A part made from 1040 hot-rolled steel is to be heat treated to increase its strength to approximately 100 kpsi. What Brinell hardness number should be expected from the heat-treated part?
What will be an ideal response?
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Casting is the end result of a method called:
a. forging b. founding c. machining d. stamping
When fully loaded with personnel, tools, and material, the wood plank used to make a scaffold platform must never deflect more than 1/60th of its ____.
a.span b.height c.width d.cribbing length
Manual switches are basic devices that are used to set the temperature of a motor.
Answer the following statement true (T) or false (F)
James, the plant manager at Global Foundries (GF), received estimates from two contractors to improve traffic flow and repave the parking areas at his production facility. Proposal A includes new curbs, grading, and paving at an initial cost of $250,000. The expected life of the parking lot surface is 4 years with annual costs for maintenance and repainting of strips of $3000. According to proposal B, the pavement has a higher quality and an expected life of 12 years. The annual maintenance cost will be negligible for the parking area, but the markings will have to be repainted every 2 years at a cost of $5000. The MARR is 12% per year. (a) How much can GF afford to spend on proposal B for the two proposals to break even? (b) Proposal B first cost came in at $700,000. Now, what
is the breakeven initial cost for proposal A, if all other estimates are correct? What will be an ideal response?