What is the duty cycle of a digital waveform with a pulse width of 10 ms a period of 90 ms?
A) 9% B) 11.1% C) 90% D) 10%
B
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What kind of angle is B?
What will be an ideal response?
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Being cooled by a fan moving room-temperature air across the body is an example of cooling by:
A) Conduction. B) Convection. C) Radiation. D) Evaporation.
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The water table is _____
a. a document identifying all water sources on the job site b. a sump where groundwater is collected for pumping c. the elevation at which groundwater is encountered d. an aid to calculating the water percentage in concrete
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When making fillet welds on aluminum plate in the flat (1F) position, run the second bead along a toe of the
first weld, overlapping the first bead by _____. a. 30 percent b. 50 percent c. 75 percent d. 90 percent
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