Harmonics are voltages or currents that operate at a frequency that is ____ the fundamental power frequency.
A. a multiple of
B. a divisor of
C. double
D. within 10 Hz of
Answer: A
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A board nailed to the tails of the rafters to provide a nailing surface for the fascia is the _____.
a. purlin b. barge board c. false fascia d. lookout
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?When a cylinder is bored and honed 0.030" oversize, how much metal is removed from the surface of the cylinder wall?
What will be an ideal response?
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A sight glass is normally found on systems using R-12 and a(n) _____.
a.
b.
c.
d.
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Mechanical devices and machines have arrangements of parts called mechanisms.
Answer the following statement true (T) or false (F)
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