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1. A small county board is composed of three commissioners. Each commissioner votes on measures presented to the board by pressing a button indicating whether the commissioner votes for or against a measure. If two or more commissioners vote for a measure, it passes. Design a logic circuit that takes the three votes as inputs and lights either a green or a red light to indicate whether a measure passed.
2. A water purification plant uses one tank for chemical sterilization and a second, larger tank for settling and aeration. Each tank is equipped with two sensors that measure the height of water in each tank and the flow rate of water into each tank. When the height of water or the flow rate is too high, the sensors produce a logic high output. Design a logic circuit that sounds an alarm whenever the height of water in both tanks is too high and either of the flow rates is too high, or whenever both flow rates are too high and the height of water in either tank is also too high.
two points b and c lie on radial line of a rotating disk. the points are 2 inches apart. vb700 ftmin and vc880ftmin.
a 10 ft3 vessel contains steam at 200 psi and 500degf. a valve on top of the vessel is opened and steam is expelled to
Water fills a 0.5 m 3 piston-cylinder device at a pressure of 200 kPa and a quality of 40%. The container is now heated until the temperature reaches 500°C. Determine the final volume. Sketch on a P-v diagram relative to the saturation lines
a gas bubble is confined in a capillary tube of internal diameter 0.0007 cm . oil and water are present in either side
a well-insulated turbine operating at a steady state develops 23 mw of power from a steam flow rate of 40 kgs. the
a certain indutrial process requires a steady stream of saturated vapor steam at 200 kpa at the rate of 2 kgs. there
Determine the stress to cause yielding using Von Mises criteria for the system sx=20MPa,sy=10MPa, and txy=3MPa. Use the following two different approaches.Use the Von Mises criteria directly. syield (in MPa):
Consider the ideal regenerative Rankine cycle for a power plant (shown below), where there is no heat loss or pressure drops in the piping, the turbine and pumps are isentropic, the heat loss in open feed water heater (FWH) can be neglected, there ar..
A four-stroke engine has a total displacement volume of 10L, 125mm bore and 16.3:1 compression ratio. The engine produces a maximum of 210 kW at 2100 RPM. The intake air is at 45 degrees C and 22.5 g/s of air flow into each cylinder. Calculate the vo..
a car engine produces 136 hp on the output shaft with a thermal efficiency of 30. the fuel it burns gives 35000 kjkg as
two cylinders are filled with liquid water ? 1000 kgm3 and connected by a line with a closed valve. a has 100 kg and b
Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10MPa, 450C and 83 m/s, and the exit conditions are 10kPa, 92 percent and 42 m/s. The mass flow rate of the steam is 12 kg/s.
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