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A metal specimen with an original diameter of 0.45 in. and a gage length of 2.75 in. is tested in tension until fracture occurs. At the point of fracture, the diameter of the specimen is 0.21 in. and the fractured gage length is 3.71 in. Calculate the ductility in terms of percent elongation and percent reduction in area.
for the mechanism shown in fig 8.81 link 2 rotate at a constant angular velocity. determine the velocity and the
the heat flux passing through a plane wall of a well-insulated house is q 2.5 btuhr-ft2 when the temperature of the
a fluid speficic weight 60 lbft3 flows upward at an inclination of 30 degrees above the horizontal. if the flow is at
steam enters an adiabatic turbine at 3 mpa and 350 celsius and leaves the turbine at 75 kpa with a quality of 89. if
1. with reference to basic constructional features contrast the methods of compression employed by positive
a a diesel air-standard cycle has a condition at the beginning of the isentropic compression process defined by t1 300
the vessel shown is formed by bending a plate to nearly a complete circle and then riveting a second plate to close it.
1. a hydro-electric plant is used to convert the potential energy of the water behind the dam into electricity. the
let us consider a solar powered water heater. the solar collector surface is coated with black chrome whose emissivity
a rigid tank contains 0.1-kg of air at 300 kpa and 300 kelvin. the air is now heated until the pressure doubles.
determine the concentration of carbon in an iron-carbon alloy for which the microstructure consists of proeutectoid
the old rigid tank problem a tank has a volume of 600 gallons and holds 300 lbm of water at 40 psig pressure. what is
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