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Identify five (5) observations of a machine operator's station which could suggest that the machine has not been ergonomically designed
The concentric joint of problem is subjected to an increase in temperature of 1008F. Does this increase or decrease the tension in the bolts? By how much?
Determine the stress to cause yielding using Von Mises criteria for the system sx=20MPa,sy=10MPa, and txy=3MPa. Use the following two different approaches.Use the Von Mises criteria directly. syield (in MPa):
1. Inlet Exit Pressure 1.15 MPa 0.05MPa Velocity 30 m/sec 15.5 m/sec Height above datum 10 m 2m If the volume flow rate of the fluid is 40 m3 /s, estimate the net energy transfer from the fluid as work.
Calculate a solution using a relatively coarse CFX mesh (initial grid). This mesh should be without inflation or heavy local refinement
Determine the spring force FS necessary for equilibrium - usually rely on joint friction to aid in maintaining static equilibrium.
A cylindrical specimen of a metal alloy 48.0 mm long and 9.72 mm in diameter is stressed in tension. A true stress of 368 MPa causes the specimen to plastically elongate to a length of 53.5 mm.
An alloy steel Metric 10 × 1.5 screw (10-mm diameter, pitch p = 1.5 mm) is to be turned into a threaded hole and tightened to one/half of its proof strength. According to Table 32.2, the proof strength = 830 MPa. Determine the maximum torque that ..
1. Determine the change in the Gibbs function DG8 at 258C in kJ/kmol, for the reaction
Calculate the corrosion rate in mpy, pm/y, and mdd. What is the ranking of this carbon steel in this acid environment and determine the effect of time on the solution corrosiveness and the carbon steel corrodibility.
Water is pumped from a lower reservoir to a higher reservoir by a pump that provides 23kW of shaft power. The free surface of the upper reservoir is 46m higher than that of the lower reservoir. If the flow rater of water is measured to be 0.03m^3/s d..
A reaction is found to be 25 times faster at 400 K than at 300 K. Measurements of the temperature exponent yielded a value of 0.7. Calculate the activation energy of the reaction. How much faster will the reaction be at 1000 K?
For the items listed in the following chart, obtain a quantity of 48. Measure the indicated characteristics and determine the process mean and standard deviation. Use a sample size of 4, so that 12 samples are produced.
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