Reducing the field voltage __________ the speed of the motor and __________ its torque.
A. increases, decreases
B. decreases, increases
C. has no effect on
Answer: A
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During the early years of colonization in the New World, England
A. closely controlled its colonies. B. maintained an excellent relationship with the Indians. C. paid little attention to its colonies. D. made sure all the colonies had royal charters. E. began the importation of African slaves in large numbers.
Producers and consumers of agricultural commodities are very responsive to prices in the short run
Indicate whether the statement is true or false
At today's processing plants, milk is first _____ then pasteurized.
Fill in the blank(s) with the appropriate word(s).
In order to increase the lifetime of the system, the engineers have a choice between replacing component A with one whose lifetime is distributed Exp(l/2), or replacing component B with one whose lifetime is distributed Exp(l/3).
a. Generate, by simulation, a large number (at least 1000) of system lifetimes under the assumption that component A is replaced. b. Generate, by simulation, a large number (at least 1000) of system lifetimes under the assumption that component B is replaced. c. If the goal is to maximize the mean system lifetime, which is the better choice? Explain. d. If the goal is to minimize the probability that the system fails within a month, which is the better choice? Explain. e. If the goal is to maximize the 10th percentile of the system lifetimes, which is the better choice? Explain.