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An average of 20 new orders arc started through a certain factory each month. On average, an order consists of 50 parts to be processed through 10machines in the factory. The operation time per machine for each part = 15 min. The nonoperation time per order at each machine averages 8 hr, and the required setup time per order = 4 hr. There are 25 machines in the factory, 80% of which are operational at any time (the other 20% are in repair or maintenance). The plant operates 160 hr/mon. However, the plant manager complains that a total ofl00 overtime machine-hours must be authorized each month to keep up with the production schedule.
(a) What is the manufacturing lead time for an average order?
(b) What is the plant capacity (on a monthly basis) and why must the overtime be authorized?
(c) What the utilization of the plant according to the definition given in the text?
(d) Determine the average level of work-in-process (number of parts- in-process) in the plant
The teacher decides that he will not lecture unless at least k of the n students enrolled in class, are present. Each student will independently show up with probability pg if the weather is good, and with pb if the weather is bad.
Calculate Cy at high temperatures (500 K) by using the quantum mechanical equation derived by Einstein. Assume an Einstein temperature of 250 K, and convince yourself that Cy approaches the classical value at high temperatures.
A constant current of 3 A for 4 hours is required to charge an automotive battery. If the terminal voltage is 10+ t/2 ,where t is in hours, a) How much charge is transported as a result of the charging
Draw the logic diagram of a 4-bit parallel load register; include a reset signal forclearing the register when the reset signal is set to 0.
Given the starting address for the TC0 Interrupt is to become $5000. Write the assembly instruction necessary to place this ISR address into the interrupt vector table and then unmask the interrupt (assembly only).
series-parallel magnetic circuit with air-gap. the thickness of the magnetic core is 2cm. the value of magnetic flux
Delta load Assume that the load is delta connected. Each phase has a series RL load with R = 5 ohms and L = 20 mH. Plot the phase to phase voltage (Vab) versus time for one cycle. Hint: Vab = Va - Vb
Goal of project is to model a system and to design a controller for the system so that the closed-loop system performs satisfactorily - Design a switch mode PWM DC-DC converter for the speed regulation of the DC motor.
Derive the dynamic model and average value circuit of a buck converter assuming the ESRs of the inductor and capacitor are not equal to zero.
Swamping resistance means what? - where are they used?
with karnaugh maps, find a minimal sum-of-products expressionfor each of the following logic functions. Indicate thedistinguished 1-cells in each map a) F = ΣA,B,C,D (1,4, 5, 6,11, 12,13,14,15) b) F = ΣA,B,C,D (0, 1, 2,5, 8, 9,10, 11,12)
A 440 Vrms (line to line voltage) three phase induction motor runs at 1150 rpm driving a load requiring 15Nm of torque. The line current is 3.4 at a power factor of 80% lagging. Find the input power in Kw, The output power in Kw, and the efficiency..
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