A bearing on a large machine is tested over a period of 8 hours at a speed of 40,500 revolutions per hour. How many revolutions does the shaft turn in the bearing during the test period?
Fill in the blank(s) with the appropriate word(s).
324,000
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A textured architectural-concrete surface is achieved by _____.
a. painting it b. covering it with veneer c. liners attached to forms d. adding an air-entraining admixture
A ____ gear moves freely on its shaft.
A. fixed B. sliding C. sprag D. scissors
A total of 100 maintenance costs, C, for ground-mounted transformers in high-density housing areas were collected by the City Electricity Authority. The costs are clustered into $200 cells with midpoints ranging from $600 to $2000. The number of times (frequency) each cell value was observed and its probability are shown. Find the expected value of the costs, E(C), for use in a PW analysis.
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If a ring gear has 36 teeth and the pinion gear has 12 teeth, what is the gear ratio?
A) 18:1 B) 3.26:1 C) 3.00:1 D) 24:1