The power factor can be defined as the ratio of true power to _____.
a. apparent power
b. total resistance
c. total current
d. reactive power
a. apparent power
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Explain the term dose-response relationship.
What will be an ideal response?
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Manufacturers of hardware for sliding and bifold doors specify ____________ for doors installed with their hardware.
A. exact sizes B. rough opening sizes C. frame size
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During a planned maintenance call, technicians should check the power wiring to make sure:
A) The unit is not grounded. B) Any resilient mounted motors are isolated from ground. C) The unit is grounded. D) A heavy wire runs from both L1 and L2 to the equipment ground.
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_____ are pockets of material within a weld that are not metal.? ?
A. Flux? B. Slag? C. Nonmetallic inclusions? D. Residual silicon?
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