If a 50 mH inductor operates at 22 kHz, XL equals ________
A) 6912 ? B) 1100 ? C) 500 ? D) 113 ?
A
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The maximum value of SDI recognized by building codes is
A) 300. B) 50. C) 150. D) 450. E) none of the above.
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Programmable logic controllers can be divided into four primary parts: the power supply, the central processing unit (CPU), the programming terminal, and the ____.
a. loading terminal b. internal relay c. programmable logic controller d. the I/O rack
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To convert P2O5 to P multiply by ________
a. .6 b. .33 c. .44 d. 1.2
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How does frequency control operate?
What will be an ideal response?
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