Answer the following statement(s) true (T) or false (F)
1. To eliminate “forward compatibility,” ensure that all parts, boards, and the solder being used are not L-F.
2. When modifying a circuit board, the wire for the change should be installed by running it on the x- and y-axis of the board without going underneath components.
3. Adhesives with cyanoacrylate should always be used whenever there is a danger of the material being heated.
4. If the lead belongs on a DIP, the wire goes to the edge of the pad and is then bent up the lead, not down through the hole.
5. Edge connectors/fingers rarely need to be repaired.
1. False
2. True
3. False
4. True
5. True
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When elastomeric insulation is exposed to high temperature, it will _____.
a. catch fire b. melt c. harden d. deform
Consider two atoms: one red and the other blue. There are six locations to place those two atoms. You can only have one atom in each location. How many microstates exist for this system?
A. 15 B. 30 C. 36 D. 12 E. None of the above
? Identify and state the historical significance of James B. Weaver.
What will be an ideal response?
Three years ago, Witt Gas Controls purchased equipment for $80,000 that was expected to have a useful life of 5 years with a $9000 salvage value. Increased demand necessitated an upgrade costing $30,000 one year ago. Technology changes now require that the equipment be upgraded again for another $25,000 so that it can be used for 3 more years. Its annual operating cost will be $48,000 and it will have a $19,000 salvage value after 3 years. Alternatively, it can be replaced with new equipment that will cost $68,000 with operating costs of $35,000 per year and a salvage value of $21,000 after 3 years. If replaced now, the existing equipment will be sold for $12,000.
(a) Calculate the annual worth of the defender at an interest rate of 10% per year. (b) Determine the AW of the challenger over 3 years and select it or the defender.