Static Friction Lab

Calculate the absolute uncertainty, fractional uncertainty, and percentile uncertainty

3. Examine your data in Data Table 2 and in Data Table 3. For the data with the smallest percentage difference, compare the total energy at each point. Calculate the sum U₁+Ug at x₁ as ½kx-mgx₁. Calculate that sum at x₂ as ½kx²-mgx₂. Do you expect them to agree reasonably well? Explain why they should or should not be the same. 4. Consider the same data as used in Question 3. Calculate the value of x halfway between x₁ and x₂. Calculate U₁+Ug=½kx² − mgx_for_that point. Do you expect them to agree with the energy calculated in Question 3? If they agree reasonably well, explain why they do. If they do not agree, explain why they do not agree.

Pressure distribution measurements are made on a two-dimensional wing model placed in a wind tunnel. The difference between the static pressure sockets on the surface and the static pressure of the free stream is measured. 30 data is taken at each measurement point. The average of the values measured from one of the sockets near the trailing edge was calculated as 2.30 Pa, and the standard deviation was calculated as 2.65 Pa. After applying the Chauvenet criterion to these measurement values, it was decided to eliminate 3 measurements and the new mean value was found to be 2.18 Pa and the standard deviation was 2.42. It was verified that the unexcluded data fit the normal distribution curve. Data above how many Pa and below how many Pa were eliminated? Estimate how many data have negative value (?<0) after elimination.

A force measurement system (weight scale) has the following specifications as shown in Table 1: Estimate the overall instrument uncertainty for this system based on available information. FSO refers to full-scale operating range.

Need help filling out the table with the data I have (1st row is fine but show work please)

What is the Young’s modulus in GPa

ELASTICITY OF A RUBBER BANO Weight (F) Initial length (li)cm kength with load (l2)um |Elongation x) x= l2 -l 20g 子62cm 8.25 am 0.63 40g 7.7 cm 8.89 cm 1.19 60g チ19 cm 9.22 cm 1.32 l:95 80g 100g 7.9 cm チ4 cm cm. 10.5 om 2e 6 Draw a straight line through mean of the points plo Hed and determine the slope a. Plot F against x(the x-axis), the Giraph: Legend. (Blue) Rubber band

A temperature measurement system has the following specifications: -128 to 781°C Range Linearity error 0.29% FSO Hysteresis error 0.12% FSO Sensitivity error 0.04% FSO Zero drift 0.32% FSO FSO stands for "Full Scale Output". Estimate the overall instrument uncertainty for this system based on the available information. Use the maximum possible output range over the FSO in your computations.

16- Brinell harness experiment is a type of NDT test. Select one: True False

QUESTION 1 You find that statistical uncertainty is your largest measurement uncertainty and that the V value is your largest propagated uncertainty. How can you try to improve both uncertainties in the simplest. but most effective way? O use a new V instrument and a new DV instrument to collect more measurements at a wicer variety of V data points O collect DV data for new IV data points O use a new V instrument but the same DV instrument to collect the same numtber of measurements at a wicer variety of IV data points o take more measurements for the DV value at the IV data points aiready collected and add more IV data points O use a new DV instrument to take more DV measurements for the Ivdata points already collected and collect additional DV data for more IV data points not previcusly measured o start over to collect the same number of DV measurements as before. but al a greater variety of IV data points than before o take more measurements for the DV values at the IV data points…

1- Select the optimum choice for: high speed air craft skins material. Table 1: The properties of metallic materials E, GPa Max. use lemp, 'C | Density, Mg/cm' ay, MPa | Relative cost per unit sheet area Material 2.8 300 2 Aluminum alloy 200 69 200 7,8 350 350 700 Carbon steel Stainless steel 193 7.8 650 6 8.9 600 6 Nickel alloy Titanium alloy 207 1000 116 600 4.5 900 10 Table 2: Weighting factor Specific yield strength: Max, use temperature: Youngs modulus: 4 2

7.8

plz ansswer q1 part e velocity is in km/h  not in m/s

Please show everything step by step in simplest form. Please provide the right answer exactly as per the Question.  Please go through the Question very accurately.

