Time clocks and photo cells are generally ____.
a. used to control AC motors
b. provided to monitor the contactors
c. provided for overload protection
d. used for lighting loads
d. used for lighting loads
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The ____________________, or electromotive force, is the voltage between the electrodes of a voltaic cell.
Fill in the blank(s) with the appropriate word(s).
Decorative joints are used to _____
a. relieve stresses in large slabs b. create patterns and designs c. add color to concrete patios and driveways d. control concrete cracking
When gas cylinders are disconnected from a plasma arc cutting unit before it is stored, be sure to _____
a. install a cap on the regulator outlet b. set the regulator to its maximum setting c. lay all cylinders down on their side d. replace the cylinder caps
The best method for preventing sexual harassment in the workplace is _____
a. increase the victim?s compensation b. promote the victim to a new job c. establish a no-tolerance policy d. improve employee screening methods