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A 8.0 kW DC shunt motor has an efficiency of 85.2 % at full rated load. Using the no-load and full-load data given below, first sketch the motor circuit diagram at both no-load and full-load and then determine the armature current I at full-load.
A hydraulic shovel will be used to excavate sandy clay and load into a 12 BCY dump trucks. The shovel's production at a 100% efficiency is estimated to be 300 BCY/h. and efficiency is 0.80. Truck travel time is estimated to be 8.0 minutes
You need to park a car under it so there can be no supports in the middle. Attached to the wall on one side and steel post on the other.
A water treatment plant has 6 settling tanks that operate in parallel (the flow gets split into six equal flow streams), and each tank has a volume of 600 m^3.
a solid shaft of radius r is subjected to a torque T, determine the radius r' of the inner core of the shaft that resists one half of the applied torque (T/2)
Engine Oil at 60 degrees C flows over a 3m long and 2m wide plate whose temperature is maintained at 20 degrees C with a velocity of 2 m/s. Determine the rate of heat transfer from the entire plate.
A visco-elastic system is subjected to an instantaneous deformation of 100 %. The stress, necessary for this deformation, is 2 MPa. After the deformation the stress decreases as a function of time as displayed in the table below.
Find the lower heating value of this fuel (Btu/lbm), the rate of fuel consumption, the heating rate needed in the carburetor, and the rate of entropy generation in the carburetor.
Imagine two small towns of 1,000 people: Blacktop and Parktown. In the urban sprawl that is Blacktop, all the residents own fuel-efficient cars (15 km/liter) and travel an average of 20,000 km per year.
Soil with a unit weight of 19.65 kN/m^3 is loaded on the ground surface by a strip load of 1.5 m wide. The strip load is 365 kN/m of wall length. Determine the vertical stress increment due to the strip load and the total pressure both at point 3 m b..
Three-ply asphalt felt and gravel roof over 2in of insulation board is supported by 18in deep precast reinforced concrete beams with 3ft wide flanges. If insulation weights 3lb/ft 2 and the asphalt roofing weights 5.5lb/ft2, determine the total dea..
AutoCAD Commands: Blocks and Layers - For this project, you'll prepare an AutoCAD drawing representing a plat map of a new subdivision called Oleson Village
Why does the resistance of thermocouple wires not influence a temperature reading when a potentiometer is used?
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