Engineering, 20.08.2019 21:30 ValeryGi3721
Sae 30 oil at 20°c flows between two horizontal 0.50-m-wide parallel plates sepa- rated by 30 mm. the length of the top and bottom plates in the direction of flow is 2 m, the bottom plate is stationary, the top plate moves at 3 cm/s, an adverse pressure gradient of 700 pa/m is applied between the plates, and the flow is laminar between the plates. determine the flow rate between the plates and the force that must be applied to move the top plate.
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Engineering, 04.07.2019 18:10
Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges
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Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
Engineering, 04.07.2019 18:20
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
Answers: 2
Sae 30 oil at 20°c flows between two horizontal 0.50-m-wide parallel plates sepa- rated by 30 mm. th...
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