Home work for tensile test The following data was obtained from a tensile test on 135 Load (kN) Extension (mm) 16 32 56 72 95 110 132 142 140 0.2 0.4 0.7 0.9 1.5 2.5 5.0 8.5 10.0 12.0 a specimen of 10mm diameter and gauge length 60mm. Using the graph paper supplied, plot the load-extension diagram and determine: (1) The tensile strength (2) 0.1% Proof Stress (3) Young's Modulus for the specimen

PLEASE CHOOSE THE CORRECT OPTİONcourse name : Measurement Technique

At a pressure of 0.01 atm, determine (a) the melting temperature for ice, and (b) the boiling temperature for water. You might want to use Animated Figure. (a) i °C (b) і °C

tensile test PCKN) AL (Mm) Dimensions of the sample be fore e xamin ation 4.12 0. 29 D= 9.5mm L=50 7.64 0.55 12 0.91 15, 8 4 l.27 19.5 1.6 2५.3 2. 11 28 3.5 Dimensions of the sample after exam ination 31.2 5.25 d - 5.7 33.6 2=? 35 8.75 35.7 1o.5 36 12.2 31.5 15.7 27.8 15.8

Sample Paychrometrie Chart (Use the Chart from the Weather ToolKit 6.0 WET BULB (WB) TEMPERATURE 5.5 35 5.0 作30 4.5 300 4.0 25 HMIDI 3.5 20 3.0 2.5 15 20 68% 2.0 S0% 1.5 10 (kPa) 100 1.0 20% 0.5 10% 0.0 -10-5 0 5 10 15 20 25 30 35 40 DRY BULB TEMPERATURE (Celsius) At a temperature of 25 °C what is the mixing ratio if the relative humidity is E Work from the printed chart from the Tools folder O a) 12.5 g/kg Ob) 16.5 g/kg O) 18.5 g/kg O d) 20 g/kg O e) 22.5 g/kg VAPOUR URE

Q.1 a. Repeatability and reproducibility are ways of measuring precision, particularly in the field of engineering. i. What is an engineer's expectation when performing repeatability or reproducibility? ii. State a difference between repeatability and reproducibility in an experiment? b. Figure Q.1 shows the measurement data of two types of thermal transducers namely thermocouple. Турe E Туре К 6.8 4.2 20 40 60 80 100 Temperature Difference (°C) Voltage Output (mV)

Course: ME322 Mechanical Systems Labrotary

Convert the following using the conversion table attached.

THERMODYNAMICS

2. Consider the voltmeter calibration data in Table 1. Plot the data using a suitable scale. a) Specify the percent maximum hysteresis based on full-scale range. b) Referring to increasing input calibration, determined the sensitivity and linearity errors. Increasing input (mV) Decreasing input (mV) X Y Y 0.0 1.0 0.1 5.0 5.0 1.1 4.0 4.2 2.0 2.1 3.0 3.2 3.0 3.0 2.0 2.2 4.0 4.1 1.0 1.2 5.0 5.0 Table 1: Calibration results 0.0 0.2

5.35 Subsonic aircraft use a pitot tube (impact pressure tube) and a static pressure port to determine aircraft airspeed by U = 2Ap Pair 2PH₂8H = where H = Aр/Pнg is Pair the differential pressure expressed in either inches Hg or mm Hg. The value of H can be measured to within 1% (95%) uncertainty. For a measured H of 20 mm Hg, estimate the airspeed and the uncertainty in airspeed at sea level due to H. Use International Standard Atmosphere (ISA) conditions of 15°C and 101,320 Pa abs. For the densities, use PH₂(kg/m³) = 13595-2.57(°C) ±0.1 and treat dry air as an ideal gas so that pair (kg/m³) 3.4837 x 10³p(Pa abs)/T(K) ± 0.001. Neglect the uncertainties in the two densities in the analysis. =