High cylinder wall wear rates occur when coolant temperature remains below ________

A) 212 deg F B) 150 deg F C) 160 deg F D) 170 deg F


B

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Based on structural considerations only, the thickness of the slab in a standard-module one -way joist floor need not exceed

A) 5 in. to 6 in. B) 2 in. to 2-1/2 in. C) 3 in. to 3 -1/2in. D) 4 in. to 5 in.

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Express 35% as a common fraction.

A. 7/20 B. 2/5 C. 9/20 D. 1/2

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Chemical costs associated with a packed-bed flue gas incinerator for odor control have been decreasing uni­formly for 5 years because of increases in efficiency. If the cost in year 1 was $100,000 and it decreased by $5,000 per year through year 5, the present worth of the costs at 10% per year is closest to:

(a) $344,771 (b) $402,200 (c) $515,400 (d) $590,700

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Tacozza Electric, which manufactures brush dc servo motors, budgeted $95,000 per year to pay for specific components over the next 5 years. If the company expects to spend $55,000 in year 1, how much of a uniform (arithmetic) increase each year is the company expecting in the cost of this part? Assume the company uses an interest rate of 10% per year.

What will be an ideal response?

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