What do the 2011 changes in CODE say about circuit protection?
What will be an ideal response?
Devices for circuit protection are permitted to be a set of fuses or an inverse-time circuit breaker.
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In split phase motors, the centrifugal switch is operated by springloaded ____________________.
Fill in the blank(s) with the appropriate word(s).
What is the function of the field discharge resistor?
What will be an ideal response?
A motor overload relay consists of a current-sensing unit and a mechanism activated by the sensing unit that _____.
a. dissipates excess current b. opens the motor circuit c. trips an alarm d. decreases motor speed
The major difference between the two most common forms of chemical bonding are:
a. neutral vs electrically charged b. endothermic vs. exothermic c. reactive vs. equilibrium d. all of the above