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A clay sample was consolidated in a triaxial test chamber under an all-around confining pressure of 152 kN/m2. The sample was then loaded to failure in undrained condition by applying an additional axial stress of 193 kN/m2. A pore water pressure sensor recorded an excess pore pressure, (µd)f = 27.6 kN/m2 at failure. Determine the undrained and drained friction angles for the soil.
Three-phase inverter has Y-connected load of 10 ohm and 23mH inductance. The inverter frequency is 60Hz and the dc input voltage is 200v. Calculate line voltage rms? , Phase voltage, rms?
Sketching the Dependence of l versus h on Cartesian Axes, The distance l from a point at a height h above the Earth's surface to the horizon can be approximated using Pythagoras theorem by the expression:
Determine the depreciated value of the equipment at the end of 20 years on the following methods :- Straight line method ;- Diminishing value method ;
Let X be a zero-mean random variable having a variance of 9 and let Y be another zero-mean random variable. The sum of X and Y has a variance of 29 and the difference of X and Y has a variance of 21.
For the beam and loading shown, design the cross section of the beam, knowing that the grade of timber used has an allowable normal stress of 12 MPa.
show that if n=4, a cell can be split into four smaller cells, each with half the radius and 1/16 of the transmitter power of the original cell. If extensive measurements show that the path loss exponent is three
Does it appear that total points can be modeled as a normally distributed random variable?
Discuss the impact of the experience curve on effective capacity and state the issues which may hinder a firm from riding smoothly down the experience curve.
Design a four-bit shift register with a paralel load, usingD-flip-flops. There are two control inputs:shift and load. Whenshift t=1, the contents of the register are shifted by oneposition. New data are transferred into the register when load=1and..
A system is needed to measure flow, which continuously cycles between 20 and 30 gal/min with a period of 30 sec. The required output is a voltage varying from -2.5 to +2.5 V for the cycling flow range. The sensor to be used has a transfer function..
Determine ideal impulse response using inverse discrete-time Fourier transform. An ideal low-pass filter is described in the frequency-domain by
A peak power tracker having 5 identical 0.2 m2 PV modules is used to built a PV charger is built from a with an efficiency of 80%. The test ratings of the modules are imp,ref = 2 A, Vmp,ref = 20 V , Tc,NOCT = 42 oC, μP,mp -0.0005 /oC , τα = 0.9.
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