Calculate the final output using the Centroid method for the following strength values Provide step by step calculations Strength Calculations Min 0.2 Low 0.2 Time Water Avg Taken Med 0.4 0.5 level Max 0.4 High 0.3 Time Taken 1. Min - Range 0 30 60 2. Avg - Range 30 60 90 3. Max Range 60 90 120 Water Level 1. Min Range 0 5 10 2. Avg - Range 5 10 15 3. Max Range 10 15 20
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- The same engineer decides to look into rates of cooling for liquids toexperiment with different cooling solutions for servers. She finds thatthe rate of cooling for one liquid can be modelled by the equation:y = 48 × 0.99t(0 ≤ t ≤ 80)where y is the temperature of the liquid in degrees Celsius and t is thetime in minutes.(i) State whether the type of reduction for this model is linear orexponential. Describe how reduction rate differs between linear andexponential functions. (ii) Calculate the temperature when t = 20. [3](iii) Write down the scale factor and use this to find the percentagedecrease in the temperature per minute. (iv) Use the method shown in Subsection 5.2 of Unit 13 to find the timeat which the temperature is 30◦(v) Determine the halving time of the temperature.? (sigma) = 90 40 0 40 −50 0 0 0 0 MPaa. Plot the shear and normal stresses on a given oblique plane (rotated plane) on a graph (stress vs. angle) and show the max. shear plane and the principal planes. (like in the image, using excel) b.If the steel sample has a Young’s modulus of 193 GPa, compute the dimensional changes of the plate under the above loading condition. Shear moduli is 70Gpa.fill in the blanks. 1) annealing and normalizing in steel is used to. a) none b) dispersion strengthening c) improve machinability d) eliminate cod work 2) process annealing in steels is used to a) none b) dispersion strengthening c) improve machinability d) eliminate cod work 3) cast iron has carbon a) none b) >2.0% c) <2.0% d) >7% 4) low carbon steel contains carbons. a) none b) 0.03% c) 0.3% d) 5% 5) we can obtained excellent dimensional tolerances and surafce finishes by the process. a) Strenghtening process b) hot working c) none d) cold working 6) in most alloys phase transformation is causing by. a) solution b) dispersion strengthening c) phase temperature d) none 7) hypereutectoid steel contain carbon. a) none b) >022% c) <0.770% d) >0.770% 8) in alloys increasing both the atmic size difference and the amount of allying element…
- Determine the young’s modulus value of each material testing, and indicate which material is the shaft made from. Use the experimental data provided from the torsion test conducted on the shafts from three different materials. The materials included in this test are Aluminium, Brass, and Steel. Ensure you work through the provided tables and indicate which results correspond to which material. Dimensions Diameter (mm) 6 Length (mm) 77 J= (π ×D^4)/32 G= TL/θJ Degree Radian Material 1 Material 2 Material 3 1 0.017453 1.11 1.83 0.47 1.5 0.02618 1.47 2.46 0.76 2 0.034907 1.84 3.2 1.01 2.5 0.043633 2.72 3.93 1.32 3 0.05236 2.7 4.72 1.65 3.5 0.061087 3.11 5.54 1.99 4 0.069813 3.36 6.4 2.32 4.5 0.07854 3.98 7.27 2.66 5 0.087267 4.41 8.18 3 5.5 0.095993 4.84 9.15…1. A closed coiled helical spring, is made out of a 10mm diameter steel rod, has 10 complete coils each of mean diameter of 80mm. Calculate for force of 200N: (a) the stress induced in the section of the rod (b) the deflection under the pull (c) the amount of energy stored in the spring during extension. Take G=84GPa. 2. A composite spring has two closed coiled springs connected in series, each spring has 12 coils at a mean diameter of 25mm. Find the wire diameter for one if the other is of 2.5mm diameter and the stiffness of the composite spring is 700N/m.Estimate the greatest load that can be carried by the composite spring, and the corresponding extension, for a maximum shear stress of 180MPa. Take G=80GPa.A machine component is subjected to a flexural mean stress of 88 MN/m2 and variable stress of 240 MN/m2. Take yield strength = 0.55 Ultimate strength; Endurance strength = 0.5 Ultimate strength; and factor of safety = 2. Compute and choose the nearest value of minimum ultimate strength according to Gerber relation. a. 630 MN/m2 b. 870 MN/m2 c. 991 MN/m2 d. 1093 MN/m2 Clear my choice
- Suppose we got the following data during a test of a 2- stroke engine in which gas is usedas a fuel:Diameter of the piston = 149 mmStroke length = 179 mmClearance volume = 0.88 literrpm of the engine = 302Indicated mean effective pressure = 6.0 barGas consumption = 6.0 m3/hCalorific value of the gas (fuel) = 16990 kJ/m3Make a clear sketch the geometry of this engine using the data and determine thefollowing:i. Indicated power developed by the engine in watt.ii. Air Standard Efficiencyiii. Indicated thermal efficiency of the engine.Determine the blade length for a wind turbine that supplies an electrical power output of 1.95 MW and given the following parameters: Wind speed = 51 km/hr The gear, generator and electric efficiencies are 93%, 95% and 91% respectively. The power coefficient of the wind turbine is the maximum possible as given by the Lanchester-Betz limit. Assume the atmospheric air conditions are 1.01325 bar and 27 °CAnswer no. 17, given the number 16 below. The computed Q and time in 16 are, Q= 15 862.7953 kJ, t=143. 1397 mins. Derive with the formula below, show the cancellation, explain the step by step and DRAW a free body diagram/figure. refer with this: PE1 + KE1 + U1 + WF1 + Q1 + W1 = PE2 + KE2 + U2 + WF2 + Q2 + W2 + E losses.
- Material property of the given system: Tensile strengthσt=11000 daN / cm^2 and Torsional strengthSince τ=5000 daN /cm^2, find the System's Coefficient of Safety (EMF cis) for only point A using the MOH'R circle method?(Dimensions are given on the system) Rod diameter D=4 cm, Rod length L=100 cm, Vertical applied to the rodforce F=500 daN and Torque T=1000 daN cmplease show a step by step solution, thank you! What is the whal factor of a spring if it has the characteristics average diameter 200 mm, wire spring diameter 30mm, modulus of rigidity is 70 GPa and there is 85 turns in the spring. Answer in 4 decimal places7.10 A rigid bar is suspended by three equally spaced wires of equal length. Theouter wires are steel and are 2 mm in diameter, the centre wire is copper andis 5 mm in diameter. If the weight of the rigid bar is 2,25 kN, calculate the loadcarried by each wire. If the temperature of the system is now raised by 90 °C, what will the magnitude and nature of the resultant stresses set up in the steeland copper wires be. (Let EST = 200 GPa; Ecu = 100 GPa; aST = 12 x 10_6/°C;acu = 18 x 10-6/°C?)