handle on average 5 service calls per day. The cost of adding a technician (C1) is $200 per day and the estimated cost of waiting per incident (C2) is $250 per day.
The car's gear reduction ratio is 3.5 to 1, driveline efficiency is 90%, driveline slippage is 3.5%, and the road-wheel radius is 15 inches. What will the car's maximum acceleration be under these conditions on a level road
An in-compressible fluid flows horizontally in the x-y plane with a velocity given by u = 33 (y/h)^1/2 , where y and h are in meters and h is a constant. Determine the average velocity for the portion of the flow between y = 0 and y =h.
An activated sludge aeration tank has a width of 14m, a length of 15m and an effective liquid depth of 4.5m. The secondary clarifier has a diameter of 25m. The plant operating parameters are as follows
The pins on the frame at B and C each have a diameter of 0.25 in. If these pins are subjected to double shear, determine the average shear stress in each pin.
A 1047 steel plate is subjected to a tensile stress of 120 MPa. Given its fracture toughness is 45 MPa?m and Y = 1, (a) Determine the critical crack length to assure the plate will not fail under static loading.
The owner of a dive shop wants to purchase a constant displacement air compressor capable of simultaneously filling 10 SCUBA tanks. each having a volume of 0.4 ft^3. in 20 minutes.
An incompressible fluid flows horizontally in the x-y plane with a velocity given by v = 20 (z/h)^(1/3),where z and h are in meters and h is a constant.
At the end of the first 5 years, the company upgraded the analyzer at a cost of $10,000. Following the upgrade the lab purchased another 5 year maintanence contract for $1000 a year, payable at the end of each year.
Compute the energy loss in a 90 degree bend in a steel tube used for a fluid power system. The tube has a 0.5 inch outside diameter and a wall thickness of 0.065 inches. The mean bend radius is 2.00 in. The flow rate of hydraulic oil is 3.5 gal/mi..
Find the required energy input Ep and ?p to be supplied by the pump. Assume the electric motors are set to turn the centrifugal pump impeller at ? = 4000 rpm
Using the aluminum alloy 2014-T6, determine the largest allowable length of the aluminum bar AB for a centric load P of magnitude (A) 150 kN b=50 mm h=20 mm
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