Engineering, 12.07.2019 22:30 artursino
Asteel bar 100 mm long and having a square cross section of 20 mm on an edge is pulled in tension with a variable load similar to a tensile test. if the bar started its plastic deformation when the load was 90 n, at which the bar elongated 1 mm. in addition, the bar started necking at 200n, at which the elongation was measured to be 3 mm. calculate the following mechanical parameters: a)- yield strength b)-young's modulus of elasticity c)-engineering tensile strength d)-strain-hardening coefficientstrength coefficient
Answers: 2
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
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Engineering, 04.07.2019 18:10
Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines
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Engineering, 04.07.2019 18:10
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
Answers: 1
Asteel bar 100 mm long and having a square cross section of 20 mm on an edge is pulled in tension wi...
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