What benefit did the invention of the compass by the Chinese bring society?
It made the proces...
Engineering, 02.03.2020 17:34 darius12318
What benefit did the invention of the compass by the Chinese bring society?
It made the process of recording events easier.
It helped sailors become expert navigators.
It channeled water from one location to another.
It changed how wars were fought
Answers: 1
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What precautions should you take to prevent injuries when dealing with heavy loads?
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Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
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The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
Answers: 2
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Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
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