Engineering, 21.06.2021 18:10 kkatlynn
A concrete mixer can produce 50 m3 of concrete by employing 5 workers for 8 hours/day. Daily rate of one worker is 50 L. E/day. This daily production can be increased to 100 m3/day by employing 3 more workers at the same rate. - Calculate the labor productivity for both cases. - Decide whether to employ the additional workers or not
Answers: 3
Engineering, 04.07.2019 18:10
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
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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
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
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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
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