A chemical engineer working for a large chemical products company was asked to make a recommendation about which of three mutually exclusive revenue alternatives should be selected for improving the marketability of personal care products used for conditioning hair, cleansing skin, removing wrinkles, etc. The alternatives (X, Y, and Z) were ranked in order of increasing initial investment and then compared by incremental rate of return analysis. The rate of return on each increment of investment was less than the company’s MARR of 17% per year. The alternative to select is:

(a) DN
(b) Alternative X
(c) Alternative Y
(d) Alternative Z


(a) DN

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If the elevation of point A = 280.50 feet, the reading of level rod at A = 1.75 feet, and the reading of level rod at B = 0.75 feet, what is the elevation of point B?

a. 290.50 feet b. 279.50 feet c. 281.50 feet d. 291.75 feet

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The event that threatened to destroy the longstanding balance of free and slave states in the United States Senate was the

A. passage of the Kansas-Nebraska Act. B. potential admission of Oregon as a free state. C. attempt to acquire Cuba as a slave state. D. proposed building of a southern transcontinental railroad. E. discovery of gold in California and its bid for statehood.

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Technician A says that an electric motor can be used to pump the lube in an automatic chassis lube system (ACLS). Technician B says that some ACLS use air pressure to circulate the lube. Who is correct?

A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B

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