Engineering » Page 83

Engineering

Isaiah Pugh

What are some tasks performed prior to the commencement of a maintenance job activity?

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Engineering

Kara Kent

Cutting and forming operations performed on relatively thin sheets of metal. a) - True b) - False

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Engineering

Kelton Mcgrath

Water enters a circular tube whose walls are maintained at constant temperature at specified flow rate and temperature. For fully developed turbulent flow, the Nusselt number determined from Nu - 0.023 can be law of cooling in this case is Re0.8 PrO. 4. The correct temperature difference to use in Newton's (a) the difference between the inlet and outlet water bulk temperature (b) the difference between the inlet water bulk temperature and the tube wall temperature (o) the difference between the average water bulk temperature and the tube temperature (d) the log mean temperature difference (e) None of the above. Explain.

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Engineering

Tyshawn Mays

Which utility program reads an assembly language source file and produces an object file?

(A) compiler

(B) linker

(C) assembler

(D) loader

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Engineering

Darion

An adiabatic closed system is raised 100 m at a location where the gravitational acceleration is 9.8 m/s2. What Is the specific energy change of this system in kJ/kg?

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Engineering

Shaggy

1. You have a Co-Cr alloy with Young's Modulus: 645 MPa, Poisson ratio 0.28, and yield strength 501 MPa for that alloy when used in a medical device. From these data estimate the following for a 1 x 2 cm cross-section bar of the alloy having length 12 cm: a. The maximum tensile load that can be applied in the longitudinal direction of the bar without inducing plastic deformation. b. The length and cross-sectional area of the bar at its tensile elastic limit.

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Engineering

Aedan

How much total heat energy input is needed to raise the temperature from 20°C to 100°C for 15-kg steel container filled with 17-kg liquid? [cst = 450 J/kg. Co and cli = 4100 J/kg. Co]

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Engineering

Mckenzie Floyd

Sherry recently designed an electric paper shredder that can shred 20 sheets of paper at a time. All 20 sheets are shred in 5 seconds, and the shredder can store the shreddings of 200 sheets before it needs to be emptied. Which of the following is a future design modification that would improve the shredder's design?

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Engineering

Andrew Russell

31. A (n) - _lists common engine malfunctions, possible

causes, and suggested remedies.

31

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Engineering

Antwan Herman

Suppose that the president of a small island nation has decided to increase government spending by constructing three beach resorts to attract tourists. The legislation was enacted without any delay. From here, planning will take 6 months and construction will take 2 months. Which of the following is true? Choose one: A. This policy is contractionary. B. The Laffer curve would be used to recommend this policy. C. The planning and construction of the resorts represent a recognition lag of this policy. D. This policy shows an example of automatic stabilizers taking effect. E. The planning and construction of the resorts represent an impact lag of this policy.

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Engineering

Khalil Parsons

A column has a 4.8 cm by 8.7 cm rectangular cross section and a height 4 mm. The column is fixed at both ends and has a lateral support at mid-height for the weak axis. The material has E = 200 GPa and ÏƒY = 250 MPa. a. The factor of safety for the column yielding is FS 1.5. What is the maximum load that can be applied based on the column yielding due to the normal stress? Assume the load is applied at the centroid of the section. Express your answer with appropriate units to three significant figures. b. The design is to have a factor of safety for buckling FS 2.5. What is the maximum load based on buckling in the strong axis of the column? Express your answer with appropriate units to three significant figures.

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Engineering

Jocelynn

A gas pressure difference is applied to the legs of a U-tube manometer filled with a liquid with specific gravity of 1.7. The manometer reading is 320 mm. What is the pressure difference

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Engineering

Angelique

An old refrigerator consumes 187 W of power. Assuming that the refrigerator operates for 17 hours everyday, what is the annual operating cost of the refrigerator, if the cost of electricity is $0.06 per kWh?

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Engineering

Ruffe

What is the average speed of a car that travels 80km in 1.5 hours

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Engineering

Jake Miller

A well-established way of power generation involves the utilization of geothermal energy-the energy of hot water that exists naturally underground - as the heat source. If a supply of hot water at 140oC is discovered at a location where the environmental temperature is 20oC, determine the maximum thermal efficiency a geothermal power plant built at that location can have.

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