The most common concern with using VFDs is:
A) Hertz modulation. B) Harmonic distortion.
C) Carrier frequency. D) Voltage fluctuation.
B
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Compare and contrast the economies, geography and climate, mortality rates, sex ratios, and family relationships of New England and the southern colonies. In which of the two regions would you have preferred to live? Why?
What will be an ideal response?
Tread width (unit run) is measured from the _____.
a. face of one riser to the nosing of the next riser b. face of one riser to the face of the next riser c. top of one tread to the bottom of the next riser d. subfloor to the top tread
What percentage of nursing homes use animals in some way?
A) About 50 percent B) Just over 90 percent C) Nearly 10 percent D) Under 30 percent
Pressure vessels can be hazardous because:
A) They can rupture violently like a bomb. B) They are large and technicians might trip over them. C) They can cause electrical shock if the internal motor shorts out. D) They emit harmful UV light at higher working pressures.