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Develop a flowchart to describe the event sequence for the running phase of the bottle-filling system of below example.
Insertion of a coin and pushing of buttons provides a paper cup with coffee that can be black, with sugar, with cream, or with both.
The stepper has per step. Design a system that accepts a 4- to 20-mA input to produce the 100- to 200-rpm speed. Use a V/F converter.
Define input variables, output variables, and the sequence of serial/parallel events Figure.
Suppose the worm gear of Figure 1 has a potentiometer attached as shown in Figure 2, so that the stem position is converted to resistance.
How long does it take to move the stem over the full range of travel? What is the minimum flow rate?
A control valve operates from a 3- to 15-psi control signal. To have a 40-gal/min flow rate, express the signal input.
The shaft is driven through a 10:1 reducer from a stepping motor of per step.
The level of water in a tank is to be controlled at 20 m, and the output flow rate is nominally through a control valve, as shown in Figure.
An equal percentage control valve has a rangeability of 32. If the maximum flow rate is , find the flow at 2/3 and 4/5 open settings.
Design a system by which a control signal of 4 to 20 mA is converted into a force of 200 to 1000 N.
The SCR in Figure requires a 4-V trigger. Design a system by which the gears are shifted when a CdS photocell resistance drops below 2.5 kO.
A hydraulic system uses pistons of diameter 2 cm and 40 cm. What force on the small piston will raise a 500-kg mass?
A feed hopper requires 30 lb of force to open. Find the pneumatic actuator area to provide this force from a 9-psi input signal.
A stepping motor has 130 steps per revolution. Find the digital input rate that produces 10.5 rev/s.
What is Programmatic Advertising? What is RTB?
Are there gaps and/or flaws in Pericles' characterization of democracy?
Take photos of your experiment showing the different color bands produced in the two paper chromatograms.
Describe the difference between sentimentalism and intuitionism. Does one theory seem more plausible than the other? Explain.
This rope is strung over a massless, resistance-free pulley. The blocks are released from rest. Find the tension in the rope and the acceleration of the blocks.
How does the principle of inertia (Newton's first 1st law) apply to the motion of the ice? Briefly explain.
What do you observe about the emitted photons? (Are they spontaneous emissions, stimulated emissions or both... and how can you identify this?)
Discuss operation of a Canberra MCA system. A Canberra MCA system is an example of a Pulse Height Analyzer (PHA).
Plot the normalized internal intensity (Iint/Iinc) and the transmission (Itrans/Iinc) of the cavity for R=0.6, R=0.9, R=0.95 between ?0 = 500 run.
If the car is currently traveling forward at 13.0 m/s, what is the shortest amount of time it could take the vehicle to reach the speed limit?