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on and impulse turbines P11.84 Turbines are to be installed where the net head is 400 ft and the flow rate 250,000 gal/min. Discuss the type, number, and size of turbine that might be selected if the generator selected is
(a) 48-pole, 60-cycle (n 150 r/min) and
(b) 8-pole (n = 900 r/min).
Why are at least two turbines desirable from a planning point of view?
A temporary diversion has been constructed on a highway of +4 percent gradient due to major repairs that are being undertaken on a bridge. The maximum speed allowed on the diversion is 10 mph
Can you explain the differences in partitioning among several compartments in terms of mass distribution and the compounds physical and chemical properties. For example, TCE mass distribution in air, water, soil, sediment, suspended solids and biota ..
A 3m deep layer of clay is underlain by impervious rock. An extensive area of fill is to be placed over the site.
Assume that landing aircraft have priority over departing aircraft. Also assume each aircraft carriers 200 passengers. What is the total delay to the passengers in the 20 departing aircraft?
List some of the advantages and disadvantages of rectangular primary sedimentation tanks over circular sedimentation tanks which must be considered prior to the selection
At steady state air enters a turbine at a pressure of 0.4 MPa and a temperature of 77C. As a result the turbine generates 80 kJ of work per kg of air flowing. The air exits the turbine at a pressure of 1 bar.
The storage in a rectangular section irrigation channel is 20,000 m2 at a given time. Determine the storage 1 hour later if the average rates of inflow and outflow during the hour are 23 and 18 m3/s respectively.
Given the total dissolved solids in a brine is 20,500 ppm, compute the resisitivity at a reservoir depth of 8,000 feet.
Water is used in a heat exchange to cool 5 kg/s of air from 400 C to 200 C. Calculate (a) the minimum mass flux (kg/s) of the water and (b) the quantity of heat transferred (MJ) to the water each second. The water enters at 20 C and leave at 30 C.
Draw the shear and moment diagrams for the cantilever beam shown in the figure below. Label all values and units clearly and show all work when calculating shear forces and moments.
As part of the procurement or contracting department of this federal agency, you need to demonstrate your understanding of the different project delivery methods and contract types available to the agency.
What are the processes for developing a new mine in Australia? Give your answer as per your geographic location - what are strategic risks? How would you manage these risks?
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