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An orthogonal cutting operation is performed using a rake angle of 15°, chip thickness before the cut = 0.012 in, and width of cut = 0.100 in. The chip thickness ratio is measured after the cut to be 0.55. Determine
(a) the chip thickness after the cut,
(b) shear angle,
(c) friction angle,
(d) coefficient of friction, and
(e) shear strain.
Determine the development length required in the column for the bars shown. If the available development length is not sufficient to develop the tensile strength of the steel (fy).
A 150 lb block rests on a horizontal floor. The coefficient of friction between the block and the floor is 0.30. A pull of 40 lb, acting upward at an angle of 30° to the horizontal, is applied to the block.
Using Thoma's coefficient and the data in Figure 9.21, investigate whether the turbine is likely to experience cavitation. The vertical distance between the runner and the tailrace is 2.5 m, the atmospheric pressure is 1.0 bar, and the water tempe..
Assume that 10,000 spur gears, 11 /8 in. in diameter and 1 in. thick, are to be made of 70-30 brass. What manufacturing method would you consider?
at steady rate a power cycle having a thermal efficiency of 38 generates 100 mw of electricy while discharging energy
A system consisting initially of 0.5 m3 of air at 35°C, 1 bar, and 70% relative humidity is cooled at constant pressure to 29°C. Determine the work and heat transfer for the process, each in kJ.
An open pan of 150 mm diameter and 75 mm deep contains water at 25 C and is exposed to atmospheric air at 25 C and 50% R.H. Calculate the evaporation rate of water in grams per hour.
Find the percent of motion transmitted to the instrument panel if it weighs 50 lb.
The upper and lower control limits for a p chart are: LCL = 0 and UCL = 0.20. Determine the minimum possible sample size n that is compatible with this control chart.
A cold air-standard Brayton refrigeration cycle has a pressure ratio of 4 and a refrigeration rate of 15 kW. Air enters the compressor at -7oC. The high pressure air is cooled to 27 oC by rejecting heat to the surroundings. It is further cooled to -1..
If an elevator starting from rest accelerates at 10m/s and then decelerates at -1m/s until it reaches the top floor (ignore gravitational acceleration, assume g=0. Plot the corresponding a-t, v-t and s-t graphs.
one means of cooling in a hot dry climate is to use evaporative cooling where outside air is drawn into a unit where
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