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Engineering

Liquid benzene and liquid n-hexane are blended to form a stream flowing at a rate of 1700 lbm/h. An on-line densitometer (an instrument used to determine density) indicates that the stream has a density of 0.810 g/mL. Using specific tractors from Table B. 1, estimate the mass and volumetric feed rates of the two hydrocarbons to the mixing vessel (in U. S. customary units). State at least two assumptions required to obtain the estimate from the recommended date.

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Engineering

A laboratory furnace wall is constructed of 0.2 m thick fireclay brick having a thermal conductivity of 1.82 W/m-K. The wall is covered on the outer surface with insulation of thermal conductivity of 0.095 W/m-K. The furnace inner brick surface is at 950 K and the outer surface of the insulation material is at 300 K. The maximum allowable heat transfer rate through the wall of the furnace is 830 W/m^2. Determine how thick in cm the insulation material must be.

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Julien Friedman

Engineering

Problem 7.16 (GO Tutorial) A cylindrical bar of steel 10.4 mm (0.4094 in.) in diameter is to be deformed elastically by application of a force along the bar axis. Determine the force that will produce an elastic reduction of 3.2 * 10-3 mm (1.260 * 10-4 in.) in the diameter. For steel, values for the elastic modulus (E) and Poisson's ratio (ν) are, respectively, 207 GPa and 0.30.

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Engineering

3.

Stay at least

behind the vehicle ahead of you at all times.

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Engineering

Explain the use of the Kanban system in a production line?

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Makaila Fletcher

Engineering

A safety interlock module operates by monitoring the voltage from the

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Engineering

To increase the expected fatigue service life of a component, we can take the following measures besides the choice of a stronger material: (a) Improving the surface finish; (b) Decreasing stress concentration; (c) the structure shape; (d) All of the above

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Engineering

Which statement concerning symbols used on plans is true?

O Only carpenters use symbols.

O The same symbols are used thoroughout the world.

O

The symbols are to be noted on the title sheet or other introductory sheet of the plans.

O Symbols are never replaced by keynotes.

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Engineering

In what city did Rosa Parks get arrested

for refusing to give up her seat on a bus to

a white man?

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Engineering

In a steam power plant, energy is added by heat transfer at a rate of 2100 kW at 680◦C at the boiler, removed at a rate of 1240 kW at 35◦C at the condenser, and the pump power is 75 kW. Determine: a. thermal efficiency of power plant b. maximum possible turbine power [kW] (assume same energy transfers at boiler and pump)

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Engineering

ladders are not required to be inspected for visible defects prior to the first use of each work shift, and after any occuurrence that could affect their safety ... True or False?

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Engineering

Technician A says that after replacing a power steering hose, the system should be flushed, refilled, and bled. Technician B says to replace any O-rings

when installing a new hose. Who is correct?

A. Technician A only

B. Technician B only

C. Both Technician

A and B

D. Neither Technician

A nor B

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Engineering

Determine the temperature, in K, of 5 kg of air at a pressure of 0.3 MPa and a volume of 2.2 m3. Ideal gas behavior can be assumed for air under these conditions.

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Engineering

Which module listed below converts high voltage from the HVBP

into low voltage to charge the LV battery?

O A) SOBDM/BCCM

B) ISC

O C) BPSM

OD) DC/DC

ask

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Engineering

The high-pressure air system at OSU's Aerospace Research Center is fed by a set of two cylindrical tanks. Each tank has an outer height of 50 ft and an outer diameter of 4.6 ft. The tanks are made of 0.1 ft thick steel (steel = 499 lbm/ft?) and store air at a maximum pressure of 2500 psi at - 10 °F. How much load must the support structure at the base of the tanks carry?

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