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

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Manual switches are basic devices that are used to set the temperature of a motor.

Answer the following statement true (T) or false (F)

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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

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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?

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