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1.Select a pump to be used to supply water to a reservoir at a flow rate of 30 L/sec. The elevation head is 20 m and the distance between the supply and delivery is 100 m. A ball check valve is used with 15-cm diameter galvanized iron pipeline. Determine the working conditions. Assume a k-value of 70.
2.Calculate the stress at failure of a concrete test cylinder with a measured diameter of 152.4 mm and a recorded load of 371,426N. Units of ksi.
3.The following data is available for a hydropower plant : Available head = 130 m; Catchments area = efficiency = 220 sq. km; Annual average rainfall = 150 cm; efficiency = 91% percolation and evaporation , losses = 18 %. Determine power developed in MW taking load factor as unity
Assume the specific gravity is 2.7. Given this information, determine (a) the phase diagram of the soil, (b) the void ratio, (c) the porosity, (d) the dry density, and (e) the saturated density.
A 2L full bottle of benzene is left open (with a known density of 0.9 g/mL) in a small room (50m^3) and left over night. When a grad student comes in to open the lab she smells a powerful oder and notices that the bottle of benzene is now empty.
Assuming constant acceleration, determine how long the train blocked the crossing. Dis- regard the width of the crossing.
Water is pumped up 20 feet from one large, open tank to another large, open tank as shown in the figure below. The pipe connecting the 2 tanks has a total length of 200 feet and a diameter of 6 inches.
A rigid tank contains 40 lbm of air in 20 psia and 70 degrees F. More air is added to the tank untill the pressure and temperature rise to 35 psia and 90 degrees F, respectively.
the behaviour of structural materials using comparative statement when they are formed into structural
Crates A and B weigh 300 lb and 110 lb, respectively. They are connected together with a cable and placed on the inclined plane. If the angle θ is gradually increased, determine when the crates begin to slide.
a steel tape 30m long at a temperature of 65ordmf when lying horizontally on the ground. its sectional area is 0.082
Given the following information, determine the required DO concentration in the treatment plant effluent discharge in order to ensure that at no point downstream the DO in the river drops below 4 mg/L:
The bottom bar is made up of an aluminum bar and a steel bar, each 10 in. long placed in the parallel configuration at 70 F. That is also heated to 300 F.
determine the pressure at stagnation point on the nose of the airplane. also determine the manometer reading h for the manometer attached to the static pressure tap within the test section of the wind tunnel if the air velocity
A company manufactures a brand of light bulbs with a lifetime in month that is normally distribute with a mean=3 and a variance=1. A consumer buys a number of these bulbs with the intention of replacing them successively as they burn out. The light b..
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