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A 30- by 42-in. jaw crusher is set to operate with a 2 -in. opening.
The output from the crusher is discharged onto a screen with If 1-in. openings. The efficiency of the screen is 90%. The aggregate that does not pass through the screen goes to a 40- by 20-in. roll crusher, set at 1 in. Determine the maximum output of the roll crusher in tons per hour for material less than 1 in.
There will be no recycle of roll crusher oversize. What amount, in tons per hour, of the roll crusher output is in the range of 1 in. to 1 in.to and what amount is less than in.?
A wooden cylinder 30.0 cm highs gloats vertically in a tube of water (density = 1.00 g/cm cube). The top of the cylinder is 14.1 cm above the surface of the liquid. What is the density of the wood
Description of Transformer, An 11 kV to 415 V transformer has a rating of 100 kVA. The winding resistance and leakage reactance when referred to the secondary are 0.0142 Ohm and 0.0569 Ohm respectively
Two infinitely long coaxial cylindrical surfaces, r = a and r= b (b > a), carry surface charge densities ρsa and ρsb,respectively. (a) Determine the electric field intensity everywhere.
Outline the four advantages of using universal gates for implementation of logic function.- Design and implement the simplified Boolean expressions for a two 2-bit word comparator.
A 10 kW, 220 V, dc shunt motor has field and armature reistance of 110 ohms and .20 ohms, respectively. At no-load the motor runs at 1200 rpm and has an armature current of 5 A.
A 40 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 2.5 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady-state current has a maximum amplitude of 125.67
1. What are some of the fundamental differences between ladder logic programs and relay logic diagrams 2. What are the advantages and disadvantages of a PLC simulation software with virtual input
f(t) = (2+j2)e^(-3jt)+j2e^(-jt)+3-j2e^(jt)+(2-j2)e^(j3t) a) Sketch the exponential fourier spectra b) By inspection of part a sketch the trigonometric Fourier spectra c) Find the compact trigonometric Foreir series
a nonconducting circular disk of radius r carries a uniformly distributed electric charge q. the plate is set
Three cells whose open-circuit voltages are each V are connected in series. What is the open circuit voltage of the series connection If the same three cells were connected in parallel
A series circuit consisting of a 30-µF capacitor and a 0.155-henry inductor is connected to a 120-volt 60-cycle source. Calculate the circuit current and indicate whether it lags behind or leads the voltage.
A flood control project with a life of 12 years will require an investment of $300,000 and annual maintenance costs of $25,000. The project will provide no benefits for the first two years but will save $40,000 per year in flood damage
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