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The following data were recorded from a liquid limit test on a clay using the Casagrande cup device.
Test # Container (g) Container & wet soil (g) Container & dry soil (g) Blow count
Weigh container Weight of wet soil Weight of dry soil N
1 45.3 57.1 54.4 28
2 43.0 59.8 56.0 31
3 45.2 61.7 57.9 22
4 45.6 58.4 55.3 18
Determine the liquid limit
Saturated liquid water at 1000 kPa flows at 2 kg/s inside a 10 cm outer diameter steel pipe and outside of the pipe is a flow of hot gases at 1000 K with a convection coefficient of h = 150 W/m2 K.
A pump having the characteristics given( N=2133.5 rpm, n=35.6 rps, D=37.1 cm) pumps water at 25 degree C from a reservoir at an elevation of 366 m to a reservoir at an elevation of 450 m through a 36 cm steel pipe.
Carnot engine working between a source temperature of T2 and sink temperature of T1 has efficiency of 25%. if the sink temperature is reduced by 20 degrees Celsius the efficiency is increased to 30%. find the source and sink temperature
a spherical balloon is being inflated so that its volume is increasing at the rate of 5 cu meter/min. at what rate is the diameter increasing when the diameter is 12m?
The design wind speed is 15 mph at T=10C and p=0.9 bar. The efficiency of the turbine is n=20% meaning that 20% of the kinetic energy in the wind can be extracted. estimate the power in watts that can be produced by the turbine.
At the beginning of compression the pressure is 14 psi and the temperature if 60°F. The temperature at the end of combustion heat addition is 1500°F and the compression ratio is 9. Use constant specific heats at room temperature
If the effective stack height of the plant is 100 m, and the ground reflects the SO2 emission perfectly what is the SO2 concentration at a sampling point located 2 m above the ground in the town.
The two shafts in a speed-reducer unit are subjected to couples of magnitude M1 = 18 N · m and M2 = 7.5 N · m, respectively.
If the mean and variance of discrete random uniform random variable X, are E(X) and V(X) respectively, what would the mean and variance of cX be in terms of E(X) and V(X) if c is a constant
A pig farmer owns a 20-arce farm and started business with 22.1 pigs. After one year, he has 319 pigs. Assuming a constant growth rate, what is the doubling time in units of days.
The Hubert H. Humphrey Metrodome in Minneapolis opened in 1982 at a cost of $55 million. To prepare for the footings, et cetera, 30.0x10^5 cubic yards of dirt were removed.
What couple moment does he exert. How much could he exert if he moved his hands to the ends so that his hands are 254 inches apart. What force must he apply at the ends to achieve the same couple moments as when he held his hands 18 inches apart.
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