Engineering

the 100-km, 230-kv, 60-hz, three-phase line in problems 4.18 and 4.39 delivers 300 mva at 218 kv to the receiving end at full load. using the nominal p circuit, calculate the abcd parameters, sending-end voltage, and percent voltage regulation when the receiving-end power factor is (a) 0.9 lagging, (b) unity, and (c) 0.9 leading. assume a 508c conductor temperature to determine the resistance of this line.
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Determine the daily and annual primary sludge production for a WWTP having the following operating characteristics: Flow 2.00 m3/s Influent suspended solids = 179.0 mg/L Removal efficiency-47.0% Specific gravity of fixed solids 2.50 Specific gravity of volatile solids = 0.999 Fixed solids 32.0%
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the open-loop transfer function of a system is given by: a) sketch the bode magnitude and phase plots for this system. b) use matlab to verify your plots in part (a). c) determine the system gain margin and the phase margin
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(T/F) Concrete is strong in tension but weak in compression.
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Calcule la entropa de 2 moles de un gas ideal que realiza una expansin libre al triple de su volumen inicial, utilice: S =nRn (Vf / Vi)
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If a-3 in. And the wood has an allowable normal stress of allow-1. 5 ksi, and an allowable shear stress of Tallow 150 psi, determine the maximum allowable value of P that can act on the beam. 2a O P-850 lb O P 750 lb O P-500 lb O P-600 lb
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what are the common characteristics of an open-center hydraulic system?
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for a simple rc low pass filter shown below, what is the reactance and the impedence for this circuit. what is the cutoff frequency? plot for frequencey using 10 data points
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(T/F) Earthquake forces are a function of the building mass (weight) and stiffness, which means that if a building is located in a high seismic region it is preferable for the building to be heavy and stiff in order reduce earthquake loads on the structure.
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Concrete should not be poured in temperatures less than?
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The oil pressure gauge should come up to normal within how long after starting the engine?
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g when a signal is sampled using an ideal impulse train, what happens to the signal in the frequency domain?
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Which stage conducts a test that will verify the code functions as intended?a. Production stageb. Staging stagec. Development staged. Testing stage
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(T/F) Increasing the concrete compressive strength of a concrete beam has negligible effect on the ultimate capacity
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Construct a phrase-structure grammar for the set of all fractions of the form a/b, where a is a signed integer in decimal notation and b is a positive integer. 1. Construct the Backus-Naur rules/form for this grammar? e. Construct a derivation tree for +311/17 to prove that it is a valid symbol in the grammar
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How many concrete cylinders must be taken for a single 28-day concrete compression test?
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How many different types of marking systems are used at large scale incidents? and what are they?
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The sample space of an experiment consists of all undergraduates at a university. Give four examples of partitions.
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What is the hazard present in this image?.Select the best option.Poor housekeepingNo guardrails/coversLifting strap is damagedUnstable stacked materials
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(T/F) Per the IBC, special inspection of the formwork for concrete construction is required to be continuous
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A structure designed and constructed to the minimum requirements of the building should not sustain structural damage during a design earthquake or wind event.
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(T/F) Special inspections for concrete construction such as inspection of formwork is required by the IBC on all commercial projects.
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Prior to cutting the tendon tails after tensioning,the field records of stressing activities must be forwarded to and approved by
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Given the same cross section, loading condition and span....a steel beam will deflect less than an aluminum beam.T/F
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