Engineering, 18.10.2019 20:10 Dolphin56
Acylindrical metal specimen having an original diameter of 11.53 mm and gauge length of 51.4 mm is pulled in tension until fracture occurs. the diameter at the point of fracture is 7.80 mm, and the fractured gauge length is 68.3 mm. calculate the ductility in terms of (a) percent reduction in area (percent ra), and (b) percent elongation (percent el).
Answers: 1
Engineering, 04.07.2019 19:10
What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?
Answers: 2
Engineering, 04.07.2019 19:10
Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj
Answers: 2
Engineering, 04.07.2019 19:20
Asimple speed reducer is composed of 2 spur gears. the pinion gear has a pitch diameter of 0.75" and 36 teeth while the driven gear has a pitch diameter of 4.0" and 192 teeth. a)-what is the diametral pitch of each gear? b)-if an electric motor rotating ccw at 3000 rpm is coupled to the pinion, what is the rotational speed of the driven gear? c)-if the torque delivered to the pinion is 1 n-m, what is the torque on the driven gear? d)-what is the power transmitted by the gear train?
Answers: 1
Engineering, 06.07.2019 02:30
An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?
Answers: 3
Acylindrical metal specimen having an original diameter of 11.53 mm and gauge length of 51.4 mm is p...
Mathematics, 12.10.2020 06:01
Mathematics, 12.10.2020 06:01
Mathematics, 12.10.2020 06:01
Mathematics, 12.10.2020 06:01
Social Studies, 12.10.2020 06:01
Biology, 12.10.2020 06:01
English, 12.10.2020 06:01
Arts, 12.10.2020 06:01
Computers and Technology, 12.10.2020 06:01
Mathematics, 12.10.2020 06:01
Mathematics, 12.10.2020 06:01
Mathematics, 12.10.2020 06:01