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1. Describe the relative advantages and limitations of cold and hot isostatic pressing.
2. Should green compacts be brought up to the sintering temperature slowly or rapidly? Explain your reasoning.
3. Explain the effects of using fine powders and those of using coarse powders in the making of P/M parts
4. It is possible to infiltrate P/M parts with various resins as well as with metals. What possible applications can benefit from infiltration? Explain.
5. Explain why the mechanical properties of workpiece materials are not significant in most of the processes described in this chapter.
6. In which of the manufacturing activities in industry is the wire EDM process most applicable?
7. Why do different material-removal processes affect the fatique strength of materials to different degrees?
8. Which of the advanced machining processes causes thermal damage? What is the consequence of such damage to workpieces.
9. Does EDM affect the fatigue strength of cold worked metals? Explain.
Consider the following 2-input (x1,x2) single-output (z) asynchronous circuit: The output changes from 0 to 1 only when x2 changes from 0 to 1 while x1 = 1. The output changes from 1 to 0 only when x1 changes from 1 to 0 while x2=1.
Describe and explain drift current and diffusion current in a PN junction in thermal equilibrium. What causes each In which directions are the electrons, holes, electron current, and hole current flowing for each effect
3W light connected to ideal 9V battery with ideal wires a) Draw diagram using circuit symbol for a resistor in place of bulb b) What would current draw from bulb be. I= c)What is if the equivalent resitance of the bulb
what is the minimum guard time interval for preventing inter symbol interference and what is the maximum data rate (BPSK signaling) where minimum SINR is 40
Using Floating Point Unit and the switch statement Create an HLA program to perform the following: -Two data conversions (decimal,binary,hex) -Two measurement calculations (miles,feet,meters,inches) -Two logical operations(and,or,x-or)
Describe the how the Hall Effect it is used to measure whether a semiconductor material is n-type or p-type. Sketch a diagram and show the critical measurements.
for each implicant in f indicate its reducibility.perform the expand operation on fa b c e0 1 2 5 6 7 where e
Consider a Δ-connect, 25 kVA, 480 V, 60 Hz, six pole synchronous generator. The field current is set such that the line voltage is 504 V when supplying a rated load. Consider the armature resistance to be negligible.
question an uncharged nonconductive hollow sphere of radius16.0cm surrounds a17.0microc charge located at the origin of
(a) if there is no current in the loop, what is the magnetic flux through the coil (b) When the current in the coil is 3.8 A in certain direction, the net flux through the coil is found to vanish. What is the inductance of the coil.
Use a K-Map to design a circuit that has two operations. In mode 1, it outputs the value of the 3-bit input multiplied by 3. In mode 2, it outputs the number of 1's in the 3-bit input. Design a circuit that implements this function.
if the energy strored in the fully charged battery is used to lift the battery with 100% efficiency, what height is attained. Assume that the acceleration due to gravity is 9.8 m/s^(2) and is constant with height.
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