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Question #246449
Mechanical Engineering
steam inside a closed vessel of fixed volume, 0.14 m^3. The steam exerts a pressure of 10 bar at 250 degrees Celcius. If the vessel is now cooled so that the pressure falls to 3.5 bar, determine the mass of the steam, the dryness fraction and the final temperature
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Question #246369
Electrical Engineering
What do you think is the main disadvantage of clipper circuit over clamper circuit?
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Question #246341
Mechanical Engineering
In a non flow process there is heat transfer loss of 1055kJ and internal energy increase of 210kJ determine the work transfer and state whether the process is expansion or compression
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Question #246335
Mechanical Engineering
A 10 kg ball falls form the height of 100 m (a) calculate the vertical speed of the ball during the first 4 seconds ,(b) calculate the height of the ball above the gorund during the first 4 seconds ,(c) calculate the kinetic and potential energies of the ball.(d) determine the total mechanical energy of the ball?
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Question #246333
Electrical Engineering
Task 1: You are to design a 4-bit arithmetic unit that consists of a 4-bit adder/subtractor circuit. The arithmetic unit takes as inputs two 4-bit numbers (A and B) and one control input (M) add/subtract selector that selects the type of operation the unit will perform. When the input control is '0', the input numbers are added. When it is set to '1', the two input numbers are subtracted (AB).

• Design and construct a 4-bit adder/subtractor circuit. Draw the produced circuit.
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Question #246331
Electrical Engineering
Design and construct a 4-bit adder/subtractor circuit. Draw the produced circuit.
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Question #246212
Mechanical Engineering

Calculate the internal energy of 0.3 m3 of steam at 4 bar and 0.95 dryness. If this steam is superheated at constant pressure through 30°C, determine the heat added and change in internal energy


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Question #246076
Mechanical Engineering

 Bolts holding a flanged joint in a steam piping are tightened to an initial stress of 400MN/m2. If the bolts are made from steel with a young's modulus of 200GN/m2, determine the relaxed a) stress after 10,000 hours of use. [The creep parameters for this material MN/m2] follows: n 3, A 4.8 x 103per hour per are as b) A series of creep test on an austenitic high temperature steel gave the following results Stress (MNm2) Eo(%) Steady state creep rate 


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Question #246020
Mechanical Engineering
The pressure-volume correlation for a non-flow quasi-static process is given by P= (8-4V) b, where p is in bar, where V is in m3. If 140 kJ of work in supplied to the system, determine the final pressure and volume of the system. Take the initial volume as 0.6m3.
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Question #245991
Electrical Engineering

. Determine the colors of the bands on a a. 10 percent, 0.6 Ω resistor. b. 35 MΩ, 5% tolerance c. 4.7x109 Ω


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