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Engineering

Noel Browning

The total process of quality control is best described by what

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Engineering

Danica Chase

A binary liquid system exhibits LLE at 25°C. Determine from each of the following sets of miscibility data estimates for parameters A12 and A21 in the Margules equation at 25°C: (a) x1 α = 0.10, x1 β = 0.90; (b) x1 α = 0.20, x1 β = 0.90; (c) x1 α = 0.10, x1 β = 0.80.

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Engineering

Leila Marks

The radiator of a steam heating system has a volume of 35 L and is filled with superheated water vapor at 200 kPa and 200°C. At this moment, both the inlet and the exit valves to the radiator are closed. After a while it is observed that the temperature of steam drops to 80°C as a result of heat transfer to the room air, which is at 21°C. Assume the surroundings to be at 0°C.

Determine the entropy change of the steam during this process.

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Engineering

Lawson Matthews

If safeguarding is not possible what must be used instead

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Engineering

Andreas Schaefer

The fuel mixer in a natural gas burner mixes methane (CH4) with air to form a combustible mixture at the outlet.

Determine the mass flow rates at the two inlets needed to produce 0.5 kg/s of an ideal combustion mixture at the outlet. Use data from the tables.

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Engineering

Ferrell

What are some ways in which power machinery is used in agricultural industry

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Engineering

Lexi George

Find the total amount of heat Q lost through a wall 10' by 18', with R value from q. 1. Inside temperature is 70°F while outside is 45°F.

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Engineering

Everett

S1.1 The Acre-Foot. Hydraulic engineers in the United States often use, as a unit of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumped 2.0 in. of rain in 30 minutes on a town of area 26 km2. What volume of water, in acre-feet, fell on the town? S1.2 The Thunderstorm. What mass of water fell on the town in S1.1The Acre-Foot during the thunderstorm? One cubic meter of water has a mass of 103kg.

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Engineering

Jamie Solis

Piping layout carrying liquid water at 70°F at a volumetric flow rate of 0.2 is composed of four sections of 4-in. Diameter steel pipe having a total length of 550 ft, three 90" rounded elbows, and a fully open valve. Evaluate Equation 2.31, in if the valve is (a) a globe valve, (b) a gate valve.

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Engineering

Pope

to read the line voltage supplied to an appliance, you should connect the voltmeter a. in series with the power supply B. between the grounded wire and the water pipe C. across the power supply D. between terminals of two adjacent circuit parts

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Engineering

Tyrone Davies

If a signal is transmitted at a power of 250 mWatts (mW) and the noise in the channel is 10 uWatts (uW), if the signal BW is 20MHz, what is the maximum capacity of the channel?

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Engineering

Clark Haley

A hollow aluminum sphere (kAl = 234 W/mK), with an electrical heater in the center, is used in tests to determine the thermal conductivity of insulating materials. The inner and outer radii of the sphere are 0.18 and 0.21 m, respectively, and testing is done under steady-state conditions with the inner surface of the aluminum maintained at 250°C. In a particular test, a spherical shell of insulation is cast on the outer surface of the sphere to a thickness of 0.15 m. The system is in a room for which the air temperature is 20°C and the convection coefficient at the outer surface of the insulation is 30 W/m2K. If 80W are dissipated by the heater under steady-state conditions, what is the thermal conductivity of the insulation?

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Engineering

Copeland

g A primary sedimentation basin is designed for an average flow of 0.3 m3/s. The TSS concentration in the influent is 240 mg/L. The average solids removal efficiency of the basin is 60 percent. The sludge has an average solids concentration of 4 percent and a specific gravity of 1.025. Calculate (a) the quantity and volume of sludge produced, (b) the effluent flow rate, and (c) the pump cycle time if the pumping rate is 570 L/min.

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Engineering

Guest

For an Ac signal with peak voltage Vp equal to 60V, the same power would be delivered to a load with a dc voltage of

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Engineering

Angeline Camacho

Befor operating any plant, machinery or equipment, you should

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