Experiment 1: Pressure, Temperature, and Velocity Measurement Objective: The objective of this experiment is to determine the pressure and density of laboratory air, calibrate a pressure transducer and scannivalve, then determine the test section speed as a function of fan speed using three methods of velocity measurement. Equipment: Absolute pressure transducer, digital thermometer, pressure transducer (voltmeter), micromanometer, scannivalve, Pitot tube, low-speed wind tunnel. Part 1: Measurement of Atmospheric Pressure and Density 1. Read the barometer and wind-tunnel thermocouple. 2.
Suggest two reasons for this change. Task 2 Press back but not clear and change the number of chips to 10 but leave the acid concentration at 1.0 mol/dm3 . Click start and take readings approximately every 3 seconds (by clicking the take readings button) until the mass reaches 0.0 g. Stop the reaction immediately. Plot these results on the same grid as the results of your first experiment. How does the rate of reaction in Task 2 compare with the rate in Task 1?
Then you place another 200 gram mass on the 210 degree mark. Then we have to replace the mass at the 30 degree mark with two masses, one at the 0 degree mark and one at the 80 degree mark. Essentially we are trying to calculate the x and y component vectors of a 200g mass at 30 degrees. So what we did was we just guess and checked the variables of weight at the 0 degree mark and at the 90 degree mark’s pullys until the ring was centered. You can us+e the weight on each pully to calculate the magnitude and the direction of the component vectors at 90 and 0 degrees.
7. You want to build a circuit which causes a ligh tbulb to turn on when you throw a switch. So, you build the circuit if Figure 5. When the switch is connected to point A the capacitor charges, and when you connect the switch to point B the light goes on. Let the resistance of the light bulb be Rℓ = 1.50 ×103 Ω, the potential difference across the battery is VB = 10.0V , and the capacitor has a capacitance of C = 1.35 × 10−4 F
Calculate the impedance by the measured values of voltage and current from the oscilloscope. Also calculate the impedance from = − C. Answer: Impedance, Z = 5∠0 34.65 60.48°) = 173.25 - 60.48⁰ = 85.37 Ω - j150.76 Ω Again, XC = 1/ = 1/ (6280 x 10-6) = 159.24
What is a spectrophotometer? A spectrophotometer is an instrument used in laboratories that measures the absorbance of materials within the ultraviolet and visible light spectrum. It works by passing light through the material and measures the amount of light absorbed; the higher the concentration, the more light is absorbed. This technique was extremely useful in this lab because by measuring the absorbance of the copper solution, the concentration of copper was determined and the percentage of copper within the penny was calculated. Materials: * Spectrophotometer * 15 M NH3 * 0.40 M Cu2+ Solution * 8 M HNO3 Procedures: Figure out the optimal wavelength for the spectrophotometer.
The spectrophotometer was set for 360 nm and the mode was changed to transmittance. The zero adjustment knob and 100% adjustment knob (using the blank) adjusted accordingly. The absorbance of each sample was measured at 360 nm. The wavelength was then set to 380 nm. The absorbance of each sample was calculated again after fixing the 100% adjustment knob to read 100.
75uS is the time constant used for a high-pass filter to enhance the high frequency audio before transmission to help reduce noise upon reception. The PLL is the portion of the IC which locks your chosen transmission frequency to the crystal reference X1. The PLL portion also contains an oscillator circuit which works in conjunction with the external parts of D5 and the STUB (that weird trace on the back of the board). D5 is called a varactor diode, and is a special variety of diode that is connected backwards. As a reverse DC voltage is applied across the diode, its capacitance varies.
By putting different values for r3, we can get a number of lost revenues by simulation method. 4. Putting it together We will put all the random variables and calculated values together and then we have to find the cumulative number of weeks from the values for weeks which we have found in intervals between breakdowns. Now, we have to take that much values of r2 till the cumulative number of weeks reached at 52 or near about 52 such that if we will take one more value for r2 then cumulative number exceeds to 52. We are taking 52 weeks as an upper limit here because we have to find the lost revenue over the period of 1 year and 1 year contains 52
C. 0.853 s D. 0.925 s Don't panic. Use the calculated settings for Relay A, and calculate the response time of relay A for a fault current of 8075A. i.e. PSM=8075/(ES A), then get t(TSM=1pu), then multiply this time by the set TMS A to get the required response time of relay