The magnitude of the ____ output is proportional to the time duration that a deviation between set point and the controlled variable exists.
A. on/off
B. proportional
C. integral
D. derivative
E. all of the above
Answer: C
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NEMA and IP classify pull and junction boxes according to the _____.
a. type of material used for construction b. size of cable allowed c. size of the box d. degree of protection from the elements they provide
Thomas completed a study of a $1 million 3-year-old DNA analysis and modeling system that DynaScope Enterprises wants to keep for 1 more year or dispose of now. His table (in $1000 units) details the analysis, including an anticipated $100,000 selling price (SP) at the end of next year, SL depreciation, taxes at the all inclusive rate of Te = 52%, and PW at the after-tax MARR of 5% per year. Thomas recommends retention since PW > 0. Critique the analysis to determine if he made the correct recommendation.
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Dairy cattle exhibitors use a show stick much like those used in other livestock shows.
Answer the following statement true (T) or false (F)
Iron tools such as saws, hatchets, and rasps have been available for about _____ years
a) 500 b) 2,000 c) 5,000 d) 150