In example three from the chapter, what was the benefit and cost of using a driven pulley that was twice the diameter of the drive pulley?
What will be an ideal response?
by doubling the size of the driven pulley, we get twice the torque out of the
system, but that comes at a cost of the driven pulley running at half the drive
pulley’s speed.
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70 as a 5211 code number is ____________________.
Fill in the blank(s) with the appropriate word(s).
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[-3.56 + (-2.29)] - [15.84 - (-0.22)] = ____.
A. -21.91 B. -14.35 C. 14.79 D. -17.59
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What is the HTM for a surface with a U valve of 1.5 and a temperature difference of 30?
A) 1.5 B) 31.5 C) 30 D) 45
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A blowdown system for a cooling tower ____.
A. relieves the concentration of sediment in the sump B. provides extra draft for higher evaporation rate C. promotes vortexing D. provides a means for balancing the water flow
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