Engineering Word Problems with Explanations & Solutions

question 26 what is the output resistance of the two stage amplifier not including the 50 ohm load resistance?
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a water pump is used to pump water from a reservoir into a tank. the pipe is l = 100 m long and has a diameter d = 10 cm . if the flow rate is q = 0.1 m3/s , what is the required pump head? use f = 2102 for the friction factor. the minor losses total kl = 3.2, the elevation
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water flows at 60 cubic meters/hr from a pressurized tank. the tank water height is 10m and the exit is at 80m elevation. the pipe length is 170 m with an id of 5 cm, smooth pipe. what is the tank gage pressure?
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Actual Transformer (15 points) A 10 kVA, 2400/240 V transformer has the following parameters from the HV side:
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Two-Dimensional Boron Crystals: Structural Stability, Tunable Properties, Fabrications and Applications
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A test model is placed in the test section of a subsonic wind tunnel with a test-section to inlet nozzle area ratio of 0.145. If the free-stream velocity inside the test section is 95 m/s, calculate the pressure difference (in N/m^2) between the inlet nozzle and test-section. Assume standard sea level conditions and select the closest answer.
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Deformation mechanisms for a new medium-Mn steel with 1.1 GPa yield strength and 50% uniform elongation
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When maximum system pressure is reached and actuators are stalled, all pump output flow is returned to the reservoir through the ____ valve.
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In which position would you expect to find infants at the Pikler Institute in Budapest? A. Seated in swings B. Lying on their backs C. Lying on their stomachs O D. Propped in a sitting position
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The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in.
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when supporting the same magnitude of force, truss members in compression are generally made as compared to members in tension. question 2 options: a) the same size b) thinner c) thicker
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g what must be the sampling time (t) so that what is the maximum value of decimation (sampling rate reduction) factor (m) that can be chosen without any signal distortion?
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A ________ signal is used at heavy traffic intersections to tell people who are walking whether they should proceed or wait.
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Takeyama and Iijima [18], Bhatnagar et al. [17], and Wang et al. [13] have postulated that shear plane theory of orthogonal machining in metals could be applied in the analysis of chip formation of unidirectional composites in a specific range of fiber orientations. Study the approaches used by these investigators and answer the following questions: a. In which range of fiber orientations was their hypothesis verified?b. Why was this hypothesis verified in this specific range?c. What are the difference in the hypotheses of Takeyama and Iijima and that of Bhatanagar et al. and Wang et al.?d. Where these hypotheses supported by experimental evidence? How good was the correlation between experiment and theory?e. Which hypothesis do you think is more realistic? Why?
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A house put has concrete stairs leading down to the garage. how much is the concerte is the needed to make stairs
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after the hydraulic resistances of all devices in a piping assembly are determined, they can be combined into a(n) resistance similar to how electrical resistances are combined in circuit analysis.
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while discussing pfi systems, technician a says the pcm provides the proper air/fuel ratio by controlling the fuel pressure. technician b says the pcm provides the proper air/fuel ratio by controlling the injector pulse width. who is correct? group of answer choices a only b only both a and b neither a nor b
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engineering multifunctional capsules through the assembly of metal-phenolic networks. angewandte chemie-international edition,
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an actual refrigeration system operates with refrigerant-134a as the working fluid. the refrigerant enters the compressor as saturated vapor at -28 c and is compressed to 1 mpa. if an isentropic efficiency of the compressor is 88 percent, determine (a) the quality of the refrigerant at the end of the throttling process, (b) the coefficient of performance.
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size effect on shear strength of glass fiber reinforced polymer-reinforced concrete continuous beams
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Which component of structural firefighting protective clothing is critical for protecting the body from steam burns?
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In underground installations, what are two recommended techniques that prevent the pulling tension through the conduit from exceeding the pulling tension specification of the fiber-optic cable?
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a hemispherical window (or viewport) in a decompression chamber (see gure) is subjected to an internal air pressure of 85 psi. the window is attached to the wall of the chamber by 14 bolts. (a) find the tensile force f in each bolt and the tensile stress s in the viewport if the radius of the hemisphere is 14 in. and its thickness is 1.25 i
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2000 rpm and will have a reduction ratio of 3.15:1 with the output shaft rotating in the same direction as the input
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