Engineering, 05.10.2019 03:10, oliviaciscooc
The composite wall of an oven consists of three materials, two of which are of known thermal conductivity, ka = 30 w/m·k and kc = 65 w/m·k, and known thickness, la = 0.35 m and lc = 0.25 m. the third material, b, which is sandwiched between materials a and c, is of known thickness, lb = 0.25 m, but unknown thermal conductivity kb. under steady-state operating conditions, measurements reveal an outer surface temperature (on outer surface of material c) of ts, o = 22◦c, an inner surface temperature (on inner surface of material a) of ts, i = 600◦c, and an oven temperature of t[infinity] = 800◦c. if the inside convection coefficient h = 25 w/m2 ·k, what is the value of kb?
Answers: 3
Engineering, 03.07.2019 23:20, abbz13
Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct
Answers: 3
Engineering, 04.07.2019 19:10, Lexi5170
A)-explain briefly the importance of standards in engineering design. b)- what is patent? c)-explain the relationship between these standards: b. s. and b. s.en d)- in engineering design concepts, types of loads and how they act are important factors. explain.
Answers: 3
Engineering, 04.07.2019 19:10, kelseiroll9759
Ahelical coil spring has a mean diameter of 50 mm, a wire diameter of 5.5 mm and is wound with a pitch of 10 mm. the spring steel has an ultimate strength of 1250 mpa. find the force needed to compress the spring solid and the wire stress in this condition. state whether the spring will return to its initial length.
Answers: 1
Engineering, 04.07.2019 19:10, 592400014353
For a process taking place in a closed system containing gas, the volume and pressure relationship is pvi-constant. -1.5 bar, the process starts with initial conditions, pi = =0.03 m3 and ends with final volume, v2-0.05 m3 determine the work done by the gas.
Answers: 2
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