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Engineering

Health Maintenance Organizations (HMOs) are the new model for providing medical care. Criticisms of HMOs include all of the following except: a. big salaries for administrators. b. overemphasis on profit instead of care. c. multiple trips to many specialists. d. negligent under-treatment.

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Engineering

Which of the following is an acronym for a recently introduced type of vehicle that has a high fuel economy rating? A. SUVB. AQIC. HEVD. CFC

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Elianna Ramirez

Engineering

A 20 foot length of two-conductor 26 AWG copper wire is used to connect a single strain gage into a quarter-bridge circuit. If each conductor has a resistance of 20.4 Ω per 1000 feet, how much has the apparent gage resistance changed? Calculate the strain induced by this error if the initial gage resistance is 120 Ω and 350 Ω.

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Engineering

Some chemical reaction is being run inside a sealed gas cylinder. During the reaction, a gaseous product is formed. The pressure P exerted by the gas has been measured five times. A gauge calibrated in units of psig was used Data from the measurements are provided below Table 1. Pressure measurements of the oxygen generated by chemical reaction inside a gas cylinder Run d P (psig) 21.0 20.2 20.7 21.3 20.5 8. Estimate the Type A uncertainty in these measurements. Be sure to include the units. Estimate the Type B uncertainty associated with these measurements, Be sure to include units. Determine the uncertainty in the measurement of pressure in the cylinder. Be sure to include units. State your a. answer as average + / -uncertainty.

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Engineering

One kg of ammonia in a piston-cylinder assembly, initially saturated liquid at 5 bar, is boiled at constant pressure to saturated vapor. Kinetic and potential energy changes are negligible. a) evaluate the heat transfer [Btu] for this process; b) calculate the entropy production [kJ/K] for this process assuming that the heat transfer occurs with a heat reservoir at 277.28 K. c) Explain on a thermodynamic basis why this process reversible, irreversible or impossible; d) show the states and process on P-v and T-s diagrams.

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Engineering

A large-particle composite consisting of tungsten particles within a copper matrix is to be prepared. If the volume fractions of tungsten and copper are 0.70 and 0.30, respectively, estimate the upper limit for the specific stiffness of this composite given the data that follow.

Specific Gravity Modulus of Elasticiy (GPa)

Copper 8.9 110

Tungsten 19.3 407

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Engineering

You want to design amplification and filtering circuitry to record axon action potential (AAP) signal on your Arduino microcontroller. You plan to use the entire range of your microcontroller (0 - 5 V). Determine the maximum gain for your amplification circuitry. (We are assuming here the input signal is all positive)

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Engineering

What invention would you argue most impacted mechanical engineering

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Salvador Hoffman

Engineering

The gradual and uniform cooling of glass that has been heated in order to relieve random internal stresses is ... Group of answer choices annealing tempering quenching heat treating

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Engineering

Two loads connected in parallel draw a total of 2.4 kW at 0.8 pf lagging from a 120-V rms, 60-Hz line. One load absorbs 1.5 kW at a 0.707 pf lagging. Determine:

(a) the pf of the second load,

(b) the parallel element required to correct the pf to 0.9 lagging for the two loads.

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Engineering

2 samples of water of equal volume are put into dishes and kept at room temp for several days. the water in the first dish is completely vaporized after 2.8 days while the water in the second dish takes 8.3 days to completely evaporate. What can you conclude about the two dishes

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Engineering

You are considering the purchase of a heat pump system with aresistive heating element in the air-handler for back-up during the extra cold winter months when the temperature is below the heat pump's capability. The manufacturer's technical data states the maximum current draw for the unit you are looking at is 18 amps at 240 volts, 1-phase. The circult breaker that you would have to install to carry this resistive load is:

A. 20 amp, 2-pole

B. 40 amp, 1-pole

C. 30 amp, 1-pole

D. 45 amp 2-pole

E. 25 amp. 2-pole

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Marlie Randolph

Engineering

An Ideal gas is being heated in a circular duct as while flowing over an electric heater of 130 kW. The diameter of duct is 500 mm. The gas enters the heating section of the duct at 100 kPa and 27 deg C with a volume flow rate of 15 m3/s. If heat is lost from the gas in the duct to the surroundings at a rate of 80 kW, Calculate the exit temperature of the gas in deg C. (Assume constant pressure, ideal gas, negligible change in kinetic and potential energies and constant specific heat; Cp = 1000 J/kg K; R = 500 J/kg K)

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Engineering

Calculate the power required to accelerate a 1150 kg car from rest to a final velocity of 30 m/s up a 100 m long uphill road with a slope of 30 degrees from horizontal over a time of 12 seconds. Disregard friction, air drag, and rolling resistance.

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Engineering

In terms of thermal comfort what does the measurement clo represent?

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