Engineering, 28.01.2020 06:31 akheel4818
Consider the base plate of an 800-w household iron with a thickness of l 5 0.6 cm, base area of a 5 160 cm2, and thermal conductivity of k 5 60 w/m·k. the inner surface of the base plate is subjected to uniform heat flux generated by the resistance heaters inside. when steady operating conditions are reached, the outer surface temperature of the plate is measured to be 112°c. disregarding any heat loss through the upper part of the iron, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the plate, (b) obtain a relation for the variation of temperature in the base plate by solving the differential equation, and (c) evaluate the inner surface temperature. (c) 117°c
Answers: 1
Engineering, 04.07.2019 18:10
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
Engineering, 04.07.2019 19:10
The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
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Engineering, 04.07.2019 19:10
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
Consider the base plate of an 800-w household iron with a thickness of l 5 0.6 cm, base area of a 5...
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